SERVICE MANUAL - Toshiba Air Conditioning

SERVICE MANUALAIR-CONDITIONER (MULTI TYPE)

<SUPER MODULAR MULTI SYSTEM - e>

Outdoor Unit

Model name:

FILE NO. SVM-15067-2

<Heat Pump Model>MMY-MAP0806HT8(J)P-MEMMY-MAP1006HT8(J)P-MEMMY-MAP1206HT8(J)P-MEMMY-MAP1406HT8(J)P-MEMMY-MAP1606HT8(J)P-MEMMY-MAP1806HT8(J)P-MEMMY-MAP2006HT8(J)P-ME

MMY-MAP0806HT8(J)PMMY-MAP1006HT8(J)PMMY-MAP1206HT8(J)PMMY-MAP1406HT8(J)PMMY-MAP1606HT8(J)PMMY-MAP1806HT8(J)PMMY-MAP2006HT8(J)PMMY-MAP2206HT8(J)P

MMY-MAP0806HT7(J)PMMY-MAP1006HT7(J)PMMY-MAP1206HT7(J)PMMY-MAP1406HT7(J)PMMY-MAP1606HT7(J)PMMY-MAP1806HT7(J)PMMY-MAP2006HT7(J)PMMY-MAP2206HT7(J)P

MMY-MAP0806HT7P-MEMMY-MAP1006HT7P-MEMMY-MAP1206HT7P-MEMMY-MAP1406HT7P-MEMMY-MAP1606HT7P-MEMMY-MAP1806HT7P-MEMMY-MAP2006HT7P-ME

MMY-MAP0806HT8(J)P-EMMY-MAP1006HT8(J)P-EMMY-MAP1206HT8(J)P-EMMY-MAP1406HT8(J)P-EMMY-MAP1606HT8(J)P-EMMY-MAP1806HT8(J)P-EMMY-MAP2006HT8(J)P-EMMY-MAP2206HT8(J)P-E

MMY-MAP0806HT8(J)P-TRMMY-MAP1006HT8(J)P-TRMMY-MAP1206HT8(J)P-TRMMY-MAP1406HT8(J)P-TRMMY-MAP1606HT8(J)P-TRMMY-MAP1806HT8(J)P-TRMMY-MAP2006HT8(J)P-TRMMY-MAP2206HT8(J)P-TR

MMY-MAP0806HT8P-AMMY-MAP1006HT8P-AMMY-MAP1206HT8P-AMMY-MAP1406HT8P-AMMY-MAP1606HT8P-AMMY-MAP1806HT8P-AMMY-MAP2006HT8P-A

<Cooling Only Model>MMY-MAP0806T8(J)P-E MMY-MAP1006T8(J)P-E MMY-MAP1206T8(J)P-E MMY-MAP1406T8(J)P-E MMY-MAP1606T8(J)P-E MMY-MAP1806T8(J)P-E MMY-MAP2006T8(J)P-E MMY-MAP2206T8(J)P-E

MMY-MAP0806T8(J)P MMY-MAP1006T8(J)P MMY-MAP1206T8(J)P MMY-MAP14B6T8(J)P MMY-MAP1406T8(J)P MMY-MAP1606T8(J)P MMY-MAP18B6T8(J)P MMY-MAP1806T8(J)P MMY-MAP2006T8(J)P MMY-MAP2206T8(J)P

MMY-MAP0806T7(J)P MMY-MAP1006T7(J)P MMY-MAP1206T7(J)P MMY-MAP14B6T7(J)P MMY-MAP1406T7(J)P MMY-MAP1606T7(J)P MMY-MAP18B6T7(J)P MMY-MAP1806T7(J)P MMY-MAP2006T7(J)P MMY-MAP2206T7(J)P

MMY-MAP0806T8P-SG MMY-MAP1006T8P-SG MMY-MAP1206T8P-SG MMY-MAP14B6T8P-SG MMY-MAP1406T8P-SG MMY-MAP1606T8P-SG MMY-MAP18B6T8P-SG MMY-MAP1806T8P-SG MMY-MAP2006T8P-SG MMY-MAP2206T8P-SG

MMY-MAP0806T8(J)P-ID MMY-MAP1006T8(J)P-ID MMY-MAP1206T8(J)P-ID MMY-MAP14B6T8(J)P-ID MMY-MAP1406T8(J)P-ID MMY-MAP1606T8(J)P-ID MMY-MAP18B6T8(J)P-ID MMY-MAP1806T8(J)P-ID MMY-MAP2006T8(J)P-ID MMY-MAP2206T8(J)P-ID

MMY-MAP0806T8(J)P-T MMY-MAP1006T8(J)P-T MMY-MAP1206T8(J)P-T MMY-MAP14B6T8(J)P-T MMY-MAP1406T8(J)P-T MMY-MAP1606T8(J)P-T MMY-MAP18B6T8(J)P-T MMY-MAP1806T8(J)P-T MMY-MAP2006T8(J)P-T MMY-MAP2206T8(J)P-T

ContentsSAFETY CAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Refrigerant (R410A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-1. Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2 Parts Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352-1. Outdoor Unit (50Hz model: MMY-MAP***6*T8*P*) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352-2. Outdoor Unit (60Hz model: MMY-MAP***6HT7*P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362-3. Outdoor Inverter (50/60Hz model: MMY-MAP***6*T8/7*P*) . . . . . . . . . . . . . . . . . . . . . . . . . . . 372-4. Parts Layout in Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382-5. Parts Layout in Inverter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-6. Outdoor (Inverter) Print Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

2-6-1. Interface P.C. board (MCC-1673) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442-6-2. Inverter P.C. board for compressor (MCC-1660) A3-IPDU . . . . . . . . . . . . . . . . . . . . . . . 452-6-3. Inverter P.C. board for compressor (MCC-1669) A3-IPDU. . . . . . . . . . . . . . . . . . . . . . . 46

3 Refrigerant Piping Systematic Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494 Combined Refrigerant Piping System Schematic Diagrams . . . . . . . . . . . . . . . . . 60

4-1. Normal Operation (COOL Mode / DEFROST Mode) -

High Outside Air Temperature (Roughly 20°C or Above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604-2. Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly Below 20°C). . . . . . 614-3. Normal Operation (HEAT Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4-5. Emergency Operation (Cooling Operation under Header Outdoor Unit Backup Scenario) . . . . . 644-6. Emergency Operation (Heating Operation under Header Outdoor Unit Backup Scenario) . . . . . 654-7. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down Operation under

Follower Outdoor Unit Backup Scenario) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

5 Control Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6 Applied Control and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . . . 766-1. Applied Control for Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 76

2-6-4. Inverter P.C. board for fan motor (MCC-1659) FAN-IPDU . . . . . . . . . . . . . . . . . . . . . . . 472-6-5. Noise Filer PC board (MCC-1608 -A, -B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

4-4. Normal Operation (HOT GAS DEFROST Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

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6-2. Applied control for Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 916-2-1. Outdoor Fan High Static Pressure Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 916-2-2. Priority Operation Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 94

6-1-1. Control Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 766-1-2. Optional Connector Specifications of Indoor P.C. Board . . . . . . . . . . . . . . . . . . .. . . . . . . 826-1-3. Test Operation of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 836-1-4. Method to Set Indoor Unit Function DN Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 846-1-5. Applied Control of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6-2-3. Applied Control of Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 966-2-4. Power peak-cut Control (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 976-2-5. Power peak-cut Control (Extended) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 986-2-6. Snowfall Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

7 TEST OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1057-1. Procedure and Summary of Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1057-2. Check Items before Test Operation (before powering-on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1067-3. Check at Main Power-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1107-4. Address Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

7-4-1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1117-4-2. Address Setup and Check Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1117-4-3. Address Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1127-4-4. Check after Address Setup when Central Control System Is Connected . . . . . . . . . . 125

7-5. Troubleshooting in Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1267-5-1. A Check Code is Displayed on the Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . 1267-5-2. Operation from the indoor remote controller is not accepted, and a check code is

displayed on the 7-segment display of the interface PC board of the header unit. . . . 127 7-5-3. There is no display of a check code on the 7-segment display on the interface

PC board of the header unit, although there is indoor unit that is not accepting

operation from the indoor remote controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1277-5-4. In checking the number of connected outdoor units and connected indoor units

after address setup, a lower number of connected units is displayed. (There are

outdoor/indoor units that do not operate in a test operation.) . . . . . . . . . . . . . . . . . . . 1287-6. Test Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 130

7-6-1. Fan Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1307-6-2. Single cooling/Single heating Test Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . 131

7-7. Service Support Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1347-7-1. Check Function for Connecting of Refrigerant and Control Lines . . . . . . . . . . . . . . . . 1347-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit . . . . . . . . . . . . . . . . . 1377-7-3. Check Code Clearing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1437-7-4. Remote Controller Distinction Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1457-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit . . . . . . . . . .. . 1467-7-6. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit . . 1467-7-7. Solenoid Valve Forced Open/Close Function in Outdoor Unit . . . . . . . . . . . . . . . . . . . 1477-7-8. Fan Operation Check in Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1487-7-9. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function . . . . . . . . 1497-7-10. Manual Adjustment Function of Outside Temperature (TO) Sensor . . . . . . . . . . . . . . 1507-7-11. Monitor Function of Remote Controller Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

7-8. SMMS WAVE TOOL FOR SMARTPHONE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1547-8-1. Prohibition/Permission of the NFC Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 1547-8-2. Confirmation for the generation of the error of the NFC. . . . . . . . . . . . . . . . . . . . . . . . . . 155

7-9. DRED (Demand response enabling device) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

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6-2-7. External master ON/OFF Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .996-2-8. Night operation (sound reduction) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1006-2-9. Operation Mode Selection Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1016-2-10. Error/Operation Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1026-2-11. Compressor Operation Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1036-2-12. Operating Rate Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

8 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1588-1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1588-2. Troubleshooting Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1598-3. Troubleshooting Based on Information Displayed on Remote Controller . . . . . . . . . . . . . . . . . 1658-4. Check Codes Displayed on Remote Controller and SMMS-e Outdoor Unit

(7-Segment Display on I/F Board) and Locations to Be Checked . . . . . . . . . . . . . . . . . . . . . . . 1708-5. Diagnosis procedure for each check code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1868-6. 7-Segment Display Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2168-7. Oil Level Judgment Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

8-9. Leakage/Clogging of Refrigerating Cycle Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2268-10. Sensor Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2328-11. Pressure Sensor Output Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

9 BACKUP OPERATION(EMERGENCY OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

9-1. Note for Backup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2379-2. Compressor Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2389-3. Outdoor Unit Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

9-3-1. Follower outdoor unit backup operation setting (failure of follower outdoor unit) . . . . . 2419-3-2. Header outdoor unit backup operation setting (failure of header outdoor unit) . . . . . . . 243

9-4. Cooling-Season Outdoor Unit Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

10 OUTDOOR UNIT REFRIGERANT RECOVERY METHOD . . . . . . . . . . . . . . . . . . . . 24610-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down) . . . . . . . . . . . . . . . . . . . . . . . . . 246

10-1-1. Note for refrigerant recovery operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24610-1-2. Refrigerant recovery procedure A (Case of no outdoor unit backup operation setting) ..246 10-1-3. Refrigerant recovery procedure B (Case of outdoor unit backup operation setting) . .. . 249

10-2. How to Operate System While Failed Outdoor Unit Being Repaired . . . . . . . . . . . . . . . . . . . . . 25110-3. Work procedure after Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

11 REPLACING COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25311-1. Compressor Replacement Procedure (Outline) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25311-2. Replacement of Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25411-3. Check Procedure to Search Cause of Compressor Oil Shortage . . . . . . . . . . . . . . . . . . . . . . . 260

12 OUTDOOR UNIT PARTS REPLACEMENT METHODS . . . . . . . . . . . . . . . . . . . . . . 26413 P.C. BOARD EXCHANGE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

13-1. Replacement of Outdoor P.C. Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 28313-1-1. List of service P.C. boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28313-1-2. Configuration of inverter assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 28313-1-3. Interface P.C. Board (MCC-1673) Replacement Procedure . . . . . . . . . . . . . . . . . . . . . 28513-1-4. Comp-IPDU P.C. Board (MCC-1669) Replacement Procedure . . . . . . . . . . . . . . . . . . 28713-1-5. Comp-IPDU P.C. Board (MCC-1669) Replacement Procedure . . . . . . . . . . . . . . . . . . 28913-1-6. Comp-IPDU P.C. Board (MCC-1660) Replacement Procedure . . . . . . . . . . . . . . . . . . 291

14 EXPLODED DIAGRAM/PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

13-1-7. Fan-IPDU P.C. Board (MCC-1659) Replacement Procedure . . . . . . . . . . . . . . . . . . . 29313-1-8. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure . . . . . . . . . . . . . . 29513-1-9. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure . . . . . . . . . . . . . . . 29713-1-10. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure . . . . . . . . . . . . . 299

8-8. SMMS-e Outdoor Interface P.C. Board Function Setting Exchange Table. . . . . . . . . . . . . . . . 223

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This service manual provides relevant explanations about new outdoor unit (SMMS-e).Please refer to the following service manuals for each indoor units.

SVM FILE NO.<4-way Cassette Type > (MMU-AP∗∗∗∗4HP-E) (Made in Thailand model) SVM-13011

<2-way Cassette Type > ( MMU-AP∗∗∗∗WH ) A10-007

<Concealed Duct Standard Type> ( MMD-AP∗∗∗∗6BHP∗) (Made in Thailand model) SVM-14069

<Slim Duct Type> ( MMD-AP2244SPH-E, AP274SPH-E ) A12-005

< Concealed Duct High Static Pressure Type > (MMD-AP∗∗∗∗6HP∗) (Made in Thailand model) SVM-15032

High-wall Compact Type ( MMK-AP∗∗∗∗MH-E ) (Made in Thailand model) SVM-05052-1

High-wall Type ( MMK-AP∗∗∗∗H ) (Made in Thailand model) SVM-09-059

<Ceiling Type>(MMC-AP∗∗∗∗7HP∗) (Made in Thailand model) SVM-13085

<Floor Standing Type>(MMF-AP∗∗∗∗6H∗) A10-1420

Console Type ( MML-AP∗∗∗∗NH-E ) (Made in Thailand model) SVM-11-036

<Air to Air Heat Exchanger with DX Coil Unit Type>(MMD-VN∗∗∗∗HEXE∗) A10-022

Fresh Air Intake Indoor Unit Type(MMD-AP∗∗∗∗HFE) A06-016

Other indoor units ( MM∗-AP∗∗∗∗H∗ ) A10-033

HOT WATER MODULE(MMW-AP∗∗∗∗LQ-E) A10-1412

− 4 −

SAFETY CAUTIONPlease read carefully through these instructions that contain important information which complies with the“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.Some of the details provided in these instructions differ from the service manual, and the instructions providedhere take precedence.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service PersonThe air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualifiedservice person. When any of these jobs is to be done, ask a qualified installer or qualified service person to dothem for you.A qualified installer or qualified service person is an agent who has the qualifications and knowledgedescribed in the table below.

• The qualified service person is a person who installs, repairs, maintains, relocates and removesthe air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporationor, alternatively, he or she has been instructed in such operations by an individual or individualswho have been trained and is thus thoroughly acquainted with the knowledge related to theseoperations.

• The qualified service person who is allowed to do the electrical work involved in installation,repair, relocation and removal has the qualifications pertaining to this electrical work asstipulated by the local laws and regulations, and he or she is a person who has been trained inmatters relating to electrical work on the air conditioners made by Toshiba Carrier Corporationor, alternatively, he or she has been instructed in such matters by an individual or individualswho have been trained and is thus thoroughly acquainted with the knowledge related to thiswork.

• The qualified service person who is allowed to do the refrigerant handling and piping workinvolved in installation, repair, relocation and removal has the qualifications pertaining to thisrefrigerant handling and piping work as stipulated by the local laws and regulations, and he orshe is a person who has been trained in matters relating to refrigerant handling and piping workon the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she hasbeen instructed in such matters by an individual or individuals who have been trained and isthus thoroughly acquainted with the knowledge related to this work.

• The qualified service person who is allowed to work at heights has been trained in mattersrelating to working at heights with the air conditioners made by Toshiba Carrier Corporation or,alternatively, he or she has been instructed in such matters by an individual or individuals whohave been trained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer is a person who installs, maintains, relocates and removes the airconditioners made by Toshiba Carrier Corporation. He or she has been trained to install,maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or,alternatively, he or she has been instructed in such operations by an individual or individualswho have been trained and is thus thoroughly acquainted with the knowledge related to theseoperations.

• The qualified installer who is allowed to do the electrical work involved in installation, relocationand removal has the qualifications pertaining to this electrical work as stipulated by the locallaws and regulations, and he or she is a person who has been trained in matters relating toelectrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, heor she has been instructed in such matters by an individual or individuals who have beentrained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to do the refrigerant handling and piping work involved ininstallation, relocation and removal has the qualifications pertaining to this refrigerant handlingand piping work as stipulated by the local laws and regulations, and he or she is a person whohas been trained in matters relating to refrigerant handling and piping work on the airconditioners made by Toshiba Carrier Corporation or, alternatively, he or she has beeninstructed in such matters by an individual or individuals who have been trained and is thusthoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to work at heights has been trained in matters relating toworking at heights with the air conditioners made by Toshiba Carrier Corporation or,alternatively, he or she has been instructed in such matters by an individual or individuals whohave been trained and is thus thoroughly acquainted with the knowledge related to this work.

Qualified installer

Qualified serviceperson

Agent Qualifications and knowledge which the agent must have

− 5 −

Definition of Protective GearWhen the air conditioner is to be transported, installed, maintained, repaired or removed, wear protectivegloves and ‘safety’ work clothing.In addition to such normal protective gear, wear the protective gear described below when undertaking thespecial work detailed in the table below.Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,electric shocks and other injuries.

Work undertaken

All types of workProtective gloves‘Safety’ working clothing

Gloves to provide protection for electricians and from heatInsulating shoesClothing to provide protection from electric shock

Helmets for use in industry

Shoes with additional protective toe cap

Gloves to provide protection for electricians and from heat

Electrical-related work

Work at heights (50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gear to wear

noitanalpxEnoitacidnI

DANGER Indicates contents assumed that an imminent danger causing a death or serious injury ofthe repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of therepair engineers, the third parties, and the users due to troubles of the product after workwhen an incorrect work has been executed.

Indicates contents assumed that an injury or property damage (*) may be caused on therepair engineers, the third parties, and the users due to troubles of the product after workwhen an incorrect work has been executed.

WARNING

CAUTION

noitanalpxEnoitacidnI

Indicates prohibited items (Forbidden items to do)The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger / warning)The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

The important contents concerned to the safety are described on the product itself and on this ServiceManual.Please read this Service Manual after understanding the described items thoroughly in the following contents(Indications / Illustrated marks), and keep them.

[Explanation of indications]

* Property damage: Enlarged damage concerned to property, furniture, and domestic animal / pet

[Explanation of illustrated marks]

− 6 −

Warning Indications on the Air Conditioner Unit[Confirmation of warning label on the main unit]Confirm that labels are indicated on the specified positionsIf removing the label during parts replace, stick it as the original.

noitpircseDnoitacidni gninraW

WARNING WARNING

ELECTRICAL SHOCK HAZARDDisconnect all remote electricpower supplies before servicing.

BURST HAZARDOpen the service valves before theoperation, otherwise there might be theburst.

ELECTRICAL SHOCK HAZARDDisconnect all remote electric power suppliesbefore servicing.

WARNING WARNING

Moving parts.Do not operate unit with grille removed.Stop the unit before the servicing.

Moving parts.Do not operate unit with grille removed.Stop the unit before the servicing.

CAUTION CAUTION

High temperature parts.You might get burned when removingthis panel.

High temperature parts.You might get burned when removing this panel.

CAUTION CAUTION

Do not touch the aluminium fins of the unit.Doing so may result in injury.

Do not climb onto the fan guard.Doing so may result in injury.

Do not touch the aluminium fins of the unit.Doing so may result in injury.

CAUTION CAUTIONBURST HAZARDOpen the service valves before the operation,otherwise there might be the burst.

CAUTION CAUTIONDo not climb onto the fan guard.Doing so may result in injury.

− 7 −

PRECAUTIONS FOR SAFETYThe manufacturer shall not assume any liability for the damage caused by not observing the description of thismanual.

DANGER

Turn offbreaker

Electricshock hazard

Prohibition

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electricalparts with the electrical parts box cover of one or more of the indoor units and the service panel of theoutdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistantgloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts.You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) isallowed to do this kind of work.

Stay onprotection

Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuitbreaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks mayresult.

Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuitbreaker to the OFF position.Failure to set the circuit breaker to the OFF position may result in electric shocks through contact withthe interior parts.Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the intake grille of theindoor unit or service panel of the outdoor unit and do the work required.

Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breakerto the OFF position, and place a “Work in progress” sign on the circuit breaker.

When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, andplace a “Work in progress” sign near the circuit breaker before proceeding with the work.

When you have noticed that some kind of trouble (such as when an error display has appeared, thereis a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water isleaking) has occurred in the air conditioner, do not touch the air conditioner yourself but set the circuitbreaker to the OFF position, and contact a qualified service person. Take steps to ensure that thepower will not be turned on (by marking “out of service” near the circuit breaker, for instance) untilqualified service person arrives. Continuing to use the air conditioner in the trouble status may causemechanical problems to escalate or result in electric shocks or other failure.

When you access inside of the service panel to repair electric parts, wait for about five minutes after turningoff the breaker. Do not start repairing immediately.Otherwise you may get electric shock by touchingterminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.

Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair orremoval work is being carried out.There is a danger of electric shocks if the circuit breaker is set to ON by mistake.

Before operating the air conditioner after having completed the work, check that the electrical parts boxcover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker tothe ON position.You may receive an electric shock if the power is turned on without first conducting these checks.

− 8 −

WARNING

General

Before starting to repair the air conditioner, read carefully through the Service Manual, and repair theair conditioner by following its instructions.

Only qualified service person (*1) is allowed to repair the air conditioner.Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, waterleaks and / or other problems.

Do not use any refrigerant different from the one specified for complement or replacement.Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in afailure or explosion of the product or an injury to your body.

Wear protective gloves and safety work clothing during installation, servicing and removal.

Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical workof the air conditioner.Under no circumstances must this work be done by an unqualified individual since failure to carry outthe work properly may result in electric shocks and / or electrical leaks.

When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and otherprotective clothing.

When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs,wear gloves to provide protection for electricians and from heat, insulating shoes and clothing toprovide protection from electric shocks.Failure to wear this protective gear may result in electric shocks.

Electrical wiring work shall be conducted according to law and regulation in the community andinstallation manual. Failure to do so may result in electrocution or short circuit.

Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heightsusing a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.

When working at heights, use a ladder which complies with the ISO 14122 standard, and follow theprocedure in the ladder’s instructions.Also wear a helmet for use in industry as protective gear to undertake the work.

When working at heights, put a sign in place so that no-one will approach the work location, beforeproceeding with the work.Parts and other objects may fall from above, possibly injuring a person below.

When executing address setting, test run, or troubleshooting through the checking window on theelectric parts box, put on insulated gloves to provide protection from electric shock. Otherwise you mayreceive an electric shock.

Do not touch the aluminum fin of the outdoor unit.You may injure yourself if you do so. If the fin must be touched for some reason, first put on protectivegloves and safety work clothing, and then proceed.

Do not climb onto or place objects on top of the outdoor unit.You may fall or the objects may fall off of the outdoor unit and result in injury.

When transporting the air conditioner, wear shoes with additional protective toe caps.

When transporting the air conditioner, do not take hold of the bands around the packing carton.You may injure yourself if the bands should break.

Be sure that a heavy unit (10 kg or heavier) such as a compressor is carried by two persons.

This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.

Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit,otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected,contact an electric engineer for rework.

After completing the repair or relocation work, check that the ground wires are connected properly.

Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires fortelephone wires.

Check earthwires.

Prohibition ofmodification.

Do not modify the products. Do not also disassemble or modify the parts.It may cause a fire, electric shock or injury.

Use specifiedparts.

When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy thespecifications given in the Service Manual (or use the parts contained on the parts list in theService Manual).Use of any parts which do not satisfy the required specifications may give rise to electric shocks,smoking and / or a fire.

− 9 −

Do not bringa child close

to theequipment.

Insulatingmeasures

No fire

Refrigerant

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electricalparts with the electrical parts box cover of one or more of the indoor units and the service panel of theoutdoor unit removed in order to find out exactly where the trouble lies, put a sign in place so that no-one will approach the work location before proceeding with the work. Third-party individuals may enterthe work site and receive electric shocks if this warning is not heeded.

Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then applya watercut method, otherwise a leak or production of fire is caused at the users’ side.

When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oilthat coats the pipes may otherwise burn.When repairing the refrigerating cycle, take the following measures.1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;

otherwise the oil mixed with refrigerant gas may catch fire.2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide

poisoning may be caused.3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the

inflammables.

The refrigerant used by this air conditioner is the R410A.

Check the used refrigerant name and use tools and materials of the parts which match with it.For the products which use R410A refrigerant, the refrigerant name is indicated at a position on theoutdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changedfrom one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an airconditioner which uses other refrigerant (R22, etc.), never use R410A.If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycleand an injury due to breakage may be caused.

When the air conditioner has been installed or relocated, follow the instructions in the InstallationManual and purge the air completely so that no gases other than the refrigerant will be mixed in therefrigerating cycle.Failure to purge the air completely may cause the air conditioner to malfunction.

Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, therefrigerant composition in the refrigerating cycle changes resulted in change of air conditionercharacteristics or refrigerant over the specified standard amount is charged and an abnormal highpressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming,and then newly recharge the specified amount of liquid refrigerant.In this time, never charge the refrigerant over the specified amount.

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other thanR410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal highpressure generates in the refrigerating cycle resulted in cause of injury due to breakage.

Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over pressurized, which may cause injury.

After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may be generated.

Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sureto recover the refrigerant with recovering device.The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakageor injury is caused.

Assembly /Wiring

After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before.Perform the work so that the cabinet or panel does not catch the inner wires.If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is causedat user’s side.

Insulatorcheck

After the work has finished, be sure to use an insulation tester set (500 V Megger) to check the resistance is1 MΩ or more between the charge section and the non-charge metal section (Earth position).If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.

− 10 −

Ventilation

When the refrigerant gas leaks during work, execute ventilation.If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerantand the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure toexecute ventilation.

Compulsion

When the refrigerant gas leaks, find up the leaked position and repair it surely.If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten theservice valve, otherwise the refrigerant gas may leak into the room.The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove thoughthe refrigerant gas itself is innocuous.When installing equipment which includes a large amount of charged refrigerant such as a multi airconditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks.If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.

Tighten the flare nut with a torque wrench in the specified manner.Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which mayresult in refrigerant leakage.

Nitrogen gas must be used for the airtight test.

The charge hose must be connected in such a way that it is not slack.

For the installation / moving / reinstallation work, follow to the Installation Manual.If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.

Check afterrepair

Once the repair work has been completed, check for refrigerant leaks, and check the insulationresistance and water drainage.Then perform a trial run to check that the air conditioner is running properly.

After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shockor injury may be caused. For a check, turn off the power breaker.

After repair work (installation of front panel and cabinet) has finished, execute a test run to check thereis no generation of smoke or abnormal sound.If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet.

Be sure to fix the screws back which have been removed for installation or other purposes.

Do notoperate theunit with thevalve closed.

Check the following matters before a test run after repairing piping.• Connect the pipes surely and there is no leak of refrigerant.• The valve is opened.Running the compressor under condition that the valve closes causes an abnormal high pressureresulted in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerantat connecting section of pipes, the air is sucked and causes further abnormal high pressure resulted inburst or injury.

Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. Itis dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electricshocks, injury, water leakage, noise and / or vibration may result.

Check the following items after reinstallation.1) The earth wire is correctly connected.2) The power cord is not caught in the product.3) There is no inclination or unsteadiness and the installation is stable.If check is not executed, a fire, an electric shock or an injury is caused.

When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air or other gas to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or other trouble.

Check afterreinstallation

When the service panel of the outdoor unit is to be opened in order for the compressor or the areaaround this part to be repaired immediately after the air conditioner has been shut down, set the circuitbreaker to the OFF position, and then wait at least 10 minutes before opening the service panel.If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipesand other parts will be very hot to the touch. In addition, before proceeding with the repair work, wearthe kind of insulated heat-resistant gloves designed to protect electricians.

Take care not to get burned by compressor pipes or other parts when checking the cooling cycle whilerunning the unit as they get heated while running. Be sure to put on gloves providing protection forelectric shock and heat.

When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter or theareas around these parts to be repaired immediately after the air conditioner has been shut down, set thecircuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor,inverter heat sink and other parts will be very hot to the touch.In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant glovesdesigned to protect electricians.

Cooling check

− 11 −

Installation

Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. Ifthe air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage,noise and/or vibration may result.

Before starting to install the air conditioner, read carefully through the Installation Manual, and follow itsinstructions to install the air conditioner.

Be sure to use the company-specified products for the separately purchased parts. Use of non-specified products may result in fire, electric shock, water leakage or other failure. Have the installationperformed by a qualified installer.

Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit.Capacity overflow may occur on the terminal block and may result in fire.

Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire.

Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas.If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.

If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes in contact with fire, noxious gas may be generated.

Install a circuit breaker that meets the specifications in the installation manual and the stipulations inthe local regulations and laws.

Install the circuit breaker where it can be easily accessed by the qualified service person (*1).

If you install the unit in a small room, take appropriate measures to prevent the refrigerant fromexceeding the limit concentration even if it leaks. Consult the dealer from whom you purchased the airconditioner when you implement the measures. Accumulation of highly concentrated refrigerant maycause an oxygen deficiency accident.

Do not place any combustion appliance in a place where it is directly exposed to the wind of airconditioner, otherwise it may cause imperfect combustion.

Explanations given to userIf you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuitbreaker to the OFF position, and contact a qualified service person to have the repairs done.Do not set the circuit breaker to the ON position until the repairs are completed.

Relocation• Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner.

It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,injury, water leakage, noise and / or vibration may result.

• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating willcause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,and possibly resulting in reputing, injury, etc.

(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person”

− 12 −

Declaration of ConformityManufacturer: TOSHIBA CARRIER (THAILAND) CO., LTD.

144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road,Amphur Muang, Pathumthani 12000, Thailand

Outdoor unit<Heat Pump Model> MMY-MAP0806HT8(J)P-E, MMY-MAP1006HT8(J)P-E, MMY-MAP1206HT8(J)P-E, MMY-MAP1406HT8(J)P-E, MMY-MAP1606HT8(J)P-E, MMY-MAP1806HT8(J)P-E, MMY-MAP2006HT8(J)P-E, MMY-MAP2206HT8(J)P-E

MMY-MAP0806HT8(J)P-TR,MMY-MAP1006HT8(J)P-TR,MMY-MAP1206HT8(J)P-TR,MMY-MAP1406HT8(J)P-TR,MMY-MAP1606HT8(J)P-TR,MMY-MAP1806HT8(J)P-TR,MMY-MAP2006HT8(J)P-TR,MMY-MAP2206HT8(J)P-TR

Toshiba EMEA Engineering DirectorToshiba Carrier UK Ltd.Porsham Close, Belliver Industrial Estate,PLYMOUTH, Devon, PL6 7DB.United Kingdom

Authorized Representative / Nick Ball

TCF holder:

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type:

Commercial name: Super Modular Multi System Air Conditioner

Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulationstransposing into national law

Complies with the provisions of the following harmonized standard:EN 378-2: 2008+A2:2012

NOTEThis declaration becomes invalid if technical or operational modifications are introduced without themanufacturer’s consent.

<Cooling Only Model> MMY-MAP0806T8(J)P-E, MMY-MAP1006T8(J)P-E, MMY-MAP1206T8(J)P-E, MMY-MAP1406T8(J)P-E, MMY-MAP1606T8(J)P-E, MMY-MAP1806T8(J)P-E, MMY-MAP2006T8(J)P-E, MMY-MAP2206T8(J)P-E

− 13 −

Specifications

Cooling HeatingMMY-MAP0806HT8(J)PMMY-MAP0806HT7(J)PMMY-MAP0806HT8(J)PMEMMY-MAP0806HT7P-ME

MMY-MAP1006HT8(J)PMMY-MAP1006HT7(J)PMMY-MAP1006HT8(J)PMEMMY-MAP1006HT7P-ME






MMY-MAP2206HT8(J)PMMY-MAP2206HT7(J)P

370

370

370

299

299

242

8381

82 84

83 84

80 82

80 82

81 83

242

242

Sound power level (dBA)Weight (kg)Model

74 74

74 74

MMY-MAP0806HT8P-A

MMY-MAP1006HT8P-A

MMY-MAP1206HT8P-A

MMY-MAP1406HT8P-A

MMY-MAP1606HT8P-A

MMY-MAP1806HT8P-A

MMY-MAP2006HT8P-A

− 14 −

Specifications

Cooling HeatingMMY-MAP0806HT8(J)P-EMMY-MAP0806HT8(J)P-TRMMY-MAP0806T8(J)P-E - 241MMY-MAP1006HT8(J)P-EMMY-MAP1006HT8(J)P-TRMMY-MAP1006T8(J)P-E - 241MMY-MAP1206HT8(J)P-EMMY-MAP1206HT8(J)P-TRMMY-MAP1206T8(J)P-E - 241MMY-MAP1406HT8(J)P-EMMY-MAP1406HT8(J)P-TRMMY-MAP1406T8(J)P-E - 299MMY-MAP1606HT8(J)P-EMMY-MAP1606HT8(J)P-TRMMY-MAP1606T8(J)P-E - 299MMY-MAP1806HT8(J)P-EMMY-MAP1806HT8(J)P-TRMMY-MAP1806T8(J)P-E - 370MMY-MAP2006HT8(J)P-EMMY-MAP2006HT8(J)P-TRMMY-MAP2006T8(J)P-E - 370MMY-MAP2206HT8(J)P-EMMY-MAP2206HT8(J)P-TRMMY-MAP2206T8(J)P-E - 370

80

Model Sound power level (dBA) Weight (kg)

24274

300

24280

74 242

74

74

82

82

83

83

84

81

37183 84

371

37181

82

300

− 15 −

− 16 −

Specifications

Model Sound power level (dBA) Weight (kg)

MMY-MAP0806T8(J)PMMY-MAP0806T7(J)PMMY-MAP0806T8P-SGMMY-MAP0806T8(J)P-IDMMY-MAP0806T8(J)P-TMMY-MAP1006T8(J)PMMY-MAP1006T7(J)PMMY-MAP1006T8P-SGMMY-MAP1006T8(J)P-IDMMY-MAP1006T8(J)P-TMMY-MAP1206T8(J)PMMY-MAP1206T7(J)PMMY-MAP1206T8P-SGMMY-MAP1206T8(J)P-IDMMY-MAP1206T8(J)P-TMMY-MAP14B6T8(J)PMMY-MAP14B6T7(J)PMMY-MAP14B6T8P-SGMMY-MAP14B6T8(J)P-IDMMY-MAP14B6T8(J)P-TMMY-MAP1406T8(J)PMMY-MAP1406T7(J)PMMY-MAP1406T8P-SGMMY-MAP1406T8(J)P-IDMMY-MAP1406T8(J)P-TMMY-MAP1606T8(J)PMMY-MAP1606T7(J)PMMY-MAP1606T8P-SGMMY-MAP1606T8(J)P-IDMMY-MAP1606T8(J)P-TMMY-MAP18B6T8(J)PMMY-MAP18B6T7(J)PMMY-MAP18B6T8P-SGMMY-MAP18B6T8(J)P-IDMMY-MAP18B6T8(J)P-TMMY-MAP1806T8(J)PMMY-MAP1806T7(J)PMMY-MAP1806T8P-SGMMY-MAP1806T8(J)P-IDMMY-MAP1806T8(J)P-TMMY-MAP2006T8(J)PMMY-MAP2006T7(J)PMMY-MAP2006T8P-SGMMY-MAP2006T8(J)P-IDMMY-MAP2006T8(J)P-TMMY-MAP2206T8(J)PMMY-MAP2206T7(J)PMMY-MAP2206T8P-SGMMY-MAP2206T8(J)P-IDMMY-MAP2206T8(J)P-T

82

83 369

240

240

298

369

369

298

240

240

298

74

74

80

81

81

80

80

81

CARRYING IN THE OUTDOOR UNIT

CAUTION

Handle the outdoor unit carefully, observing the following items.• When using a forklift or other machinery for loading/unloading in transportation, insert the fork of the forklift

into the rectangular holes for handling as shown below.• When lifting up the unit, insert a rope able to bear the unit’s weight into the rectangular holes for handling, and

tie the unit from 4 sides.(Apply padding in positions where the rope comes into contact with the outdoor unit so that no damage is causedto the outer surface of the outdoor unit.)(There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)

Front /Back

GOOD NO GOOD NO GOOD

Plaster board

Rope

Plaster board

Rectangular Reinforcing plate

Fork of the forklift

Rectangularholes forhandling

GOOD

NO GOOD

Side

holes for lifting

− 17 −

Weight centre

No. Model type X (mm) Y (mm) Z (mm)

MMY-MAP0806(H)T*(J)P*

A MMY-MAP1006(H)T*(J)P* 510 355 600MMY-MAP1206(H)T*(J)P*MMY-MAP14B6T*(J)P*MMY-MAP1406(H)T*(J)P*

B MMY-MAP1606(H)T*(J)P* 595 360 690MMY-MAP18B6T*(J)P*MMY-MAP1806(H)T*(J)P*

C MMY-MAP2006(H)T*(J)P* 790 360 710MMY-MAP2206(H)T*(J)P*

(Unit : mm)

A. Anchor bolt position700

Anch

or b

olt p

ositi

on75

5

Y

B. Anchor bolt position920

Anch

or b

olt p

ositi

on75

5

Y

C. Anchor bolt position1310

Anch

or b

olt p

ositi

on75

5

YZ

XZ

X

Z

X

− 18 −

SELECTION OF PIPE SIZECoupling size of brazed pipe

(Unit: mm)

Screw size and tightening torque

Connected section

External size Internal size

Standard outer dia. of connected copper pipe

Connected section

Min. thickness of coupling

External size Internal sizeMin. depth of

insertion Oval value Standard outer dia. (Allowable difference)

C F K G

6.35 6.35 (±0.03) 6.45 ( ) 7 6 0.06 or less 0.50

9.52 9.52 (±0.03) 9.62 ( ) 8 7 0.08 or less 0.60

12.70 12.70 (±0.03) 12.81 ( ) 9 8 0.10 or less 0.70

15.88 15.88 (±0.03) 16.00 ( ) 9 8 0.13 or less 0.80

19.05 19.05 (±0.03) 19.19 ( ) 11 10 0.15 or less 0.80

22.22 22.22 (±0.03) 22.36 ( ) 11 10 0.16 or less 0.82

28.58 28.58 (±0.04) 28.75 ( ) 13 12 0.20 or less 1.00

34.92 34.90 (±0.04) 35.11 ( ) 14 13 0.25 or less 1.20

38.10 38.10 (±0.05) 38.31 ( ) 15 14 0.27 or less 1.26

41.28 41.28 (±0.05) 41.50 ( ) 15 14 0.28 or less 1.35

Screw sizeTightening torque

(N•m)

0.3 ot 5.26Mlanimret ylppus rewoP

6.6 ot 5.58Mwercs htraE

1.2 to 1.45.3Mlanimret eriw noitacinummoC

K

ØC

G

ØF

+0.04-0.02

+0.04-0.02

+0.04-0.02

+0.04-0.02

+0.03-0.03

+0.03-0.03

+0.06-0.02

+0.04-0.04

+0.08-0.02

+0.08-0.02

− 19 −

Adding refrigerant After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.

Calculation of additional refrigerant charge amount Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site.For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.

NOTE

If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without additional refrigerant.

Table 1-1;; For HT8P, HT7P model

System Charged refrigerant Compensationby System HP

HP kg kg8 8 - - 11.5 -3.510 10 - - 11.5 -3.512 12 - - 11.5 -1.514 14 - - 11.5 -1.016 16 - - 11.5 -0.518 18 - - 11.5 1.520 20 - - 11.5 1.522 22 - - 11.5 1.524 12 12 - 23 -3.026 14 12 - 23 -2.528 16 12 - 23 -2.030 16 14 - 23 -1.532 16 16 - 23 -1.034 18 16 - 23 1.036 20 16 - 23 1.038 22 16 - 23 1.040 20 20 - 23 3.042 22 20 - 23 3.044 22 22 - 23 3.046 16 16 14 34.5 -6.548 16 16 16 34.5 -6.550 18 16 16 34.5 -0.552 20 16 16 34.5 -0.554 22 16 16 34.5 -0.556 20 20 16 34.5 2.558 22 20 16 34.5 2.560 22 22 16 34.5 2.520 10 10 - 23 -7.022 12 10 - 23 -7.036 12 12 12 34.5 -12.538 14 12 12 34.5 -10.540 14 14 12 34.5 -8.542 14 14 14 34.5 -4.544 16 14 14 34.5 -4.554 20 20 14 34.5 1.5

High efficiency model

Combination

HP

Standard model

Additional refrigerant charge amount at site = [1] + [2] + [3] [1]. Compensation by system HP (Table 1-1~1-5) [2]. Additional refrigerant charge amount Indoor unit (Table 2) [3]. (Real length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 m (Table 3) ) × 1.2

Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160 MAP180 MAP200 MAP220Charged amount (kg) 11.5

− 20 −

Outdoor unit type MAP080 MAP100 MAP120 MAP14B MAP140 MAP160 MAP18B MAP180 MAP200 MAP220 Charged amount (kg) 11.5

Cooling only model

10.5

HP kg kg

8 8 11.5 -3.5

10 10 11.5 -3.5

12 12 11.5 -1.5

14 14 11.5 -1.016 16 11.5 -0.5

18 18 11.5 1.5

20 20 11.5 1.5

22 12 10 23 -7.024 12 12 23 -3.026 14 12 23 -2.528 14 14 23 -3.030 16 14 23 -1.532 16 16 23 -1.034 18 16 23 1.036 18 18 23 3.038 20 18 23 3.040 20 20 23 3.042 14 14 14 34.5 -4.5

44 16 14 14 34.5 -4.5

46 16 16 14 34.5 -6.5

48 16 16 16 34.5 -6.5

50 18 16 16 34.5 -0.5

52 18 18 16 34.5 1.5

54 20 20 14 34.5 1.5

56 20 20 16 34.5 2.5

Standard model

HP

Compesation by

System HPSystem Combination Charged refrigerant

Table1-2 ； For HT8P-ME, HT7P-ME model

− 21 −

System Combination Charged refrigerant (kg) Compensation bySystem HP

HP HP Heat pump type Cooling only type kg

Standard model

8 8 – – 11.5 10.5 -3.510 10 – – 11.5 10.5 -3.512 12 – – 11.5 10.5 -1.514 14 – – 11.5 11.5 -1.016 16 – – 11.5 11.5 -0.518 18 – – 11.5 11.5 1.520 20 – – 11.5 11.5 1.522 22 – – 11.5 11.5 1.524 12 12 – 23 21 -3.026 14 12 – 23 22 -2.528 16 12 – 23 22 -2.030 16 14 – 23 23 -1.532 16 16 – 23 23 -1.034 18 16 – 23 23 1.036 20 16 – 23 23 1.038 22 16 – 23 23 1.040 20 20 – 23 23 3.042 22 20 – 23 23 3.044 22 22 – 23 23 3.046 16 16 14 34.5 34.5 -6.548 16 16 16 34.5 34.5 -6.550 18 16 16 34.5 34.5 -0.552 20 16 16 34.5 34.5 -0.554 22 16 16 34.5 34.5 -0.556 20 20 16 34.5 34.5 2.558 22 20 16 34.5 34.5 2.560 22 22 16 34.5 34.5 2.5


20 10 10 – 23 21 -7.022 12 10 – 23 21 -7.036 12 12 12 34.5 31.5 -12.538 14 12 12 34.5 32.5 -10.540 14 14 12 34.5 33.5 -8.542 14 14 14 34.5 34.5 -4.544 16 14 14 34.5 34.5 -4.554 20 20 14 34.5 34.5 1.5

Table1-3 ； For HT8P-E, T8P-E, HT8P-TR model

System Combination Charged refrigerant Compensation by System HP

HP HP kg kg

Standard model

8 8 – – 11.5 -3.510 10 – – 11.5 -3.512 12 – – 11.5 -1.514 14 – – 11.5 -1.016 16 – – 11.5 -0.518 18 – – 11.5 1.520 20 – – 11.5 1.522 12 10 – 23 -7.024 12 12 – 23 -3.026 14 12 – 23 -2.528 16 12 – 23 -2.030 16 14 – 23 -1.532 16 16 – 23 -1.034 18 16 – 23 1.036 20 16 – 23 1.038 20 18 – 23 3.040 20 20 – 23 3.042 16 14 12 34.5 -6.544 16 16 12 34.5 -6.546 16 16 14 34.5 -6.548 16 16 16 34.5 -6.550 18 16 16 34.5 -0.552 20 16 16 34.5 -0.554 20 20 14 34.5 1.556 20 20 16 34.5 2.5


20 10 10 – 23 -7.036 12 12 12 34.5 -12.538 14 12 12 34.5 -10.540 14 14 12 34.5 -8.5

Table1-4 ； For HT8P-A model

System Combination Charged refrigerant Compensation bySystem HP

HP HP kg kg

Space saving

8 8 - - 10.5 -2.510 10 - - 10.5 -2.512 12 - - 10.5 -0.5

14B 14B - - 10.5 -0.516 16 - - 11.5 -0.5

18B 18B - - 11.5 -0.520 20 - - 11.5 1.522 22 - - 11.5 1.524 12 12 - 21.0 -5.026 14B 12 - 21.0 -5.028 14B 14B - 21.0 -5.030 16 14B - 22.0 -4.032 16 16 - 23.0 -3.034 18B 16 - 23.0 -3.036 18B 18B - 23.0 -3.038 22 16 - 23.0 0.040 22 18B - 23.0 0.042 22 20 - 23.0 3.044 22 22 - 23.0 3.046 16 16 14B 33.5 -5.548 16 16 16 34.5 -4.550 18B 16 16 34.5 -4.552 18B 18B 16 34.5 -4.554 18B 18B 18B 34.5 -4.556 20 18B 18B 34.5 -1.558 22 18B 18B 34.5 -1.560 22 22 16 34.5 1.5

High Efficiency /

High Diversity

8 8 - - 10.5 -2.510 10 - - 10.5 -2.512 12 - - 10.5 -0.514 14 - - 11.5 -1.016 16 - - 11.5 -0.518 18 - - 11.5 1.520 10 10 - 21.0 -5.022 12 10 - 21.0 -5.024 12 12 - 21.0 -5.026 14 12 - 22.0 -4.028 14 14 - 23.0 -3.030 16 14 - 23.0 -3.032 16 16 - 23.0 -3.034 18 16 - 23.0 0.036 12 12 12 31.5 -7.538 14 12 12 32.5 -6.540 14 14 12 33.5 -5.542 14 14 14 34.5 -4.544 16 14 14 34.5 -4.546 16 16 14 34.5 -4.548 16 16 16 34.5 -4.550 18 16 16 34.5 -1.552 20 16 16 34.5 -1.554 20 20 14 34.5 1.556 20 20 16 34.5 1.558 22 20 16 34.5 1.560 22 22 16 34.5 1.5

Table1-5 ； T8P, T7P, T8P-SG, T8P-ID, T8P-T model

− 22 −

− 23 −

Table 3Pipe dia. at liquid side mm ø6.4 ø9.5 ø12.7 ø15.9 ø19.0 ø22.2Additional refrigerant amount/1m kg/m 0.025 0.055 0.105 0.160 0.250 0.350

Charging of refrigerant• Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the

liquid side.• If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and

gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gasside. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.

• The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

Table 2

Additional refrigerant charge amount Indoor unit Standard Indoor unit

Fresh Air Intake

Indoor Unit

Air to Air Heat exchanger with

DX-coilAddition kg/HP 0.4 0.2 0.2

This air conditioner adopts a HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to refrigerant (R410A)The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service(1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them.

(2) As the use pressure of the refrigerant (R410A) is high, use material thickness of the pipe and tools which are specified for R410A.

(3) In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes.Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

(4) For the earth protection, use a vacuum pump for air purge.(5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant.

(If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner change.)

3. Pipe MaterialsFor the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum.

(1) Copper pipe

(2) JointThe flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation of the air conditioner. However clear impurities when using them.

<Piping>The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

<Flare nut>Use the flare nuts which are attached to the air conditioner unit.

Refrigerant (R410A)

− 24 −

4. Tools(1) Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)3) Tools commonly used for R410A and for conventional refrigerant (R22)The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)Explanation of symbols

: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.) : Former tool is available.

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are

necessary.(Note 2) Charging cylinder for R410A is being currently developed.

UsageUsed tools Proper use of tools/parts

Gauge manifold Vacuuming, charging refrigerant and operation check

Exclusive to R410A

Exclusive to R410ACharging hose

Charging cylinder Charging refrigerant Unusable (Use the Refrigerant charging balance.)

Gas leak detector Checking gas leak Exclusive to R410A

Vacuum pump Vacuum drying Usable if a counter-flow preventive adapter is attached

R22 (Existing article)Vacuum dryingVacuum pump with counterflow

Usable by adjusting sizeFlare processing of pipesFlare tool

R22 (Existing article)Bending processing of pipesBender

Refrigerant recovery device Recovering refrigerant Exclusive to R410A

Torque wrench Tightening flare nut Exclusive to Ø12.7mm and Ø15.9mm

R22 (Existing article)Cutting pipesPipe cutter

Refrigerant canister Charging refrigerantExclusive to R410AEnter the refrigerate name for identification

Brazing machine/Nitrogen gas cylinder

R22 (Existing article)Brazing of pipes

Refrigerant charging balance Charging refrigerant R22 (Existing article)

General tools (Conventional tools can be used.)In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.(1) Vacuum pump

Use vacuum pump by attaching vacuum pump adapter.

(2) Torque wrench (3) Pipe cutter(4) Reamer(5) Pipe bender (6) Level vial

(7) Screwdriver (+, –)(8) Spanner or Monkey wrench(9) Hole core drill(10)Hexagon wrench (Opposite side 4mm)(11)Tape measure(12)Metal saw

Also prepare the following equipments for other installation method and run check.(1) Clamp meter (2) Thermometer

(3) Insulation resistance tester(4) Electroscope

− 25 −

1 Wiring Diagrams1-1. Outdoor UnitModels: MMY-MAP0806*, MAP1006*, and MAP1206*

− 26 −

415V

3NP

OW

ER

SU

PP

LY50

Hz

380

up to

four

pie

ces.

*1MC

C-1

659

MC

C-1

673

TB

1

TB

2

Mg-

CTT

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se fi

lter P

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oard

s ar

e in

stal

led

on a

bac

kof

term

inal

blo

ck.

Par

ts lay

out

MC

C-1

669

(CM

1)

MC

C-1

669

(CM

2)

L2L3

N

L1

Rot

ary

switc

hP

ush

butto

n sw

itch

2-w

ay v

alve

coi

l

Acc

umul

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cas

e he

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Rea

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for c

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t con

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sens

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Pre

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(Low

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(Mai

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63H

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1

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SW

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W02

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W04

,SW

05,S

W15

SW

06,S

W07

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09,S

W10

SW

11,S

W12

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13,S

W14

FM

Par

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Rel

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Com

pres

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heat

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(MC

C-1

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(MC

C-1

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(MC

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2,F0

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CC

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bol

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C-1

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MC

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MC

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(Com

pres

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-

CN

14

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

50

CN

13

HEA

TER

1

A.H

EAT

ER

HE

ATE

R24W

V1

CN312 SV

41S

V42

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2L3

N

CN

-R

TB2

CN

01

CN

03

CN

300

Ｍ

5

PM

V1

CN

508

F01

F02

CN

530

4

(BLU)

CCNN331144((WWHHII))

(BLU

)

(RE

D)

CN

331(

WH

I)

CN

335(

GR

Y)

(RED

)(W

HI)

(WH

I)

(BLU

)

BLK

WH

IBL

K

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN19

CN20

CN213

CN212

CN211

4

+-

CN11

CN12

CN13

F01

F02

RED

WH

IB

LKM

CC-1

669(

1)

4

RED

WHI

BLK

(BLK) (R

ED)

1 21 26

24

31

(RE

D)

1 3

CN

304

CN

11

CN

12

WHIBLK

BLK BLK

WHI

RED

RB

6T3

4T23L2

5L3Mg-CTT

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IBL

KB

LK

U

UUU

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

GR

Y

A1

RED

A2Co

ilM

g-CT

T

GR

Y

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RED

2T11L1CN31 CN41

RED

L1

4

SW

30

4 4SW

16

SW11

SW06

CN

509

Con

nect

or fo

r opt

iona

l P.C

.Boa

rd

(BLK

)

CN

23

CN

21

CN

903

TS3

(PU

R)

21t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

SV

52

34

PMV

4 5

CN

303

Ｍ (RED

)

62

43

1

A1 A2

MS

3

UV

WR

EDW

HI

BLK

L-CM

1

CN12

CN01

CN

902

TL3

(PN

K)

1 2t°

CN

851(

WH

I)1

23

4

U1U2

SU3

U4U5

U6S

CN

851

(RE

D)

CN

852(

WH

I)

2 3 4 5 2 3 4 5

2 3 4 5

F01

44

2 3 4 5

CN

332(

BLU

)

YEL

BLU

CN

23

CN

21

12

34

5

12

34

5

13

13

13

13

31

21

1 32 4

1 32 4

OFF

ONS

W80

0

OFF

ONS

W80

0

OFF

ON

12

SW

800

12

12

ＶＵ

Com

pres

sor t

erm

inal

Ｗ

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

NP

UR

:PU

RP

LE

Col

or in

dica

tion

SV

51

12

A.H

EA

TER

L-C

M1,

L-C

M2

Mg-

CTT

PD

PS

PM

V1

PM

V4

RB

SV

2,S

V3A

,SV

3B,S

V3C

SV

3D,S

V41

,SV

42,S

V51

SV

52

NFC

modu

le

60H

z 38

03N

*2

*2

The

inst

alla

tion

of th

e op

tiona

l boa

rd is

-E

,-TR

mod

el o

nly.

*3He

at p

ump

mod

el o

nly.

*3

Models: MMY-MAP1406* and MAP1606*

− 27 −

PO

WE

R S

UP

PLY

MC

C-1

659

MC

C-1

673

TB

1

TB

2

Mg-

CTT

*Noi

se fi

lter P

.C. b

oard

s ar

e in

stal

led

ona

back

of

term

inal

bloc

k.

Par

ts lay

out

MC

C-1

669

(C

M1)

MC

C-1

669

(C

M2)

L2L3

N

L1

The

inst

alla

tion

of th

e op

tiona

l boa

rd is

up

to fo

ur p

iece

s.*1

U1U2

SU3

U4U5

U6S

TB

3

CM

2

MS

3+

+

--

RE

DW

HI B

LKM

CC-1

669(

2)

SV

2

CN321 SV

3CS

V3B

CN

800

(Ser

vice

)S

WR

T

ON

1OF

F2

3 4

1SW12

ON OFF

SW17

23 4

SW

07

1

ON OFF

23 4

ON ONS

W13

OFF

ON

12

3 4

SW09

ON OFF 1

23 4

2SW

14

OFF 1

3 42SW

10

OFF 1

3 4

CN

511

CN

510

CN

512 FMM

S3

P>

63H

1

4

UV

W

CN301

CN

852

MCC

-165

9

CN322

SV

3AS

V3D

CN

101

CN

535

CN

851

CN

600

SW

04

SW

02D

600

D60

1D

602

SW

01

CN

30CN

31 CN

32

SW

03D

603

D60

4

SW

05S

W15

CN

523

CN

524

CN

902

CN

534

CN

505

CN

503

CN

507

CN

520

TK5

TK4

TL3

TL2

TL1

TE1

TOTS1

TD2

CN

501

CN

514

CN

513

PD 3

CN

502

CN

500

PS 3

31t°

TD1

UV

W

(WH

I)

(PN

K)

(WH

I)

(YE

L)

(GR

N)

(WH

I)

(GR

Y)

(PN

K)

(YE

L)

(RE

D)

5

31 21 1 21 221 1 31 331 21

CN311(WHI)

(WHI)

(WHI)

(BLU

)

(WH

I)(B

LU)

(GR

N)

(BLU

)(G

RN

)(R

ED

)(W

HI)

31

63

24

15

21

CN302

CN303

CN201

CN202

CN203

CN

305

RE

DW

HI

BLK

CN09

CN10

23

41

34

RE

DW

HI

BLK

t° t° t° t°t° t°t° t°t°

(BLU

)

(BLU

)

(RE

D)

CN

852(

WH

I)

(RE

D)

63H

2P

>

(RE

D)

CN

306

L-CM

2

*1

F01

F02CN03

CN02

CN01

CN10

2(B

LU)

CN10

2(W

HI)

CN

14

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

50

CN

13

HE

ATE

R1

A.H

EA

TER

HE

ATE

R24W

V1

SV

41S

V42

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2

PMV

3 5

CN

302

L3N

CN

01

CN

03

Ｍ

CN

300

Ｍ

5

PM

V1

CN

508

F01

F02

CN

530

4

CN312(BLU)

(BLU

)

(RE

D)

CN

331(

WH

I)

CN

335(

GR

Y)

(RE

D)

(WH

I)(B

LU)

(WH

I)

(BLU

)

BLK

WH

IB

LK

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN09

CN10

CN203

CN202

CN201

4

+-

CN01

CN02

CN03

F01

F02

CN

852CN

851

RE

DW

HI

BLK

MCC

-166

9(1)

4

RED

WHI

BLK

(BLK)

(RED)

(RE

D)

(WH

I)

1 21 26

24

31

62

43

1

(RE

D)

1 3

CN

304

CN

11

CN

12

WHIBLK

BLK BLK

WHI

RED

RB

6T3

4T23L2

5L3

Mg-CTT

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IB

LKB

LK

U

UUU

GR

Y

A1

RE

D

A2

Coil

Mg-

CTT

GR

Y

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RE

D 2T11L1CN31 CN41

RE

DL1

4

SW30

4 4S

W16

SW

11

SW

06

CN

509

Con

nect

or fo

r opt

iona

l P.C

.Boa

rd

(BLK

)

CN

903

TS3

(PU

R)

21t°

CN

521

TE2

(RE

D)

1 2t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

CN

525

TG1

(BLU

)21

t°

CN

526

TG2

(WH

I)21

t°

PM

V4 5

CN

303

Ｍ (RE

D)

62

43

1

A1 A2

MS

3

UV

WR

ED

WH

IB

LK

L-CM

1

CN12

CN01

CN

851(

WH

I)

12

34

CN

-R

TB2

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

2 23 34 45 5

2 3 4 51 3

F01

44

2 3 4 5

U1U2

SU3

U4U5

U6S

CN

332(

BLU

)

YEL

BLU

CN

23

CN

21

CN

23

CN

21

+-

13

13

13

13

12

34

5

12

34

5

1 3

1 2

1 32 4

1 2 3 4

OFF

ON

12

SW80

0

OFF

ONS

W80

0

12

OFF

ONS

W80

0

12

ＶＵ

Com

pres

sor t

erm

inal

Ｗ

RE

D:R

EDW

HI:W

HIT

EY

EL:

YE

LLO

WB

LU:B

LUE

BLK

:BLA

CK

GR

Y:G

RA

YP

NK

:PIN

KO

RN

:OR

AN

GE

BR

N:B

RO

WN

GR

N:G

RE

EN

PU

R:P

UR

PLE

Col

or in

dica

tion

Rot

ary

switc

hP

ush

butto

n sw

itch

2-w

ay v

alve

coi

l

Dip

sw

itch

63H

1,63

H2

CN

***

F01,

F02

PM

V4

CM

1,C

M2

4WV

1

CN

-R

SW

01,S

W02

,SW

03S

W04

,SW

05,S

W15

SW

06,S

W07

,SW

09,S

W10

SW

11,S

W12

,SW

13,S

W14

FM

Par

ts n

ame

4-w

ay v

alve

coi

lH

igh

pres

sure

sw

itch

Com

pres

sor

Rel

ay c

onne

ctor

Con

nect

orFu

se (C

ompr

esso

r)31

.5A

500

VFu

se (I

nter

face

) T6

.3A

250

VFu

se (N

oise

filte

r)T6

.3A

250

VFu

se (F

an)

6.3A

750

VD

CFa

n m

otor

PD

PS

HE

ATE

R1,

HE

ATE

R2

Com

pres

sor c

ase

heat

er

L-C

M1,

L-C

M2

A.H

EA

TER

(MC

C-1

669)

(MC

C-1

673)

F01,

F02

(MC

C-1

608A

)F0

1,F0

2,F0

3(M

CC

-165

9)

Symbol

MC

C-1

608B

MC

C-1

669

MC

C-1

608A

MC

C-1

659

MC

C-1

673

Par

ts n

ame

Inve

rter P

.C.B

oard

(Com

pres

sor)

Inte

rface

Con

trol P

.C.B

oard

Noi

se fi

lter P

.C.B

oard

AN

oise

filte

r P.C

.Boa

rd B

Inve

rter P

.C.B

oard

(Fan

)

P.C

.Boa

rd

Sym

bol

Mg-

CTT

RB

Rus

h cu

rren

t pro

tect

resi

stor

F01

PM

V3

PM

V1

Acc

umul

ator

cas

e he

ater

Rea

ctor

for c

ompr

esso

rM

agne

t con

tact

orP

ress

ure

sens

or (H

igh)

Pre

ssur

e se

nsor

(Low

)P

ulse

mot

or v

alve

(Mai

n)P

ulse

mot

or v

alve

(Sub

)P

ulse

mot

or v

alve

(Sub

coo

l)

SW

16,S

W17

,SW

30,S

W80

0TD

1,TD

2TE

1,TE

2TK

1,TK

2,TK

4,TK

5TL

1,TL

2,TL

3TO TS

1,TS

3TG

1,TG

2TB

1TB

2TB

3

Pipe

tem

p. s

enso

r (Di

scha

rge)

Heat

exc

hang

e te

mp.

sen

sor

Oil

tem

p. s

enso

rLi

quid

tem

p. s

enso

rA

ir te

mp.

sen

sor

Pip

e te

mp.

sen

sor (

Suc

tion)

Gas

tem

p. s

enso

r Te

rmin

al b

lock

(pow

er s

uppl

y)Te

rmin

al b

lock

(con

trol w

iring

)Te

rmina

l bloc

k(inte

rnal w

iring c

onne

ctor)

Term

inal

Con

nect

orP

.C.b

oard

Term

inal

blo

ck

Pro

tect

ive

earth

Fiel

d w

iring

CN

-R

SV

51S

V52

CN314(WHI)

43

21

SV2

,SV

3A,S

V3B

,SV

3CS

V3D

,SV

41,S

V42

,SV

51S

V52

NFC

modu

le

*2-E

,-TR

mod

el o

nly.

*2

50H

z 38

041

5V3N

60H

z 38

03N

*2

3He

at p

ump

mod

el o

nly.

*

*3 *3

*3

Models: MMY-MAP1806∗, MAP2006∗, and MAP2206∗

− 28 −

*Noi

se fi

lter P

.C. b

oard

s ar

e in

stal

led

ona

back

of

term

inal

blo

ck.

MC

C-1

659

(F

M1)

MC

C-1

673

TB

1

TB

2

Mg-

CTT(1

)

Par

ts lay

out MC

C-1

660

(C

M1)

MC

C-1

660

(C

M2)

L2L3

N

L1

MC

C-1

659

(F

M2)

MC

C-1

608A

(1)

MC

C-1

608B

(1)

U1U2

SU3

U4U5

U6S

Mg-

CTT(2

)

MC

C-1

608A

(2)

MC

C-1

608B

(2)

POW

ER

SU

PPL

Y

TB

3

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

NP

UR

:PU

RP

LE

Col

or in

dica

tion

CM

2

MS

3+

+

--MCC

-166

0(2)CN311

SV

2

CN321 SV

3CS

V3B

CN

800

(Ser

vice

)S

WR

T

ON

1OF

F2

3 4

1SW

12ON OF

F

SW17

23 4

SW

07

1

ON OFF

23 4

ON ONS

W13

OFF

ON

12

3 4

SW

09ON OF

F 12

3 4

2SW

14

OFF 1

3 42SW

10

OFF 1

3 4

CN

511

CN

510

CN

512 FM

1

MS

3

P>

63H

1

4

UV

W

CN301

+

CN

852

MCC

-165

9(1)

CN322

SV3A

SV3

D

CN

101

CN

535

CN

851

CN

600

SW

04

SW

02D

600

D60

1D

602

SW

01

CN

30CN

31 CN

32

SW

03D

603

D60

4

SW

05S

W15

CN

523

CN

524

CN

902

CN

534

CN

505

CN

503

CN

507

CN

520

TK5

TK4

TL3

TL2

TL1

TE1

TOTS1

TD2

CN

501

CN

514

CN

513

PD

3

CN

502

CN

500

PS 3

31t°

TD1

UV

W

(WH

I)

(PN

K)

(WH

I)

(YE

L)

(GR

N)

(WH

I)

(GR

Y)

(PN

K)

(YE

L)

(RE

D)

5

31 21 1 21 221 1 31 331 21

(WHI)

(WHI)

(WHI)

(BLU

)

(WH

I)(B

LU)

(GR

N)

(BLU

)(G

RN

)(R

ED

)(W

HI)

31

63

24

15

21

CN302

CN303

CN201

CN202

CN203

CN

305

RE

DW

HI

BLK

CN

852

CN09

CN10

RE

DW

HIB

LK

23

41

34

RE

DW

HI

BLK

t° t° t° t°t° t°t° t°t°

(BLU

)

(BLU

)

(RE

D)

(WH

I)

(RE

D)

63H

2P

>

(RE

D)

CN

306

L-CM

2

*1

F01

F02CN03

CN02

CN01

CN10

2(B

LU)

CN10

2(W

HI)

-

CN

15

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

331

CN

335

CN

50

CN

13

HE

ATE

R1

A.H

EA

TER

HE

ATE

R24W

V1

SV41

SV

42

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2

PM

V3 5

CN

302

L3N

CN

01

CN

03

Ｍ

CN

300

Ｍ

5

PM

V1

CN

508

F01

F02

CN

530

4CN312(BLU)

(BLU

)

(RE

D)

(WH

I)

(GR

Y)

(RE

D)

(WH

I)(B

LU)

(WH

I)

(BLU

)

GRY

WH

IB

LK

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN09

CN10

CN203

CN202

CN201

4

+-

CN01

CN02

CN03

F01

F02

CN

852CN

851

MCC

-166

0(1) 4

RE

DW

HI

BLK

REDWHI

BLK

(BLK)

(RED)

(RE

D)

(WH

I)

1 21 26

24

31

62

43

1

(RE

D)

1 3

CN

304

CN

11

CN

12

WHIBLK

BLK

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IB

LKB

LK

U

UUU

GR

Y

RE

DA

1 A2

Coil

Mg-C

TT1

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RE

D CN31 CN41

RE

DL1

4

SW

30

4 4SW

16

SW

11

SW

06

CN

509

Con

nect

or fo

r opt

iona

l P.C

.Boa

rd

(BLK

)

CN

903

TS3

(PU

R)

21t°

CN

521

TE2

(RE

D)

1 2t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

CN

525

TG1

(BLU

)21

t°

CN

526

TG2

(WH

I)21

t°

PMV

4 5

CN

303

Ｍ (RE

D)

62

43

1 MS

3

UV

WR

ED

WH

IB

LK

L-CM

1

A1 A2

Coil

Mg-C

TT2

RB

6T3

4T2

3L2

5L3

Mg-CTT

2T1

1L1

CN

15

MC

C-1

608B

CN

13

RED

WHI

BLK

CN

11

CN

12

BLK

CN32

CN33

CN

34

CN42

CN43

WH

IB

LKBL

K

CN31 CN41

RED

FM2

MS

3

UV

W

CN301

+

CN

852

MCC

-165

9(2)

CN

100

CN302

CN303

RE

DW

HI

BLK

(YE

L)

(RE

D)

-

CN

851

(RE

D)

CN

100

(YE

L)

CN01

CN12

CN04

MC

C-1

608A

Mg-CTT(2)

N/F

(A)2

N/F

(B)2

N/F

(A)1

N/F

(B)1

CN04

RB

6T3

4T2

3L2

5L3

Mg-CTT

2T1

1L1

Mg-CTT(1)

CN01

CN12

2 3 4 5

5 54 433 2

2 23 34 45 5

CN

851(

WH

I)

12

34

CN

-R

TB2

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

3 4 51 3

31

F01

F01

3

44

1 3

U1U2

SU3

U4U5

U6S

CN

332(

BLU

)

CLA

MP

FILT

ER

*21

YEL

BLU

YEL

BLU

CN

22

CN

21

CN

22

CN

21

CN

23

CN

23

12

34

5

12

45

1 2 3 4 1 3

1 2 3 4

1 2

13

13

13

13

3

OFF

ON

12

SW

800

OFF

ON

12

SW

800

OFF

ON

12

SW

800

OFF

ON

12

SW

800

ＶＵ

Com

pres

sor t

erm

inal

Ｗ

Rot

ary

switc

hPu

sh b

utto

n sw

itch

2-w

ay v

alve

coi

l

Dip

sw

itch

63H

1,63

H2

CN

***

F01,

F02

CM

1,C

M2

SW

16,S

W17

,SW

30,S

W80

0TD

1,TD

2TE

1,TE

2TK

1,TK

2,TK

4,TK

5TL

1,TL

2,TL

3TO TS

1,TS

3TG

1,TG

2

4WV

1

CN

-R

SW

01,S

W02

,SW

03S

W04

,SW

05,S

W15

SW

06,S

W07

,SW

09,S

W10

SW

11,S

W12

,SW

13,S

W14

FM1,

Parts

nam

e4-

way

val

ve c

oil

Hig

h pr

essu

re s

witc

hC

ompr

esso

rR

elay

con

nect

orC

onne

ctor

Fuse

(Com

pres

sor)

40A

500

VFu

se (I

nter

face

) T6

.3A

250

VFu

se (N

oise

filte

r)T6

.3A

250

VFu

se (F

an)

6.3A

750

VD

CFa

n m

otor

HE

ATE

R1,

HE

ATE

R2

Com

pres

sor c

ase

heat

er

(MC

C-1

660)

(MC

C-1

673)

F01,

F02

(MC

C-1

608A

)F0

1,F0

2,F0

3(M

CC

-165

9)

Symbol

MC

C-1

608B

MC

C-1

660

MC

C-1

608A

MC

C-1

659

MC

C-1

673

Par

ts n

ame

Inve

rter P

.C.B

oard

(Com

pres

sor)

Inte

rface

Con

trol P

.C.B

oard

Noi

se fi

lter P

.C.B

oard

AN

oise

filte

r P.C

.Boa

rd B

Inve

rter P

.C.B

oard

(Fan

)

P.C

.Boa

rd

Sym

bol

Rus

h cu

rrent

pro

tect

resi

stor

Term

inal

Con

nect

orP

.C.b

oard

Term

inal

blo

ck

Pro

tect

ive

earth

Fiel

d w

iring

F01

FM2

CN

-R

Accu

mul

ator

cas

e he

ater

Rea

ctor

for c

ompr

esso

rM

agne

t con

tact

orPr

essu

re s

enso

r (H

igh)

Pres

sure

sen

sor (

Low

)Pu

lse

mot

or v

alve

(Mai

n)Pu

lse

mot

or v

alve

(Sub

)P

ulse

mot

or v

alve

(Sub

coo

l)

TB1

TB2

TB3

Pipe

tem

p. s

enso

r (Di

scha

rge)

Heat

exc

hang

e te

mp.

sen

sor

Oil

tem

p. s

enso

rLi

quid

tem

p. s

enso

rAi

r tem

p. s

enso

rPi

pe te

mp.

sen

sor (

Suc

tion)

Gas

tem

p. s

enso

rTe

rmin

al b

lock

(pow

er s

uppl

y)Te

rmin

al b

lock

(con

trol w

iring

)Te

rmina

l bloc

k(inte

rnal w

iring c

onne

ctor)

1 T

he in

stal

latio

n of

the

optio

nal b

oard

is u

p to

four

pie

ces.

* *2In

stal

l the

atta

ched

Cla

mp

filter

on-

site.

SV51

SV

52

CN314(WHI)

43

21

A.H

EATE

RL-

CM

1,L-

CM

2M

g-C

TT1,

Mg-

CTT

2P

DP

SP

MV

1P

MV3

PM

V4R

BS

V2,

SV

3A,S

V3B

,SV

3CS

V3D

,SV

41,S

V42

,SV

51S

V52

NFC

modu

le

*3-E

,-TR

mod

el o

nly.

*4He

at p

ump

mod

el o

nly.

*3*3

*4*4

*4

50H

z 38

041

5V3N

60H

z 38

03N

Models: MMY-MAP0806HT8P-A, MAP1006HT8P-A and MAP1206HP8P-AP

OW

ER

SU

PP

LY

Rot

ary

switc

hP

ush

butto

n sw

itch

2-w

ay v

alve

coi

l

Acc

umul

ator

cas

e he

ater

Rea

ctor

for c

ompr

esso

rM

agne

t con

tact

orP

ress

ure

sens

or (H

igh)

Pre

ssur

e se

nsor

(Low

)P

ulse

mot

or v

alve

(Mai

n)

Dip

sw

itch

63H

1,63

H2

CN

***

F01,

F02

A.H

EA

TER

L-C

M1,

L-C

M2

Mg-

CTT

PD

PS

PM

V1

PM

V4

RB

SV

2,S

V3A

,SV

3B,S

V3C

SV

3D,S

V41

,SV

42,S

V52

CM

1,C

M2

4WV

1

CN

-R

SW

01,S

W02

,SW

03S

W04

,SW

05,S

W15

SW

06,S

W07

,SW

09,S

W10

SW

11,S

W12

,SW

13,S

W14

FM

Par

ts n

ame

4-w

ay v

alve

coi

lH

igh

pres

sure

sw

itch

Com

pres

sor

Rel

ay c

onne

ctor

Con

nect

orFu

se (C

ompr

esso

r)31

.5A

500

VFu

se (I

nter

face

) T6

.3A

250

VFu

se (N

oise

filte

r)T6

.3A

250

VFu

se (F

an)

6.3A

750

VD

CFa

n m

otor

HE

ATE

R1,

HE

ATE

R2

Com

pres

sor c

ase

heat

er

(MC

C-1

669)

(MC

C-1

673)

F01,

F02

(MC

C-1

608A

)F0

1,F0

2,F0

3(M

CC

-165

9)

SW

16,S

W17

,SW

30,S

W80

0TD

1,TD

2TE

1TK

1,TK

2,TK

4,TK

5TL

1,TL

3TO TS

1,TS

3Sym

bol

MC

C-1

608B

MC

C-1

669

MC

C-1

608A

MC

C-1

659

MC

C-1

673

P.C

.Boa

rd

Sym

bol

Pul

se m

otor

val

ve (S

ub c

ool)

Rus

h cu

rren

t pro

tect

resi

stor

F01

CM

2

MS

3+

+

--

RED

WH

I BLK

MCC

-166

9(2)

SV

2

CN321 SV

3CS

V3B

CN

800

(Ser

vice

)S

WR

T

ON

1OF

F2

3 4

1SW

12ON OF

F

SW

17

23 4

SW

07

1

ON OFF

23 4

ON ONSW

13

OFF

ON

12

3 4

SW

09ON OF

F 12

3 4

2SW14

OFF 1

3 42SW

10

OFF 1

3 4

CN

511

CN

510

CN

512 FMM

S3

P>

63H

1

4

UV

W

CN301

+

CN

852

MCC

-165

9

CN322

SV

3ASV

3D

CN

101

CN

535

CN

851

CN

600

SW

04

SW

02D

600

D60

1D

602

SW

01

CN

30CN

31 CN

32

SW

03D

603

D60

4

SW05

SW

15

CN

523

CN

534

CN

505

CN

503

CN

507

CN

520

TK5

TK4

TL1

TE1

TOTS1

TD2

CN

501

CN

514

CN

513

PD 3

CN

502

CN

500

PS 3

31t°

TD1

UV

W

(WH

I)

(PN

K)

(WH

I)

(YE

L)

(GR

N)

(WH

I)

(YE

L)

(RE

D)

5

31 21 1 21 221 1 3 21

CN311(WHI)

(WHI)

(WHI)

(BLU

)

(WH

I)(B

LU)

(GR

N)

(BLU

)(G

RN

)(R

ED

)(W

HI)

31

63

24

15

21

CN302

CN303

CN211

CN212

CN213

CN

305

RE

DW

HI

BLK

CN19

CN20

23

41

34

RE

DW

HI

BLK

t° t° t° t°t° t°t°

(BLU

)

(BLU

)(R

ED

)

CN

852(

WH

I)

(RE

D)

63H

2P

>

(RE

D)

CN

306

L-CM

2

F01

F02CN13

CN12

CN11

CN10

2(B

LU)

CN10

2(W

HI)

-

CN

14

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

50

CN

13

HE

ATER

1

A.H

EAT

ER

HE

ATE

R24W

V1

CN312 SV41

SV

42

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2L3

N

CN

-R

TB2

CN

01

CN

03

CN

300

Ｍ

5

PMV

1

CN

508

F01

F02

CN

530

4

(BLU)

CCNN331144((WWHHII))

(BLU

)

(RED

)

CN

331(

WH

I)

CN

335(

GR

Y)

(RE

D)

(WH

I)

(WH

I)

(BLU

)

BLK

WH

IB

LK

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN19

CN20

CN213

CN212

CN211

4

+-

CN11

CN12

CN13

F01

F02

RED

WH

IBL

KM

CC-1

669(

1)

4

RED

WHI

BLK

(BLK) (R

ED)

1 21 26

24

31

(RE

D)

1 3

CN

304

CN

11

CN

12

WHIBLK

BLK BLK

WHI

RED

RB

6T3

4T23L2

5L3Mg-CTT

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IBL

KB

LK

U

UUU

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

GR

Y

A1

RE

D

A2

Coil

Mg-

CTT

GR

Y

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RE

D 2T11L1CN31 CN41

RE

DL1

4

SW

30

4 4S

W16

SW

11

SW

06

CN

509

(BLK

)

CN

23

CN

21

CN

903

TS3

(PU

R)

21t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

SV5

2

34

PM

V4 5

CN

303

Ｍ (RED

)

62

43

1

A1 A2

MS

3

UV

WR

ED

WH

IB

LK

L-CM

1

CN12

CN01

CN

902

TL3

(PN

K)

1 2t°

CN

851(

WH

I)1

23

4

U1U2

SU3

U4U5

U6S

CN

851

(RE

D)

CN

852(

WH

I)

2 3 4 5 2 3 4 5

2 3 4 5

F01

44

2 3 4 5

CN

332(

BLU

)

YEL

BLU

CN

23

CN

21

12

34

5

12

34

5

13

13

13

13

31

21

1 32 4

1 32 4

OFF

ONS

W80

0

OFF

ONSW

800

OFF

ON

12

SW

800

12

12

*1C

onne

ctor

for o

ptio

nal P

.C.B

oard

MC

C-1

653

Par

ts n

ame

Inve

rter P

.C.B

oard

(Com

pres

sor)

Inte

rface

Con

trol P

.C.B

oard

Noi

se fi

lter P

.C.B

oard

AN

oise

filte

r P.C

.Boa

rd B

Inve

rter P

.C.B

oard

(Fan

)D

eman

d P

.C.B

oard

Term

inal

Con

nect

orP

.C.b

oard

Term

inal

blo

ck

Pro

tect

ive

earth

Fiel

d w

iring

CN

-R

TB1

TB2

T-01

Pipe

tem

p. s

enso

r (Di

scha

rge)

Heat

exc

hang

e te

mp.

sen

sor

Oil

tem

p. s

enso

rLi

quid

tem

p. s

enso

rA

ir te

mp.

sen

sor

Pip

e te

mp.

sen

sor (

Suc

tion)

Term

inal

blo

ck(p

ower

sup

ply)

Term

inal

blo

ck(c

ontro

l wiri

ng)

Tran

ce

1 3

CN

100

13

45

NFC

modu

le

MC

C-1

673

MC

C-1

659

1Th

e in

stal

latio

n of

the

optio

nal b

oard

is u

p to

four

pie

ces.

*

TB

1

TB

2

Mg-

CTT

*Noi

se fi

lter P

.C. b

oard

s ar

e in

stal

led

ona

back

of

term

inal

blo

ck.

Par

ts lay

out

MC

C-1

669

(CM

1)M

CC

-166

9 (C

M2)

L2L3

N

L1 U1U2

SU3

U4U5

U6S

T-0

1

MC

C-1

653

(DEM

AN

D)

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AYP

NK

:PIN

KO

RN

:OR

ANG

EB

RN

:BR

OW

NG

RN

:GR

EE

NP

UR

:PU

RPL

E

Col

or in

dica

tion

1 3 (YE

L)

GRY

RED

(DE

MA

ND

)M

CC

-165

3

CN

102

(WH

I)

250V

~T3

.15A

Fuse

CN

100

(WH

I)

CN

101

(YE

L)

T-01

13

P02 BLK

DR

M3

DR

M2

DR

M1

CO

M

CN

01(B

LK)

To D

RE

D

CN

106

34

5(W

HI)

31

12

1

4

*1

AS

/NZS

475

5 D

RM

1

DR

M2

D

RM

3Ｗ

ＶＵ

Com

pres

sor t

erm

inal

− 29 −

Models: MMY-MAP1406HT8P-A and MAP1606HT8P-AP

OW

ER

SU

PPLY

CM

2

MS

3+

+

--

RE

DW

HI B

LKM

CC-1

669(

2)

SV2

CN321 SV

3CSV

3B

CN

800

(Ser

vice

)S

WR

T

ON

1OF

F2

3 4

1SW12

ON OFF

SW

17

23 4

SW07

1

ON OFF

23 4

ON ONS

W13

OFF

ON

12

3 4

SW

09ON OF

F 12

3 4

2SW14

OFF 1

3 42SW10

OFF 1

3 4

CN

511

CN

510

CN

512 FMM

S3

P>

63H

1

4

UV

W

CN301

CN

852

MCC

-165

9

CN322

SV3A

SV3

D

CN

101

CN

535

CN

851

CN

600

SW

04

SW

02D

600

D60

1D

602

SW01

CN

30CN

31 CN

32

SW03

D60

3D

604

SW

05SW

15

CN

523

CN

524

CN

902

CN

534

CN

505

CN

503

CN

507

CN

520

TK5

TK4

TL3

TL2

TL1

TE1

TOTS1

TD2

CN

501

CN

514

CN

513

PD 3

CN

502

CN

500

PS 3

31t°

TD1

UV

W

(WH

I)

(PN

K)

(WH

I)

(YE

L)

(GR

N)

(WH

I)

(GR

Y)

(PN

K)

(YE

L)

(RE

D)

5

31 21 1 21 221 1 31 331 21

CN311(WHI)

(WHI)

(WHI)

(BLU

)

(WH

I)(B

LU)

(GR

N)

(BLU

)(G

RN

)(R

ED

)(W

HI)

31

63

24

15

21

CN302

CN303

CN201

CN202

CN203

CN

305

RE

DW

HI

BLK

CN

852

CN09

CN10

23

41

34

RE

DW

HI

BLK

t° t° t° t°t° t°t° t°t°

(BLU

)

(BLU

)

(RE

D)

(WH

I)

(RE

D)

63H

2P>

(RE

D)

CN

306

L-CM

2

F01

F02CN03

CN02

CN01

CN10

2(B

LU)

CN10

2(W

HI)

CN

14

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

331

CN

335

CN

50

CN

13

HEA

TER

1

A.H

EAT

ER

HEA

TER

24WV

1

SV41

SV4

2

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2

PMV

3 5

CN

302

L3N

CN

01

CN

03

Ｍ

CN

300

Ｍ

5

PMV

1

CN

508

F01

F02

CN

530

4

CN312(BLU)

(BLU

)

(RE

D)

(WH

I)

(GR

Y)

(RE

D)

(WH

I)(B

LU)

(WH

I)

(BLU

)

BLK

WH

IB

LK

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN09

CN10

CN203

CN202

CN201

4

+-

CN01

CN02

CN03

F01

F02

CN

852CN

851

RE

DW

HI

BLK

MCC

-166

9(1)

4

RED

WHI

BLK

(BLK)

(RED)

(RE

D)

(WH

I)

1 21 26

24

31

62

43

1

(RE

D)

1 3

CN

304

CN

11

CN

12

WHIBLK

BLK BLK

WHI

RED

RB

6T3

4T23L2

5L3Mg-CTT

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IB

LKB

LK

U

UUU

GR

Y

A1

RE

D

A2

Coil

Mg-C

TT

GR

Y

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RE

D 2T11L1CN31 CN41

RE

DL1

4

SW

30

4 4S

W16

SW11

SW06

CN

509

(BLK

)

CN

903

TS3

(PU

R)

21t°

CN

521

TE2

(RE

D)

1 2t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

CN

525

TG1

(BLU

)21

t°

CN

526

TG2

(WH

I)21

t°

PM

V4 5

CN

303

Ｍ (RE

D)

62

43

1

A1 A2

MS

3

UV

WR

ED

WH

IB

LK

L-CM

1

CN12

CN01

CN

851(

WH

I)

12

34

CN

-R

TB2

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

2 23 34 45 5

2 3 4 51 3

F01

44

2 3 4 5

U1U2

SU3

U4U5

U6S

CN

332(

BLU

)

YEL

BLU

CN

23

CN

21

CN

23

CN

21

+-

13

13

13

13

12

34

5

12

34

5

1 3

1 2

1 32 4

1 2 3 4

OFF

ON

12

SW

800

OFF

ONSW

800

12

OFF

ONS

W80

0

12

Rot

ary

switc

hP

ush

butto

n sw

itch

2-w

ay v

alve

coi

l

Dip

sw

itch

63H

1,63

H2

CN

***

F01,

F02

RB

SV

2,S

V3A

,SV3

B,S

V3C

SV

3D,S

V41

,SV

42

PM

V4

CM

1,C

M2

4WV

1

CN

-R

SW

01,S

W02

,SW

03S

W04

,SW

05,S

W15

SW

06,S

W07

,SW

09,S

W10

SW

11,S

W12

,SW

13,S

W14

FM

Par

ts n

ame

4-w

ay v

alve

coi

lH

igh

pres

sure

sw

itch

Com

pres

sor

Rel

ay c

onne

ctor

Con

nect

orFu

se (C

ompr

esso

r)31

.5A

500

VFu

se (I

nter

face

) T6

.3A

250

VFu

se (N

oise

filte

r)T6

.3A

250

VFu

se (F

an)

6.3A

750

VD

CFa

n m

otor

PD

PS

HE

ATE

R1,

HE

ATE

R2

Com

pres

sor c

ase

heat

er

L-C

M1,

L-C

M2

A.H

EA

TER

(MC

C-1

669)

(MC

C-1

673)

F01,

F02

(MC

C-1

608A

)F0

1,F0

2,F0

3(M

CC

-165

9)

Symbol

MC

C-1

608B

MC

C-1

669

MC

C-1

608A

MC

C-1

659

MC

C-1

673

P.C

.Boa

rd

Sym

bol

Mg-

CTT

Rus

h cu

rren

t pro

tect

resi

stor

F01

PM

V3

PM

V1

Acc

umul

ator

cas

e he

ater

Rea

ctor

for c

ompr

esso

rM

agne

t con

tact

orP

ress

ure

sens

or (H

igh)

Pre

ssur

e se

nsor

(Low

)P

ulse

mot

or v

alve

(Mai

n)P

ulse

mot

or v

alve

(Sub

)P

ulse

mot

or v

alve

(Sub

coo

l)

SW

16,S

W17

,SW

30,S

W80

0TD

1,TD

2TE

1,TE

2TK

1,TK

2,TK

4,TK

5TL

1,TL

2,TL

3TO TS

1,TS

3TG

1,TG

2TB

1

ＶＵ

Com

pres

sor t

erm

inal

Ｗ

Term

inal

Con

nect

orP

.C.b

oard

Term

inal

blo

ck

Pro

tect

ive

earth

Fiel

d w

iring

CN

-RR

ED

:RE

DW

HI:W

HIT

EY

EL:

YE

LLO

WBL

U:B

LUE

BLK

:BLA

CK

GR

Y:G

RAY

PN

K:P

INK

OR

N:O

RAN

GE

BRN

:BR

OW

NG

RN

:GR

EE

NP

UR

:PU

RPL

E

Col

or in

dica

tion

MC

C-1

653

Par

ts n

ame

Inve

rter P

.C.B

oard

(Com

pres

sor)

Inte

rface

Con

trol P

.C.B

oard

Noi

se fi

lter P

.C.B

oard

AN

oise

filte

r P.C

.Boa

rd B

Inve

rter P

.C.B

oard

(Fan

)D

eman

d P

.C. B

oard

TB2

TB3

T-01

Pipe

tem

p. s

enso

r (Di

scha

rge)

Heat

exc

hang

e te

mp.

sen

sor

Oil

tem

p. s

enso

rLi

quid

tem

p. s

enso

rA

ir te

mp.

sen

sor

Pip

e te

mp.

sen

sor (

Suc

tion)

Gas

tem

p. s

enso

r Te

rmin

al b

lock

(pow

er s

uppl

y)Te

rmin

al b

lock

(con

trol w

iring

)Te

rmina

l bloc

k(inte

rnal w

iring c

onne

ctor)

Tran

ce

13

45

NFC

modu

le

Par

ts lay

out

MC

C-1

659

MC

C-1

673

TB

1

TB

2

Mg-

CTT

*Noi

se fi

lter P

.C. b

oard

s ar

e in

stal

led

ona

back

of

term

inal

blo

ck.

MC

C-1

669

(C

M1)

MC

C-1

669

(C

M2)

L2L3

N

L1 U1U2

SU3

U4U5

U6S

TB

3

1 T

he in

stal

latio

n of

the

optio

nal b

oard

is u

p to

four

pie

ces.

*

MC

C-1

653

(DEM

AN

D)

T-0

1

GRY

RED

(DE

MA

ND

)M

CC

-165

3

CN

102

(WH

I)

250V

~T3

.15A

Fuse

CN

100

(WH

I)

CN

101

(YE

L)

T-01

13

P02 BLK

DR

M3

DR

M2

DR

M1

CO

M

CN

01(B

LK)

To D

RE

D

CN

106

34

5(W

HI)

31

12

1

4

31 (YEL

)C

N10

0

Con

nect

or fo

r opt

iona

l P.C

.Boa

rd*1

*1

AS

/NZS

475

5 D

RM

1

DR

M2

D

RM

3

− 30 −

Models: MMY-MAP1806HT8P-A and MAP2006HT8P-AP

OW

ER

SU

PP

LY

CM

2

MS

3+

+

--MCC

-166

0(2)

SV

2

CN321 SV3C

SV

3B

CN

800

(Ser

vice

)S

WR

T

ON

1OF

F2

3 4

1SW

12ON OF

F

SW

17

23 4

SW

07

1

ON OFF

23 4

ON ONS

W13

OFF

ON

12

3 4

SW

09ON OF

F 12

3 4

2SW

14

OFF 1

3 42SW

10

OFF 1

3 4

CN

511

CN

510

CN

512 FM

1

MS

3

P>

63H

1

4

UV

W

CN301

+

CN

852

MCC

-165

9(1)

CN322

SV3

AS

V3D

CN

101

CN

535

CN

851

CN

600

SW04

SW

02D

600

D60

1D

602

SW

01

CN

30CN

31 CN

32

SW03

D60

3D

604

SW05

SW

15

CN

523

CN

524

CN

902

CN

534

CN

505

CN

503

CN

507

CN

520

TK5

TK4

TL3

TL2

TL1

TE1

TOTS1

TD2

CN

501

CN

514

CN

513

PD 3

CN

502

CN

500

PS 3

31t°

TD1

UV

W

(WH

I)

(PN

K)

(WH

I)

(YE

L)

(GR

N)

(WH

I)

(GR

Y)

(PN

K)

(YEL

)

(RE

D)

5

31 21 1 21 221 1 31 331 21

CN311(WHI)

(WHI)

(WHI)

(BLU

)

(WH

I)(B

LU)

(GR

N)

(BLU

)(G

RN

)(R

ED)

(WH

I)

31

63

24

15

21

CN302

CN303

CN201

CN202

CN203

CN

305

RE

DW

HI

BLK

CN

852

CN09

CN10

RED

WH

IBLK

23

41

34

RE

DW

HI

BLK

t° t° t° t°t° t°t° t°t°

(BLU

)

(BLU

)

(RED

)

(WH

I)

(RE

D)

63H

2P

>

(RED

)C

N30

6

L-CM

2

F01

F02CN03

CN02

CN01

CN10

2(B

LU)

CN10

2(W

HI)

-

CN

15

MC

C-1

608A

MC

C-1

608B

CM

1

CN23

CN24

CN

22

CN

317

CN

334

CN

50

CN

13

HEA

TER

1

A.H

EAT

ER

HE

ATER

24WV1

SV

41SV

42

ON OFF

ON

12

OFF 1

23

1

ON OFF

23

1OF

FON

23

MC

C-1

673

L2

PM

V3 5

CN

302

L3N

CN

01

CN

03

Ｍ

CN

300

Ｍ

5

PMV

1

CN

508

F01

F02

CN

530

4CN312(BLU)

(BLU

)

(RE

D)

CN

331(

WH

I)

CN

335(

GR

Y)

(RE

D)

(WH

I)(B

LU)

(WH

I)

(BLU

)

GRY

WH

IB

LK

CN

400

(WH

I)

(BLK

)31 31 31 31 31

75

31

+-

CN09

CN10

CN203

CN202

CN201

4

+-

CN01

CN02

CN03

F01

F02

CN

852CN

851

MCC

-166

0(1) 4

RED

WH

IBL

K

RED

WHI

BLK

(BLK)

(RED)

(RE

D)

(WH

I)

1 21 26

24

31

62

43

1

(RED

)1 3

CN

304

CN

11

CN

12

WHIBLK

BLK

F03

F02

F01

CN32

CN33

CN34

CN42

CN43

WH

IBL

KBL

K

U

UUU

GR

Y

RE

DA

1 A2Co

ilMg

-CTT

1

CN10

1(W

HI)

CN10

2(B

LU)

RED

GRY

TB1 RE

D

RE

D CN31 CN41

RE

DL1

4

SW

30

4 4S

W16

SW

11

SW

06

CN

509

(BLK

)

CN

903

TS3

(PU

R)

21t°

CN

521

TE2

(RED

)

1 2t°

CN

531

CN

532

TK2

TK1

(BLK

)

(GR

N)

1 331

t°t°

CN

525

TG1

(BLU

)21

t°

CN

526

TG2

(WH

I)21

t°

PM

V4 5

CN

303

Ｍ (RED

)

62

43

1 MS

3

UV

WR

EDW

HI

BLK

L-CM

1

A1 A2

Coil

Mg-C

TT2

RB

6T34T2

3L2 5L3

Mg-CTT

2T1

1L1

CN

15

MC

C-1

608B

CN

13

RED

WHI

BLK

CN

11

CN

12

BLK

CN32

CN33

CN

34

CN42

CN43

WH

IB

LKB

LK

CN31 CN41

RE

D

FM2

MS

3

UV

W

CN301

+

CN

852

MCC

-165

9(2)

CN

100

CN302

CN303R

ED

WH

IB

LK

(YEL

)

(RE

D)

-

CN

851

(RE

D)

CN

100

(YEL

)

CN01

CN12

CN04

MC

C-1

608A

Mg-CTT(2)

N/F

(A)2

N/F

(B)2

N/F

(A)1

N/F

(B)1

CN04

RB

6T34T2

3L2 5L3

Mg-CTT

2T1

1L1

Mg-CTT(1)

CN01

CN12

2 3 4 5

5 54 433 2

2 23 34 45 5

CN

851(

WH

I)

12

34

CN

-R

TB2

TO CENTRAL

CONTROLLER

TO INDOOR

UNIT

TO OUTDOOR

UNIT

3 4 51 3

31

F01

F01

3

1 3

U1U2

SU3

U4U5

U6S

CN

332(

BLU

)

CLA

MP

FILT

ER

*21

YEL

BLU

YEL

BLU

CN

22

CN

21

CN

22

CN

21

CN

23

CN

23

12

34

5

12

45

1 2 3 4 1 3

1 2 3 4

1 2

13

13

13

13

3

OFF

ON

12

SW

800

OFF

ON

12

SW

800

OFF

ON

12

SW

800

OFF

ON

12

SW

800

P.C

.Boa

rd

Rot

ary

switc

hP

ush

butto

n sw

itch

2-w

ay v

alve

coi

l

Dip

sw

itch

63H

1,63

H2

CN

***

F01,

F02

A.H

EA

TER

L-C

M1,

L-C

M2

Mg-

CTT

1,M

g-C

TT2

PD

PS

PM

V1

PM

V3

PM

V4

RB

SV2

,SV

3A,S

V3B

,SV3

CS

V3D

,SV

41,S

V42

CM

1,C

M2

4WV

1

CN

-R

SW

01,S

W02

,SW

03S

W04

,SW

05,S

W15

SW

06,S

W07

,SW

09,S

W10

SW

11,S

W12

,SW

13,S

W14

FM1,

Par

ts n

ame

4-w

ay v

alve

coi

lH

igh

pres

sure

sw

itch

Com

pres

sor

Rel

ay c

onne

ctor

Con

nect

orFu

se (C

ompr

esso

r)40

A 5

00V

Fuse

(Int

erfa

ce)

T6.3

A 2

50V

Fuse

(Noi

se fi

lter)

T6.3

A 2

50V

Fuse

(Fan

)6.

3A 7

50V

DC

Fan

mot

or

HE

ATE

R1,

HE

ATE

R2

Com

pres

sor c

ase

heat

er

(MC

C-1

660)

(MC

C-1

673)

F01,

F02

(MC

C-1

608A

)F0

1,F0

2,F0

3(M

CC

-165

9)

Symbol

MC

C-1

608B

MC

C-1

660

MC

C-1

608A

MC

C-1

659

MC

C-1

673

Sym

bol

Rus

h cu

rren

t pro

tect

resi

stor

Term

inal

Con

nect

orP

.C.b

oard

Term

inal

blo

ck

Pro

tect

ive

earth

Fiel

d w

iring

F01

FM2

CN

-R

Acc

umul

ator

cas

e he

ater

Rea

ctor

for c

ompr

esso

rM

agne

t con

tact

orP

ress

ure

sens

or (H

igh)

Pre

ssur

e se

nsor

(Low

)P

ulse

mot

or v

alve

(Mai

n)P

ulse

mot

or v

alve

(Sub

)Pu

lse

mot

or v

alve

(Sub

coo

l)

SW

16,S

W17

,SW

30,S

W80

0TD

1,TD

2TE

1,TE

2TK

1,TK

2,TK

4,TK

5TL

1,TL

2,TL

3TO TS

1,TS

3TG

1,TG

2TB

1

MC

C-1

653

Par

ts n

ame

Inve

rter P

.C.B

oard

(Com

pres

sor)

Inte

rface

Con

trol P

.C.B

oard

Noi

se fi

lter P

.C.B

oard

AN

oise

filte

r P.C

.Boa

rd B

Inve

rter P

.C.B

oard

(Fan

)D

eman

d P

.C.B

oard

TB2

TB3

T-01

Pipe

tem

p. s

enso

r (Di

scha

rge)

Heat

exc

hang

e te

mp.

sen

sor

Oil

tem

p. s

enso

rLi

quid

tem

p. s

enso

rA

ir te

mp.

sen

sor

Pip

e te

mp.

sen

sor (

Suc

tion)

Gas

tem

p. s

enso

rTe

rmin

al b

lock

(pow

er s

uppl

y)Te

rmin

al b

lock

(con

trol w

iring

)Te

rmina

l bloc

k(inte

rnal w

iring c

onne

ctor)

Tran

ceM

CC

-165

9 (FM

1)

MC

C-1

673

TB

1

TB

2

Mg-

CTT(1

)

AS

/NZS

475

5 D

RM

1

DR

M2

D

RM

3Par

ts lay

out MC

C-1

660

(C

M1)

MC

C-1

660

(C

M2)

L2L3

N

L1

MC

C-1

659

(FM

2)

MC

C-1

608A

(1)

MC

C-1

608B

(1)

U1U2

SU3

U4U5

U6S

Mg-

CTT(2

)

MC

C-1

608A

(2)

MC

C-1

608B

(2)

TB

3

MC

C-1

653

(DEM

AN

D)

T-0

1

44

ＶＵ

Com

pres

sor t

erm

inal

ＷRED

:RE

DW

HI:W

HIT

EY

EL:Y

ELLO

WB

LU:B

LUE

BLK

:BLA

CK

GR

Y:G

RA

YP

NK

:PIN

KO

RN

:OR

AN

GE

BR

N:B

RO

WN

GR

N:G

RE

EN

PU

R:P

UR

PLE

Col

or in

dica

tion

GRY

RED

(DE

MA

ND

)M

CC

-165

3C

N10

2(W

HI)

250V

~T3

.15A

Fuse

CN

100

(WH

I)

CN

101

(YE

L)

T-01

13

DR

M3

DR

M2

DR

M1

CO

M

CN

01(B

LK)

To D

RE

D

CN

106

34

5(W

HI)

31

12

1

4

1 3 CN

100

(YE

L)

*1C

onne

ctor

for o

ptio

nal P

.C.B

oard

13

45

The

inst

alla

tion

of th

e op

tiona

l boa

rd is

up

to fo

ur p

iece

s.In

stal

l the

atta

ched

Cla

mp

filter

on-

site.

*1 *2

*Noi

se fi

lter P

.C. b

oard

s ar

e in

stal

led

ona

back

ofte

rmin

al b

lock

.

NFC

modu

le

− 31 −

− 32 −

Models: MMY-MAP0806T*(J)P-*, MAP1006T*(J)P-*, MAP1206*(J)P-* and MAP14B6T*(J)P-*

− 33 −

Models: MMY-MAP1406T*(J)P-*, MAP1606T*(J)P-* and MAP18B6*(J)P-*

− 34 −

Models: MMY-MAP1806T*(J)P-*, MAP2006T*(J)P-* and MAP2206*(J)P-*

2 Parts Rating2-1. Outdoor Unit (50Hz model: MMY-MAP***6*T8*P*)

− 35 −

Name Model Specification

MM

Y-M

AP

0806

(H)T

8(J)

P*

MM

Y-M

AP

1006

(H)T

8(J)

P*

MM

Y-M

AP

1206

(H)T

8(J)

P*

MM

Y-M

AP

14B

6T8(

J)P

*

MM

Y-M

AP

1406

(H)T

8(J)

P*

MM

Y-M

AP

1606

(H)T

8(J)

P*

MM

Y-M

AP

18B

6T8(

J)P

*

MM

Y-M

AP

1806

(H)T

8(J)

P*

MM

Y-M

AP

2006

(H)T

8(J)

P*

MM

Y-M

AP

2206

(H)T

8(J)

P*

1 Compressor RA421A3TB-20MD Output:2.1kW×2 1 Compressor RA421A3TB-20MD Output:3.1kW×2 1 Compressor RA421A3TB-20MD Output:3.9kW×2 1 Compressor RA421A3TB-20MD Output:5.4kW×2 1 Compressor RA641A3TB-20M Output:4.8kW×2 1 Compressor RA641A3TB-20M Output:5.8kW×2 1 Compressor RA641A3TB-20M Output:6.9kW×2 1 Compressor RA641A3TB-20M Output:6.5kW×2 1 Compressor RA641A3TB-20M Output:7.6kW×2 1 Compressor RA641A3TB-20M Output:9.0kW×2

2 4-way valve coil*1 SHF AC220-240V 50Hz

AC220-240V 50HzSV3BAC220-240V 50HzSV2，3A，3C，3DAC220-240V 50HzSV41，42AC220-240V 50HzSV51*2

AC220-240V 50HzSV52

4 Pulse motor valve coil PAM DC12V 4 Pulse motor valve coil UKV DC12V 5 High-presure SW ACB-4UB154W OFF:4.15MPa ON:3.2MPa 6 Pressure sensor(For high pressure) NSK-BH038F-460 0.5~4.3V/0~3.92MPa 7 Pressure sensor(For low pressure) NSK-BH010F-460 0.5~3.5V/0~0.98MPa 8 Fan motor WDF-620A1000-1 DC530-620 9 Case heater(For comp.) AC240V/29W 10 Case heater(For accum.) AC240V/55W 11 Fusible plug 73

*2 2* *2

3 2-way valve coil FQ-G593

1* *1 1* *2 2*

3 2-way valve coil TEV

3 2-way valve coil VPV

*1：Heat pump model only.*2：-E，-TR of heat pump model only.

2-2. Outdoor Unit (60Hz model: MMY-MAP∗∗∗6HT7∗P∗)

− 36 −

Name Model Specification

MM

Y-M

AP

0806

(H)T

7(J)

P*

MM

Y-M

AP

1006

(H)T

7(J)

P*

MM

Y-M

AP

1206

(H)T

7(J)

P*

MM

Y-M

AP

14B

6T7(

J)P

*

MM

Y-M

AP

1406

(H)T

7(J)

P*

MM

Y-M

AP

1606

(H)T

7(J)

P*

MM

Y-M

AP

18B

6T7(

J)P

*

MM

Y-M

AP

1806

(H)T

7(J)

P*

MM

Y-M

AP

2006

(H)T

7(J)

P*

MM

Y-M

AP

2206

(H)T

7(J)

P*

1 Compressor RA421A3TB-20MD Output:2.1kW×2 1 Compressor RA421A3TB-20MD Output:3.1kW×2 1 Compressor RA421A3TB-20MD Output:3.9kW×2 1 Compressor RA421A3TB-20MD Output:5.4kW×2 1 Compressor RA641A3TB-20M Output:4.8kW×2 1 Compressor RA641A3TB-20M Output:5.8kW×2 1 Compressor RA641A3TB-20M Output:6.9kW×2 1 Compressor RA641A3TB-20M Output:6.5kW×2 1 Compressor RA641A3TB-20M Output:7.6kW×2 1 Compressor RA641A3TB-20M Output:9.0kW×2

2 4-way valve coil*1 SHF AC208-230V 60Hz

AC208-230V 60HzSV3BAC208-230V 60HzSV2，3A，3C，3DAC208-230V 60HzSV41，42AC208-230V 60HzSV52

4 Pulse motor valve coil PAM DC12V 4 Pulse motor valve coil UKV DC12V 5 High-presure SW ACB-4UB154W OFF:4.15MPa ON:3.2MPa 6 Pressure sensor(For high pressure) NSK-BH038F-460 0.5~4.3V/0~3.92MPa 7 Pressure sensor(For low pressure) NSK-BH010F-460 0.5~3.5V/0~0.98MPa 8 Fan motor WDF-620A1000-1 DC530-620 9 Case heater(For comp.) AC240V/29W 10 Case heater(For accum.) AC240V/55W 11 Fusible plug 73

3

2-way valve coil FQ-D640

3 2-way valve coil TEV

*1*1*1

3 2-way valve coil VPV

*1：Heat pump model only.

2-3. Outdoor Inverter (50/60Hz model: MMY-MAP***6*T8/7*P*)

− 37 −

No Name Model Specification

MM

Y-M

AP

08

06

*

MM

Y-M

AP

10

06

*

MM

Y-M

AP

12

06

*

MM

Y-M

AP

14

B6

*

MM

Y-M

AP

14

06

*

MM

Y-M

AP

16

06

*

MM

Y-M

AP

18

B6

*

MM

Y-M

AP

18

06

*

MM

Y-M

AP

20

06

*

MM

Y-M

AP

22

06

*

1 Power supply terminal block JXO-6004 AC600V/75A,4P

2 Relay terminal block for reactor JXO-3004 AC600V/30A,4P - - - -

3 Communication terminal block JXO-B2J AC30V(or no more than DC42V)/1A,8P

4 Reactor(For comp. & fan) CH-79 5.8mH/14A - - - - - -

5 Reactor(For comp. & fan) CH-90 2.9mH/25A - - - - - - -

6 Reactor(For comp. & fan) CH-65 2.9mH/30A - - - - - - -

7 P.C.board(Noise filter) MCC-1608 -

8 Line filter - 4.0mH/AC400V/35A - - -

9 Line filter - 0.77mH/AC480V/50A - - - - - - -

10 P.C.board(I/F board) MCC-1673 -

11 P.C.board(IPDU for comp.) MCC-1669 - - - -

12 P.C.board(IPDU for comp.) MCC-1660 - - - - - - - -

13 Fuse(MCC-1669) GAC1 31.5A 31.5A/AC500V(P.C.board) - - -

14 Fuse(MCC-1660) GAC1 40A 40A/AC500V(P.C.board) - - - - - - -

15 Comp.motor drive IPM PSS25SA2FT 25A/DC1200V(P.C.board) - - - - - -

16 Comp.motor drive IPM PSS50SA2FT 50A/DC1200V(P.C.board) - - - -

17 P.C.board(IPDU for fan) MCC-1659 -

18 Fuse(MCC-1659) HDL1 6.3A 6.3A/DC750V(P.C.board)

19 Fan motor drive IPM(MCC-1659) PSS10S72FT 10A/DC1200V(P.C.board)

20 Magnet switch (MG-CTT) (50/60Hz) FC-1S AC220-240V

21 PTC thermistor MZ32-101RMARD01E 13A/AC500V

22 Pipe temp. sensor(TD) - -30-135（Ambient temp. range)

23 Pipe temp. sensor(TS) - -20-80（Ambient temp. range)

24 Heatexchanger temp. sensor(TE) - -20-80（Ambient temp. range)

25 Outside temp. sensor(TO) - -20-80（Ambient temp. range)

26 Oil temp. sensor(TK) - -30-135（Ambient temp. range)

27 Liquid temp. sensor(TL) - -20-80（Ambient temp. range)

28 Gas temp. sensor(TG) - -30-130（Ambient temp. range) - - - -

2-4. Parts Layout in Outdoor Unit 8, 10, 12, 14HP

Model: MMY-MAP0806∗, MAP1006∗, MAP1206∗, MAP14B6*

TO s

enso

r

Low

pre

ssur

e se

nsor

TE1

sens

or

Che

ck jo

int

(Low

pre

ssur

e)

PM

V 1

Hig

h pr

essu

reS

W2

SV

52 v

alve

*Hea

t pum

p m

odel

onl

y

4way

val

ve*H

eat p

ump

mod

el o

nly

Che

ck jo

int

(Hig

h pr

essu

re)

TL1

sens

or

TL3

sens

or

Che

ck jo

int

(Liq

uid

pipe

)H

igh

pres

sure

SW

1C

omp

ress

or 1

Com

p re

ssor

2

Acc

umla

tor

TD2

seno

r

TD1

seno

r

SV

42 v

alve

SV

41 v

alve

TS3

sens

or

TS1

sens

or

SV

3D v

alve

SV

2 va

lve

SV

3C v

alve

PM

V 4

SV

3BS

V3A

TK4

sens

orTK

5 se

nsor

TK2

sens

orTK

1 se

nsor

Fusi

ble

plug

Liqu

id ta

nk

SV

51 v

alve

*-E

,-TR

mod

el o

nly

Hig

h pr

essu

rese

nsor

− 38 −

14, 16, 18HPModel: MMY-MAP1406∗, MAP1606∗, MAP18B6*

TO

sen

sor

Com

p re

ssor

1

Low

pre

ssur

e se

nsor

TE

1 se

nsor

Che

ck jo

int

(Low

pre

ssur

e)

PM

V 1

Hig

h pr

essu

reS

W2

SV

52 v

alve

*-E

,-TR

mod

el o

nly

4way

val

ve*H

eat p

ump

mod

el o

nly

Che

ck jo

int

(Hig

h pr

essu

re)

TL1

sen

sor

TL2

sen

sor

Che

ck jo

int

(Liq

uid

pipe

)

TS

3 se

nsor

TS

1 se

nsor

SV

3D v

alve

SV

2 va

lve

SV

3C v

alve

PM

V 4

SV

3BS

V3A

TK

4 se

nsor

TK

5 se

nsor

TK

2 se

nsor

TK

1 se

nsor

Fus

ible

plu

g

Liqu

id ta

nk

SV

51 v

alve

*-E

,-TR

mod

el o

nly

Acc

umla

tor

TD

2 se

nor

TD

1 se

nor

SV

42 v

alve

SV

41 v

alve

TE

2 se

nsor

TG

1 se

nsor

*Hea

t pum

p m

odel

onl

y

TG

2 se

nsor

*Hea

t pum

p m

odel

onl

y

PM

V 3

TL3

sen

sor

Hig

h pr

essu

rese

nsor

Com

p re

ssor

2

Hig

h pr

essu

reS

W1

− 39 −

18, 20, 22HP

Model: MMY-MAP1806∗, MAP2006∗, MAP2206∗

TO s

enso

r

TE1

sens

or

Che

ck jo

int

(Low

pre

ssur

e)

PM

V 1

Hig

h pr

essu

reS

W2

SV

52 v

alve

*-E

,-TR

mod

el o

nly

4way

val

ve*H

eat p

ump

mod

el o

nly

Che

ck jo

int

(Hig

h pr

essu

re)

TL1

sens

orTL

2 se

nsor

TS3

sens

or

TS1

sens

or

SV

3D v

alve

SV

2 va

lve

SV

3C v

alve

PM

V 4

SV

3B

SV

3A

TK4

sens

or

TK5

sens

or

TK2

sens

or

TK1

sens

or

Fusi

ble

plug

SV

51 v

alve

*-E

,-TR

mod

el o

nly

TE2

sens

or

TG1

sens

or*H

eat p

ump

mod

el o

nly

TG2

sens

or*H

eat p

ump

mod

el o

nly

PM

V 3

TL3

sens

orH

igh

pres

sure

se

nsor

Com

p re

ssor

1

Che

ck jo

int

(Liq

uid

pipe

)

Com

p re

ssor

2

Acc

umla

tor

TD2

seno

r

TD1

seno

r

SV

42 v

alve

SV4

1 va

lve

Hig

h pr

essu

reS

W1

Liqu

id ta

nk

Low

pre

ssur

e se

nsor

− 40 −

2-5. Parts Layout in Inverter Assembly Outdoor Unit (8, 10, 12, 14HP)Model: MMY-MAP0806∗, MAP1006∗, MAP1206∗, MAP14B6*

Inverter P.C. board for fan [FAN IPDU]

(MCC-1659)

Interface P.C. board [Outdoor control P.C. board] (MCC-1673)

Noise Filter P.C. board (MCC-1608)

Power supply terminal block

Communication terminal block

Relay connectorfor central control

Inverter P.C. board for Compressor 2 [A3 IPDU] (MCC-1669)


Magnet Contactor

Thermistor

− 41 −

Outdoor Unit (14, 16, 18HP)Model: MMY-MAP1406∗, MAP1606∗, MAP18B6*

Inverter P.C. board for fan [FAN IPDU] (MCC-1659)




Relay connectorfor central control




Relay terminal block for reactor

Magnet Contactor

Thermistor

− 42 −

Outdoor Unit (18, 20, 22HP)

Model: MMY-MAP1806∗, MAP2006∗, MAP2206∗

Inverter P.C. board for fan 1 [FAN IPDU]

(MCC-1659)





Relay connector for central control

Magnet Contactor



Thermistor

Inverter P.C. board for fan 2 [FAN IPDU]

(MCC-1659)


− 43 −

2-6. Outdoor (Inverter) Print Circuit Board 2-6-1. Interface P.C. board (MCC-1673)

- - - - TO CN507 - - TD2 CN503 TK2 CN532 TK5 CN535 TE2 CN521 - - TD1 CN502 TK1 CN531 TK4 CN534 TE1 CN520 TS1 CN505 TG2 CN526 TL2 CN524 TG1 CN525 TL1 CN523

Sensor input

CN511 CN508 CN510 CN513 CN514 CN509 CN512

Option input/output

PMV1 output CN300

PMV3 output CN302

PMV4 output CN303

UART communication

CN600

SW06, 07, 09, 10

SW11, 12, 13, 14

SW16, 17

Jumper select

SW30

For inter-unit cable between indoor and outdoor units

CN01

For inter-unit cable between outdoor units

CN03

SV42,SV41 CN312

SV51,SV52 CN314

SV2 CN311

SV3A SV3B SV3C CN321

SV3D CN322

Comp. case heater 1 CN331

Comp. case heater 2 CN332

Accumulator heater CN334

4-way valve output CN317

Dyna-doctor connecting terminal

CN800

PS sensor CN500

PD sensor CN501

SW01, 02, 03

7-segment LED

SW04, 05, 15

High pressure SW CN305, 306

TS3 CN903 TL3 CN902

Sensor input

NFC connecting terminal

CN851

− 44 −

2-6-2. Inverter P.C. board for compressor (MCC-1660) A3-IPDU

Power supply input L1 CN01


Reactor connectingterminal CN09

Reactor connecting terminal CN10

Compressor output W-phase CN201

Compressor output V-phase CN202

Compressor output U-phase CN203

For inverter address setting SW800

UART communication CN852



Power supply output to FAN CN21


− 45 −

2-6-3. Inverter P.C. board for compressor (MCC-1669) A3-IPDU



Reactor connectingterminal CN09

Reactor connecting terminal CN10

Compressor output W-phase CN201

Compressor output V-phase

CN202

Compressor output U-phase CN203







− 46 −

2-6-4. Inverter P.C. board for fan motor (MCC-1659) FAN-IPDU

Fan motor Output U-phase CN303

UART communication between A3-IPDU CN851

Fan motor Output V-phase CN302

Fan motor Output W-phase CN301

Power supply Input from A3-IPDU CN01

UART communication between interfaces CN852

Power supply Input from A3-IPDU CN12

Power supply Input from N/F CN101


− 47 −

2-6-5. Noise Filter PC board (MCC-1608 -A, -B)




Power supply output L1 CN41




Power supply output to I/F CN22





MCC-1608-A MCC-1608-B

− 48 −

Outdoor Unit (8, 10, 12HP)Model: MMY-MAP0806 , MMY-MAP1006 , MMY-MAP1206

3 Refrigerant Piping Systematic Drawing

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor

Right side Main heat exchanger

Left side Main heat exchanger (PMV1)

4-way valve

High-pressure sensor

Low-pressure sensor Oil separator

Fusible plug

Liquid Tank

Accumulator

High- pressure switch


Compressor 1

(Inverter)

Oil Header

Liquid side Service valve

Gas side Service valve

Balance pipe Service valve

Sub cool heat exchanger

SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve

Check joint Strainer Temperature

sensor

Symbol

Distributor

Reducer

− 49 −

Outdoor Unit (14, 16HP)Model: MMY-MAP1406 , MMY-MAP1606

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor


Left side Main heat exchanger

Right side Sub heat exchanger

Left side Sub heat exchanger

(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumlator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

− 50 −

Outdoor Unit (18, 20, 22HP)Model: MMY-MAP1806∗ , MMY-MAP2006∗ , MMY-MAP2206∗

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

− 51 −

Outdoor Unit (8，10，12HP)Model： MMY-MAP0806*-E/TR，MMY-MAP1006*-E/TR，MMY-MAP1206*-E/TR

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor



4-way valve



Fusible plug

Liquid Tank

Accumulator



Check valve

Check valve

Compressor 1

(Inverter)

Oil Header





SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

SV

(SV51)

− 52 −

Outdoor Unit (14，16HP)Model： MMY-MAP1406*-E/TR，MMY-MAP1606*-E/TR

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2) (SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

SV

(SV52) SV

(SV51)

− 53 −

Outdoor Unit (18，20，22HP)Model： MMY-MAP1806*-E/TR，MMY-MAP2006*-E/TR，MMY-MAP2206*-E/TR

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

(SV52) SV

(SV51)

− 54 −

Outdoor Unit (8，10，12, 14HP)Model： MMY-MAP1806T8/7(J)P*, MMY-MAP1006T8/7(J)P*, MMY-MAP1206T8/7(J)P* MMY-MAP14B6T8/7(J)P*

− 55 −

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor





Fusible plug

Liquid Tank

Accumulator



Check valve

Check valve

Compressor 1

(Inverter)

Oil Header





FP

Compressor 2

(Inverter)

Reducer

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

− 56 −

Outdoor Unit (14，16，18HP)Model： MMY-MAP1406T8/7(J)P*, MMY-MAP1606T8/7(J)P* MMY-MAP18B6T8/7(J)P*

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1) (TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Outdoor Unit (18，20，22HP)Model： MMY-MAP1806T8/7(J)P*, MMY-MAP2006T8/7(J)P*, MMY-MAP2206T8/7(J)P*

− 57 −

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1) (TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

Explanation of Functional Parts

eniltuo lanoitcnuFeman trap lanoitcnuF

Solenoid valve

SV3A (Connector CN321: White)1) Supplies oil reserved in the oil header during ON time.

SV3B (Connector CN321: White)1) Returns oil supplied in the balance pipe to the compressor.

SV3C (Connector CN321: White)1) Pressurizes oil reserved in the oil header during ON time.

SV3D(Connector CN322: White)1) Reserves oil in the oil separator during OFF time.2) Returns oil reserved in the oil separator to the compressor during ON time.

SV2

(Hot gas bypass) (Connector CN311: White)1) Low pressure release function2) High pressure release function3) Gas balance function during stop time

SV41SV42

(Start assure valve of compressor)(SV41 Connector CN312: Blue, SV42 Connector CN312: Blue.1) For gas balance start2) High pressure release function3) Low pressure release function

SV52

(Connector CN314: White)1) Gas injection function during hot gas defrost in heating operation

4-way valve(Connector CN317:Blue)1) Cooling/heating exchange2) Reverse defrost

Oil separator 1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle) 2) Reserve function of surplus oil

Pressure sensor

High pressure sensor

(Connector CN501: Red)1) Detects high pressure and controls compressor capacity2) Detects high pressure in cooling operation, and controls the fan in low ambient cooling operation 3) Detects subcool in indoor unit in heating operation

Low pressure sensor

(Connector CN500: White)1) Detects low pressure in cooling operation and controls compressor capacity2) Detects low pressure in heating operation, and controls the super heat

Heater

Compressor case heater

(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue.1) Prevents liquid accumulation to compressor

Accumulator case heater

(Connector CN334: Red)1) Prevents liquid accumulation to accumulator

tinu roodtuo hcae ni gnicnalab liO )1epip ecnalaB

(PMV1 Connector CN300: White,　PMV3 Connector CN302: Blue)1) Super heat control function in heating operation

PMV1, 32) Liquid line shut-down function while follower unit stops

Pulese motor 3) Subcool adjustment function in cooling operationvalve 4) Exchange function between main and sub exchangers in cooling operation

(Connector CN303: Red)

PMV41) Subcool adjustment function in cooling operation2) Liquid bypass function for discharge temperature release (cooling bypass function)

TD1 (TD1 Connector CN502: White,　TD2 Connector CN503: Pink )

TD21) Protection of compressor discharge temp.2) Used for dischage temperature release

TS1

(Connector CN505: White)1) Controls PMV1 super heat in heating operation2) Protection of compressor

TS3(Connector CN902: Purple)1) Controls PMV4 super heat in heating operation

TG1 (TG1 Connector CN520: Blue,　TG2 Connector CN526: White )TG2 1) Controls PMV1 super heat in heating operation

Temp. SensorTE1

(TE1 Connector CN520: Green,　TE2 Connector CN521: Red )

TE21) Controls defrost in heating operation2) Controls outdoor fan in heating operation

TK1,TK2 (TK1 Connector CN531: Black,　TK2 Connector CN532: Green, TK4 Connector CN534: Yellow,

TK4,TK5 TK5 Connector CN535: Red)

1) Judges oil level of the compressor

TL1,TL2 (TL1 Connector CN523: White,　TL2 Connector CN521: Gray, TL3 Connector CN903: Pink)TL3 1) Detects subcool in cooling operation

TO (Connector CN507: Yellow)1) Detects outside temperature

(Connector CN314: White)1) Preventive function for high-pressure rising in heating operation2) Gas injection function during hot fas defrost in heating operation

SV51

− 58 −

Indoor Unit

CAUTION

MMU-AP007YH, AP012YH type air conditioners have no TC2 sensor.

Explanation of functional parts in indoor unit

eniltuo lanoitcnuFeman trap lanoitcnuF

Pulse Motor Valve

PMV

(Connector CN082 (6P): Blue)1) Controls super heat in cooling operation2) Controls subcool in heating operation3) Recovers refrigerant oil in cooling operation4) Recovers refrigerant oil in heating operation

Temp. Sensor1.TA

(Connector CN104 (2P): Yellow)1) Detects indoor suction temperature

2.TC1(Connector CN100 (3P): Brown)1) Controls PMV super heat in cooling operation

3.TC2(Connector CN101 (2P): Black)1) Controls PMV subcool in heating operation

4.TCJ(Connector CN102 (2P): Red)1) Controls PMV super heat in cooling operation2) [MMU-AP007YH to AP012YH only] Controls PMV subcool in heating operation

Sensor(TC2)

M

Fan

Fan motor

Sensor(TCJ)

Sensor(TC1)

Strainer

Liquidside Gas side

Capillary tube

Sensor(TA)

Pulse Motor Valve (PMV)

Heat exchanger at indoor side

− 59 −

4 Combined Refrigerant Piping SystemSchematic Diagrams

4-1. Normal Operation (COOL Mode / DEFROST Mode) - High Outside Air Temperature (Roughly 20°C or Above)

Header unit (MMY-MAP1606HT*) Follower unit (MMY-MAP1206HT*)

Outdoor Unit

4-Way valve OFF SV3A Control

SV4(n) OFF(*1) SV3B Control

SV52 Control SV3C Control

PMV1 Control SV3D Control

PMV3 Control Outdoor fan Control

PMV4 Control ( 28 HP system described in the example of (16 HP + 12 HP))

(*1) SV4 (n) of stopped compressor (n)=ON

(*2) It may be controlled.

SV41 SV3C

SV42

Fan

圧縮機

１ (ｲﾝﾊﾞｰﾀ)

SV

SV

SV

SV

SV

SV

SV

FP

Indo

or

Uni

t

Evaporative gas refrigerant (Low pressure)

Low-pressure circuit (Refrigerant recovery line)

High-pressure gas refrigerant

Condensed liquid refrigerant

M

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Conpressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger

The outdoor unit which communication line between indoor and outdoor is connected is the "Header unit".

Other outdoor units are called "Follower units".

TL1

− 60 −

4-2. Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly Below 20°C)

Header unit (MMY-MAP1606HT*) Follower unit (MMY-MAP1206HT*)

Outdoor Unit

4-Way valve OFF SV3A Control


SV52 OFF SV3C Control

PMV1 Close(*2) SV3D Control


PMV4 Close(*2) ( 28 HP system described in the example of (16 HP + 12 HP))



SV41 SV3C

SV42

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

FP

Indo

or

Uni

t

M

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Compressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger







TL1

− 61 −

4-3. Normal Operation (HEAT Mode)Header unit (MMY-MAP1606HT*) Follower unit (MMY-MAP1206HT*)

Outdoor Unit

4-Way valve ON SV3A Control


SV52 OFF SV3C Control

PMV1 Control SV3D Control


PMV4 Close(*2) ( 28 HP system described in the example of (16 HP + 12 HP))



SV41 SV3C

SV42

Fan

圧縮機


SV

SV

SV

SV

SV SV

SV

FP

Indo

or

Uni

t

M

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Compressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger







TL1

− 62 −

4-4. Normal Operation (HOT GAS DEFROST Mode)

− 63 −

Outdoor UnitON SV3A Control

SV4(n) OFF(*1) SV3B ControlSV51/52 ON SV3C ControlPMV1 Close SV3D ControlPMV3 Close OFFPMV4 Close ( 28 HP system described in the example of (16 HP + 12 HP))


4-Way valve

Outdoor fan





The outdoor unit which communication line between indoor and outdoor is connected is the "Header unit". Other outdoor units are called "Follower units".

SV41

SV3C

SV42

Fan

圧縮機１

(ｲﾝﾊﾞｰﾀ)

SV

SV

SV

SV

SV

SV

SV

FP

Indo

or U

nit

Header unit (MMY-MAP1606HT8P-E/TR) Follower unit (MMY-MAP1206HT8P-E/TR)

M

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3 SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42 Accumulator

Pressure sensor (low pressure)

Check Joint

Oil Header

Fan

圧縮機１

(ｲﾝﾊﾞｰﾀ)

SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor (high pressure)

SV2 SV3D

Liquid tank

Oil Separator

Check Joint

TD1

TK4

TK5

Compressor 1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4


TL3

Fusible Plug

FP

HPS

Compressor 2

Check joint




HPS

Accumulator

Pressure sensor (low pressure)

Check Joint

Oil Header

4-Way valve

Pressure sensor (high pressure)

Liquid tank

Oil Separator

Check Joint

Compressor 1


Fusible Plug

HPS

Compressor 2

Check joint



TL1 SV

SV51

SV

SV52 SV51

SV

4-5. Emergency Operation (Cooling Operation under Header Outdoor Unit Backup Scenario)

Header unit (MMY-MAP1606HT*) Follower unit (MMY-MAP1206HT*) Trouble

Set Up as Temporary Header Unit during Emergency Operation

Trouble header outdoor unit Temporal header outdoor unit

4-Way valve OFF SV3A OFF 4-Way valve OFF SV3A Control

SV4(n) ON SV3B ON SV4(n) OFF(*1) SV3B Control

SV52 OFF SV3C OFF SV52 OFF SV3C Control

PMV1 Close SV3D OFF PMV1 Control SV3D Control

PMV3 Close Outdoor fan OFF PMV3 Control Outdoor fan Control

PMV4 Close PMV4 Control



( 28 HP system described in the example of (16 HP + 12 HP))

SV41 SV3C

SV42

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

FP

Indo

or

Uni

t

M

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Compressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger

Leakage form PMV:

Liquid-side service valve

= Full closure

Balance pipe service valve

= Full opening Gas-side service valve

= Full closure







TL1

− 64 −

4-6. Emergency Operation (Heating Operation under Header Outdoor Unit Backup Scenario)


Set Up as Temporary Header Unit during Emergency Operation

Trouble header outdoor unit Temporal header outdoor unit

4-Way valve ON SV3A OFF 4-Way valve ON SV3A Control

SV4(n) ON SV3B ON SV4(n) OFF(*1) SV3B Control

SV52 OFF SV3C OFF SV52 OFF SV3C Control

PMV1 Close SV3D OFF PMV1 Control SV3D Control

PMV3 Close Outdoor fan OFF PMV3 Control Outdoor fan Control

PMV4 Close PMV4 Close(*2)




SV41 SV3C

SV42

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

FP

Indo

or

Uni

t

M

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TC2 TCJ TC1

Heating

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Compressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger


= Full opening Gas-side service valve

= Full closure

Leakage form PMV:


= Full closure







TL1

− 65 −

4-7. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down Operation under Follower Outdoor Unit Backup Scenario)


Header outdoor unit Trouble outdoor unit

4-Way valve OFF SV3A Control 4-Way valve ON SV3A Control

SV4(n) OFF(*1) SV3B Control SV4(n) OFF(*1) SV3B Control

SV52 ON SV3C Control SV52 OFF SV3C Control

PMV1 Control SV3D Control PMV1 Open(*2) SV3D Control

PMV3 Control Outdoor fan Control PMV3 Open(*2) Outdoor fan Control

PMV4 Control PMV4 Open(*2)




SV41 SV3C

SV42

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

FP

Indo

or

Uni

t

M

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TC2 TCJ TC1

Cooling

PM

V

TS1

Fan motor

PMV1

TE1

TO

SV52

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

TL1 SV

PMV4

TL3

SV41 SV3C

HPS

SV42

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

Fan

圧縮機


SV

SV

SV

SV

SV

SV

SV

M

TS1

Fan motor

PMV1

4-Way valve

TE1 PMV3

TL2

TO


TS3 Pressure sensor

(high pressure)

SV2

SV3D

Liquid tank

Oil

Separator

Check Joint

TD1

TK4

TK5

Compressor

1

TD2

TK2 TK1

SV3A

SV3B

TE2

TL1

TG1

TG2

PMV4

Sub cool

heat exchanger

TL3

Fusible

Plug

FP

HPS

Compressor

2

Check joint

Left side

Main heat exchanger


Right side

Main heat exchanger

HPS

Accumulator

Pressure sensor

(low pressure)

Check

Joint

Oil

Header

4-Way valve

Pressure sensor

(high pressure)

Liquid tank

Oil

Separator

Check Joint

Compressor

1

Sub cool

heat

exchanger

Fusible

Plug

HPS

Compressor

2

Check joint

Left side

Main heat exchanger

Right side

Main heat exchanger


= Full opening

Gas-side service valve = Full opening

⇒ Full closure 10 minutes after system startup


= Full closure

Liquid line bypass







− 66 −

Outdoor Unit

Item Description of operation, numerical data, and other information Remarks

1. Pulsemotor valve (PMV) control

1. PMV1, 3 control (PMV1 and 3)1)During air conditioner operation, the pulse count of a PMV1 (pulse motor valve 1)

is controlled between 120pls and 3000pls. During air conditioner operation,the pulse count of PMV3 is controlled between 45pls and 500pls.

2)During cooling, the PMV opening is controlled on the basis of measurementsprovided by the TL temperature sensor and the Pd pressure sensor (subcoolcontrol).

3)During heating, the PMV opening is controlled on the basis of measurementsprovided by the TS, TD and TG temperature sensors and the PSpressure sensor (super heat control).

4)PMVs are fully closed when the air conditioner is in thermostat OFF state orupon being turned off normally or shut down due to an abnormality.

2. PMV4 control1)During cooling, the pulse count of a PMV4 (pulse motor valve 4 ) is controlled

between 45pls and 500pls.The PMV4 opening is controlled on the basis of measurements provided by theTL3 tenperature sensor and PD pressure sensor (Subcool control),or TS3 temperature sensor and PS pressure sensor (super heat control).

2)During heating, the pulse count of a PMV4 is controlled between 0pls and 400pls.The PMV4 opening is controlled on the basis of measurements provided bythe TD1 or TD2.

5 Control Outline

45

500 O

peni

ng o

f PM

V3

(pls

)

Minimum Maximum

PMV3

120

3000

Ope

ning

of P

MV

1 (p

ls)

Minimum Maximum

PMV1

45

500

Ope

ning

of P

MV

4 d

urin

g co

olin

g (p

ls)

Minimum Maximum

PMV4 0

400

Ope

ning

of P

MV

4 d

urin

g he

atin

g (p

ls)

Minimum Maximum

PMV4

− 67 −

2. Outdoorfan control

1. Cooling fan control1)Outdoor fan speed (mode) is controlled on the basis of measurements provided by

the Pd pressure sensor.2)For a specified period after the start of cooling operation, the header outdoor unit

controls outdoor fan speed (mode) on the basis of measurements provided by thePd pressure sensor. Follower units, on the other hand, control outdoor fan speed(mode) on the basis of measurements provided by the TE1 temperature sensor.

* Available control modes are 0 (at rest) to 63.

• The fan speedcorresponding to the highest mode varies with the HPcapacity of the outdoor unit.

2. Heating fan control1)Outdoor fan speed (mode) is controlled on the basis of measurements provided by

the TE1 or TE2 temperature sensor.2) If TE1 or TE2 > 25°C is continuously detected for 8 minutes, the fan may be turned off.

However, this condition is the same as normal thermostat OFF, so that fanoperation will be restarted.

3)For a specified period after air conditioner startup and during defrosting, thiscontrol is disabled.

4)When refrigerant is in extremely short supply, this control may cause the airconditioner to be repeatedly turned on and off.

• The fan speedcorresponding to the highest mode varies with the HPcapacity of the outdoor unit.

3. Control while follower unit at restThe fan is operated at mode 1 to prevent the accumulation of refrigerant inside theoutdoor heat exchanger.

3. Capacitycontrol

1)The compressors of the header and follower units are controlled on the basis ofcapacity demand issued by indoor controllers.

2)The two compressors featured in an outdoor unit operate on a rotationalbasis, so that, every time they come to a stop, their order of startup changes.

3)Where two follower units are connected, every time the system goesthermostat OFF or all the compressors featured in the follower units come to astop, the priority startup order of the follower units changes, as they are alsosubject to rotational operation.


1.95

2.00

2.15

2.35

2.45

2.65

3.0

[Highest mode]

[Current mode + 1](Mode raised as rapidly as every second)

[Current mode + 1]/50 seconds

[Hold]

[Current mode + 1]/75 seconds(Mode raised up to 13)

(Mode 1 to highest)

[Current mode - 1]/50 secondsMode being lowered:Highest mode - 1 → 1

Mode being raised: mode 0 → 1

[Current mode - 1](Mode lowered as rapidly as every two seconds)(down to mode 0)

Interval control[Mode [0]: 180 secondsMode [1]: 30 seconds]

Pdpressure

25

8

6

4

2

Zone A: Lowest mode, timer count for forced compressor shutdown

Zone B: -2/15 seconds (down to lowest mode)

Zone C: -1/15 seconds (down to lowest mode)

Zone D: Hold (staying at current mode)

Zone E: +1/15 seconds (up to highest mode)

Zone F: Highest mode

TE1 temperature(°C)

(MPa)

− 68 −

4. Oil leveldetection control

1)Judgment as to whether an optimum amount of oil is present in the compressorcases is made on the basis of the temperature readings of sensors TK1 to TK5.This control function is performed by the header unit and each follower unitindividually.

2) In concrete terms, judgment is based on the relationship between the temperature measurements provided by TK1, TK2, on the one hand, and those provided by TK4 or TK5, on the other. If there is depletion, oil equalization control takes over.

3)This control function is performed whenever at least one compressor is inoperation.

• Oil level detection takesplace regardless of thenumber of compressors,whether one or two.

• Rough guide for oil leveljudgment1) If TK1 - TK4 14 °C,

oil level of compressor 1is optimum.

2) If TK2 - TK4 14 °C,oil level of compressor 2is optimum.


(TD2)

(TK2) (TK1)

(TD1)

(TK4)

SV

SV

SV SV

SV

SV

(TK5)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

Oil separator

Oil Header




Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

SV

Solenoidvalve

Capillarytube

Checkvalve

Checkjoint Strainer Temperature

sensor

Symbol

Distributor

− 69 −

5. Oilequation control

This control function is aimed at preventing compressors from running out of oil by evening out the oil supply to outdoor units, and is basically performed by opening/closing solenoid valves SV3A, SV3B, SV3C, SV3D. There are three control patterns as described below. (For a schematic diagram of oil equalization control, see page 57.)

1. Preparatory controlIf the oil level judgment result in the memory continues to be “low” for 30 seconds,SV3B is turned on, with SV3D turned on and off intermittently.

• Oil accumulated in the oilseparator is returned to thecompressor.

2. Oil equation controlThis control function is performed to transfer oil to the outdoor unit whose oil level islow from other outdoor units. It takes place whenever the header unit registers a lowoil level result while at least one of its compressors is turned on or at least one of thefollower units issues an oil level equation request.This control function does not apply to a header unit-only system (no follower unitsconnected).

• This is normal oilequalization control.

3. Oil depletion protection controlThis control function is performed if oil equation control fails to achieve an optimumoil level. In concrete terms, if a low oil level situation continues for 30 minutes, the unit is brought to a protective shutdown, followed by a restart 2 minutes and 30 secondslater. If protective shutdown is repeated three times, the error is confirmed as final.(There will be no more restarts.) The check code is “H07”.

• This protective control isperformed when aprolonged low oil level isdetected.

6. Refrigerant/oil recovery control

1. Cooling oil (refrigerant) recovery controlPerformed during cooling, this control function aims to: periodically collect anyrefrigerating oil condensate that has built up in inter-unit gas pipes and indoor unitsand return it to outdoor units when the compressor operation command isinadequate; and prevent the accumulation of refrigerant in outdoor heat exchangerswhile cooling operation is in progress under low outside air temperature conditions.It is managed by the header outdoor unit.1)Control commencement conditions

• When cooling operation has continued for at least 2 hours• When cooling operation has started (compressors have just been turned on, though

this does not always happen depending on outside air temperature conditions).2)Control details

• All compressors currently in operation are operated at the minimum speed, with those currently not in operation turned on.

• Indoor units are set to the cooling oil (refrigerant) recovery control mode, with theirindoor PMVs opened to a certain degree.

• Compressors are operated at the target speed.• After recovery control is performed for a specified period of time, it is terminated, and

normal cooling operation resumes.

• Cooling oil recovery controltakes place approximatelyevery 2 hours.

• Control duration is about 2 to 5 minutes, though it variesaccording to the operatingconditions of the system.

2. Heating refrigerant (oil) recovery controlPerformed during heating, this control function aims to recover any liquid refrigeranttrapped inside indoor units that have been turned off. It also serves the additionalpurposes of recovering indoor/outdoor refrigerant after defrosting and recovering oilpresent in outdoor heat exchangers during heating overload operation.This control function is managed by the header outdoor unit.1)Control commencement conditions

• When heating operation has started (compressors have just been turned on)• When heating takes over upon completion of defrosting• When heating operation has continued for 60 minutes

2)Control details• All compressors currently in operation are operated at the minimum speed, with those

currently not in operation turned on.• Indoor units are set to the heating refrigerant (oil) recovery control mode, with their

indoor PMVs opened to a certain degree.• Compressors are operated at the target speed.• Upon completion of refrigerant recovery for all the indoor units, normal cooling

operation resumes.

• Heating oil recovery controltakes place approximatelyevery hour.

• Control duration is about 2 to 10 minutes, though it variesaccording to loadingconditions.

• Compressor rotationalspeed varies with controlconditions, indoor unitcapacity, and outdoor unitspecification.


− 70 −

7. Defrostingcontrol (reversedefrosting method)

1. Defrosting commencement conditions• During heating operation, the cumulative duration of operation in which TE1 and

TE2 sensor temperature falls below frost formation temperature is measured, andwhen this reaches 55 minutes, defrosting control is introduced. (Just after startupor upon changeover from cooling to heating, the target cumulative duration is 25minutes.)

* If the outdoor units are a combination of different models, all the units begin engaging in defrosting control as soon as one of them satisfies defrosting commencementconditions.

• Frost formation temperature is -1.5 °C.

• If the outdoor units are acombination of differentmodels, defrostingoperation, once started,cannot be manuallyterminated for about 2minutes.

2. Details of defrosting control1)All compressors currently in operation are operated at the minimum speed.2)When a specified amount of time passes from the time the compressors reached

the minimum speed, the outdoor fans are turned off by closing the 4-way valves.And the PMV4 opening operated at the target opening for defrosting control.

3)All compressors currently not in operation are turned on and operated at the target rotational speed for defrosting control.

• To protect the refrigeratingcycle circuit, the fan modemay be controlled duringdefrosting.

3. Defrosting termination conditions• Defrosting termination conditions are met when the TE1 and TE2 temperature

sensor measurement reaches a specified value (roughly 12 °C) a certain periodof time after the commencement of defrosting control. In that event, defrostingtermination control takes over.* If the outdoor units are a combination of different models, defrosting termination

control commences when all the units satisfy the defrosting termination conditions.As long as one or more outdoor units are yet to satisfy the defrosting terminationconditions, those that have engage in standby operation.

• During defrosting control,compressors are controlledso that their speeds do notexceed 76.6 rps.

4. Details of defrosting termination control1)Compressors are operated at the standby operation speed.2)When a specified amount of time passes, the 4-way valves are opened.3) Indoor heating refrigerant recovery control is performed.For control details, see “ 6. Refrigerant/oil recovery control”.

• During standby operation,compressor speed is in the24-33.5 rps range.(It varies from outdoor unit to outdoor unit.)


− 71 −

8.Hot gas defrostingcontrol

1. Hot gas defrosting commencement conditions• During heating operation, the cumulative duration of operation in which

the TE1 (or TE2) temperature sensor falls below the frost formation temperature is recorded. Once the time duration exceeds 30 minutes, the hot gas defrosting control begins.

*If the outdoor units are in a combination (module), only the outdoor unitsthat are operating their compressors, will perform the hot gas defrosting control.

・ Frost formation temperature is -1.5°C.

2. Details of hot gas defrosting control1) SV51 and SV52 are opened.2) PMV1 (and PMV3) are closed. 3)The outdoor fans are turned off.4) Compressors are operated at the target rotational speed for hot gas

defrosting control.

・ When outside temperature is –10°C or lower, hot gas defrosting control is disabled. (Only Reverse defrosting). This is due to insufficient capacity output, from the outdoor unit, resulting in potentially unacceptable performance

3. Hot gas defrosting termination conditions• Hot gas defrosting termination conditions are met when the TS1 (or TG1

and TG2) temperature sensor measurement reaches a value of 12°C for a specified value of time (within 4.5 minutes) after the commencement of hot gas defrosting control. In the event that these values are achieved the hot gas defrosting termination control will take over.

*For module installations (multiple outdoor units). During Hot gasoperation, ALL outdoor units must meet the termination conditionings for the hot gas control. If not the following defrost operation (25 minutes later if TE1 (or TE2) temperatures measurements continues below the frost formation temperature) will results in a standard reverse defrosting operation.

・ During hot gas defrosting control,compressors are controlled so thattheir speeds do not exceed 76.6 rps.

4. Details of hot gas defrosting termination control1) Open the PMV1 (and PMV3) to a certain degree.2) SV51 and SV52 are closed.3) Normal heating operation resumes.

9. Releasevalve control

1. SV2 gas balance controlThis control function is aimed at achieving gas balance by opening SV2 whilecompressors are turned off so as to reduce their startup load the next time they areturned on. It is individually performed by the header outdoor unit and each followeroutdoor unit.1)Control conditions

• In cooling, compressors have been turned off.• In heating, the header unit has been shut down.

2)Control details• The control point is changed according to P (Pd pressure - Ps pressure) registered

just before the compressors were turned off.• When P P1, SV2 is opened. When this results in P < P2, SV2 is closed.• When P < P1, SV2 is closed.

2. SV2 high pressure release controlThis control function is aimed at mitigating pressure rise while a compressor is inoperation at low speeds.1)Control conditions

• Heating operation is in progress (except periods of defrosting control).• A lone compressor from the header unit is in operation at low speeds of up to 36 rps.

2)Control details• When Pd pressure becomes 3.4 MPa, SV2 is opened.• When Pd pressure becomes 2.8 MPa, SV2 is closed.

3)Termination conditions• Shutdown, thermostat OFF, defrosting operation, or cooling operation.• The number of header unit compressors in operation increases to two .• At least one follower unit compressor is turned on.• The speed of the compressor rises to 40 rps or more.

3. SV2 low pressure release controlThis control function is aimed at preventing a rapid fall in pressure during transientoperation. It is individually performed by the header outdoor unit and each followeroutdoor unit.The control is always provided except during periods of stoppage or thermostat OFF.1)Control details

• When Ps pressure becomes 0.16 MPa, SV2 is opened.• When Ps pressure becomes > 0.20 MPa, SV2 is closed.


(Unit: MPa)

Control points for Pd

pressureP1, P2

gnilooCgnitaeH

Header unit compressors Header unit compressors Header unit compressors

NOFFOFFO

P1 P2 P1 P2 P1 P2

Header unit 1.3 1.1 1.3 1.1 — —

Follower unit 1.3 1.1 1.3 1.1 0.5 0.4

− 72 −

9. Releasevalve control (cont’d)

4. SV41, 42 low pressure release controlThis control function is aimed at providing low pressure protection, and is individually performed by the header unit and each follower unit.The control takes place during defrost operation, heating startup pattern controloperation, and cooling operation.1)Control details (heating)

When Ps pressure becomes 0.1 MPa, SV41, 42 are opened; when Pspressure becomes 0.15 MPa, SV41, 42 are closed.

2)Control details (cooling)When Ps pressure and Pd pressure become 0.14 MPa and 1.8 MPa,respectively, SV41 and 42 are opened; when Ps pressure and Pd pressurebecome 0.19 MPa and 2.2 MPa, respectively, SV41 and 42 are closed.

5. SV52 high pressure release controlThis control function is aimed at mitigating pressure rise and is only performed by the header unit.1)Control details (heating)

When Pd pressure and compressor speed become 3.4 MPa and 38 rps,respectively, during heating, with a single compressor in operation, SV52 is opened; when Pd pressure becomes 2.7 MPa, or compressor speed 64 rps,SV52 is closed.

10. Highpressure release compressor shutdown control

This control function is aimed at automatically shutting down a compressor in an outdoor unit depending on Pd pressure. It is individually performed by the header unit and each follower unit.

1)Control details• Compressors are shut down when Pd pressure reaches or exceeds P01 and P02.• The compressor restart prevention timer (2 minutes 30 seconds) is set, and the control

terminated.

• When Pd P01 compressorNo. 2 (the last one of twocompressors in terms ofstartup order in a twocompressor configuration) is shut down.

•

11. Caseheater control

There are two types of case heaters: a compressor case heater and an accumulator case heater. This control function is aimed at preventing the accumulation of refrigerant in those cases, and is performed by all outdoor units.If the power supply has not been turned on for a specified period before a post-installation test run, compressor failure may occur. Similarly, when starting compressors after a long period of no power supply, it is recommended that the power supply be turned on for a while before operation is resumed, just like a post-installation test run.This control function is sometimes used alongside an electrical charging of the compressor motor windings. In this case, a charging sound may be heard, but this is normal.

1)Control details• The heaters are turned on while the compressors are turned off.• The heaters are turned off when T0 sensor temperature becomes 28 °C, and are

turned back on when T0 sensor temperature becomes 25 °C.• When the compressors are turned on, the heaters are kept on for 10 minutes.


When Pd P02 compressorNo. 1 (the first compressorin terms of startup order) isshut down.

P01 P02

Heating 3.45 3.5

Cooling 3.85 3.9

(unit : MPa)

− 73 −

12. A3-IPDUcontrol

IPDU controls inverter compressors by issuing commands relating to compressor speeds, speed increases/decreases, and current release control values via the interface P.C. board.The main control functions of the IPDU P.C. board are described below.

1. Current release controlTo prevent inverter input current from exceeding the specified value, outputfrequency is controlled with AC input current as detected by T02 mounted on thecontrol P.C. board.

Current control values for various outdoor units are shown below.

2. Heat sink temperature detection control1)This control function is aimed at protecting IPM from overheating via a thermistor

(TH sensor) mounted in the compressor drive module (Q201) of A3-IPDU.2)When TH about 75~80 °C *1 is detected, the fan operation mode is raised by

one step, followed by a series of additional step-ups right up to the highest modeat a rate of one step/5 seconds.

3)After step 2), the normal fan mode is restored when TH falls to < about 75~80 °C *1.4)When TH 97 °C, compressors are shut down.5)Compressors are restarted 2 minutes and 30 seconds later, with an error count of

1 recorded. If this is repeated four times (error count reaches 4), the error isconfirmed as final. The error [P07] is displayed. (There will be no more restarts.)* Possible causes of the confirmed error include a heat buildup in the outdoor unit, fan

abnormality, blockage of the cooling duct, and IPDU P.C. board fault.* The TH temperature used in this control function is the highest registered by A3-

IPDU1, A3-IPDU2.3. Overcurrent protection control

1)When the overcurrent protection circuit on an IPDU P.C. board detects anabnormal current, the compressor is shut down.

2)The compressor is restarted 2 minutes and 30 seconds later, with an error countof 1 recorded. If the compressor successfully operates for at least 10 minutes after a restart, the error count is cleared.

3) If the error count reaches 8, the error is confirmed as final.

• A3-IPDU1 and 2 are each provided with a TH sensor.

4. High pressure SW control1)When the high pressure SW of an inverter compressor is activated, the

compressor is shut down with an error count of 1 recorded.2)The compressor is restarted 2 minutes 30 seconds later, and, if it successfully

operates for at least 10 minutes, the error count is cleared.3) If the error count reaches 4, the error is confirmed as final. The check code “P04”

is displayed.

• Connected to A3-IPDU, thehigh-pressure SW isnormally closed.


Zone C

Zone B

Zone A

Zone DI1

I2

Current

Zone A:Compressors are operated normally.Zone D:The current operating frequency is maintained.Zone B:Operating frequency is lowered.Zone C:The lowering of operating frequency is halted

to maintain the current frequency.

Outdoor unit HP capacity I1 I2

22 23.7 23.2

20 21.6 21.1

18 19.5 19.0

16 17.5 17.0

14 15.2 14.7

12 12.7 12.2

10 10.5 10.0

8 10.0 9.5

− 74 −

*1 It changes depending onthe model and temperaturecondition.

<Other points to note>1 Cooling operation under low outside temperature conditions

1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control basedon the indoor TC sensor.

2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control.3) When the discharge temperature sensor reading falls below 60°C, the frequency may be increased above

the level called for by the command received from the indoor unit.

2 PMV (Pulse Motor Valve)1) When the power is turned on, PMVs generate a tapping sound as they are initialized. If this sound is not

heard, there is a possibility of faulty PMV operation. However, in a noisy environment, it may simply bedrowned out by ambient noise.

2) Do not separate the actuator (head section) from any PMV during operation. It may result in an inaccurateopening.

3) When transporting (relocating) the set, do not, under any circumstances, keep the actuator separated. Itmay damage the valve by causing it to close and exposing it to pressure from sealed liquid.

4) When reattaching the actuator after its removal, push it in firmly until a click sound is heard. Then, turn thepower off and back on again.

<Schematic diagram for oil equation control>

SV41

SV3C

SV42

圧縮機


SV

SV

SV

SV

SV

SV

SV

FP

Header unit（MMY-MAP2206*） Follower unit （MMY-MAP1206*）

FM

TS1

PMV1

TE1

TO

SV51

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

SV3A

SV3B

TL1

SV SV52

SV

PMV4

TL3

SV41

SV3C

HPS

SV42

圧縮機


SV

SV

SV

SV

SV

SV

SV

FM

TS1

PMV1

4 way valve

TE1 PMV3

TL2

TO

SV51

TS3

SV2

SV3D

TD1

TK4

TK5

TD2

TK2 TK1

HPS

SV3A

SV3B

TE2

TL1

SV SV52

SV

TG1

TG2

PMV4

TL3

FP

Balance Pipe

ON

Liquid Pipe

ON

Gas Pipe

Pressure sensor

(low pressure)

Oil

Header

Conpressor

2

Pressure sensor

(high pressure)

Conpressor

1

Fusible

Plug

4 way valve

Pressure sensor

(low pressure)

Pressure sensor

(high pressure)

HPS HPS

Oil

Header

Conpressor

2

Conpressor

1

Fusible

Plug

Unit transferring oil

Unit receiving oil

− 75 −

6-1-1. Control Specifications

NO. Item Specification outline Remarks

1

Upon power supply reset

1. Identification of outdoor unitWhen the power supply is reset, the outdoor unit is identified, and control isredirected according to the identification result.

2. Indoor fan speed and air flow direction control availability settingsSettings such as indoor fan speed and air flow direction control availability arereplaced on the basis of EEPROM data.

3. If power supply reset is performed in the wake of a fault, the check code is cleared. If the abnormality persists after the Start/Stop button on the remote controller ispressed to resume operation, the check code is redisplayed on the remotecontroller.

2

Operation selection

1. The operation mode changes in response to an operation selection commandissued via the remote controller.

Ts: Temperature settingTa: Room temperature

3

Room temp. control

1. Adjustment range - remote controller temperature setting (°C)

2. In heating operation, the temperature setting may be fine-tuned via the DN code“06”.

Factory default

Shift in heating suction temperature(not applicable to remote controller thermo operation)

4

Automatic capacity control

1. The outdoor unit determines the operational capacities of indoor units accordingto the difference between Ta and Ts.

Ts: Temperature settingTa: Room temperature

Remote controller command Control outline

STOP Air conditioner shutdown

FAN Fan operation

COOL Cooling operation

DRY Drying operation

HEAT Heating operation

COOL/DRY HEAT

Wired type 18~29 18~29

Wireless type 18~30 16~30

SET DATA 0 2 4 6

Temperature setting adjustment +0°C +2°C +4°C +6°C

SET DATA

2

SD

SB

S9

S7

S5

S3S0

Cooling

+2

+1

Ts

-1

S3

S5

S7

S9

SB

SD

SF

S0

Heating

+1

Ts

-2

-1

Ta(°C)

Ta(°C)

6. Applied control and Functions6-1. Applied Control for Indoor Unit

− 76 −

5

Fan speed control

1. The fan operates in one of the four speed modes of “HIGH (HH)”, “MED (H)”,“LOW (L)” and “AUTO” on the basis of a command issued via the remotecontroller. (Concealed duct high static pressure type: HH only)

2. In AUTO fan speed mode, the air speed changes according to the differencebetween Ta and Ts.

<Cooling>

HH > H+ > H >L+ > L > ULor LL

• Control is identical in remote controller thermo and body thermo operation.Speed modes shown in < > apply to cooling operation under AUTO airconditioner operation mode.

• In AUTO fan speed mode, the fan speed remains the same for 3 minutes eachtime a speed change occurs.However, a speed change command issued via the remote controller canoverride this, and the fan speed changes accordingly.

• At the beginning of cooling operation, a higher speed (steeper downwardtemperature gradient) is chosen.

• As long as the temperature difference remains on a boundary line, the fan speed stays the same.<Heating>

Figures inside ( ) applies to remote controller thermo operation.Figures outside ( ) applies to body thermo operation.Speed modes shown in < > apply to heating operation under AUTO air conditioner operation mode.

DN code “32”“0000”: Body thermo“0001”: Remote controller thermo

• In AUTO fan speed mode, the fan speed remains the same for 1 minute eachtime a speed change occurs.However, a speed change command issued via the remote controller canoverride this, and the fan speed changes accordingly.

• At the beginning of heating operation, a higher speed (steeper upwardtemperature gradient) is chosen.

• As long as the temperature difference remains on a boundary line, the fan speed stays the same.

• When TC2 60 °C, the fan speed is raised by one step.

TC2: Indoor heat exchanger sensor temperature

3. If the air conditioner goes thermo OFF during heating operation, the fan speeddrops down to LL (breeze).

“HEATING STANDBY ” displayed


-0.5

Tsc

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0Ta (°C)

HH

H

L

L

L

H+

L+

A

B

C

D

E

F

G

<HH>

<HH>

<HH>

<HH>

<H>

<H>

<L+>

+4.0

+3.0

+2.0

+1.0

Tsh

-1.0

Ta (°C)

(+2.0)

(+1.5)

(+1.0)

(+0.5)

(0)

(-0.5)L

L+

H

H+

HH

E

D

C

B

A

<L+>

<H>

<H+>

<HH>

<HH>

− 77 −

6

Cold air discharge prevention control

1. In heating operation, the upper limit of the fan tap is set according to the lower ofwhichever is the higher between TC2 sensor and TCJ sensor temperatures, onthe one hand, and TC1 sensor temperature, on the other.• If the fan continuously operates in zone B for 6 minutes, it automatically moves

into zone C.• During defrosting, the control point is shifted by +6°C.

TCJ: Indoor heat exchanger sensor temperature• In zones D and E,

priority is given to the remote controller fan speed setting.

• In zone A, “HEATING STANDBY ” is displayed.

7

Freeze prevention control (low temp. release)

1. During cooling, the air conditioner is operated in the manner described belowaccording to the temperature readings of the TC1, TC2 and TCJ sensors.• If zone J operation is detected for 5 minutes, the air conditioner is forced into

thermo OFF.• In zone K, the timer is put on pause, with the current timer count retained.• If zone I operation is detected, the timer count is cleared, and the air conditioner

returns to normal operation.• If continuous zone J operation forces the air conditioner into thermo OFF, the

indoor fan is operated in breeze mode until it moves into zone I.The control is terminated under the following conditions:

Termination conditions1)TC1 12°C, TC2 12°C, and TCJ 12°C2)Passage of 20 minutes after stoppage

2. During cooling, the air conditioner is operated in the manner described belowaccording to the temperature readings of the TC2 and TCJ sensors.• If zone M operation is detected for 45 minutes, the air conditioner is forced into

thermo OFF.• In zone N, the timer is put on pause, with the current timer count retained.• When the air conditioner goes back into zone M, timer count is resumed from

the retained value.• If zone L operation is detected, the timer count is cleared, and the air conditioner

returns to normal operation.

TC1: Indoor heat exchanger sensor temperature

Reset conditions1)TC1 12°C, TC2 12°C and TCJ 12°C2)Passage of 20 minutes after stoppage

* With models withoutTC2, TC2 is not partof the controlparameters.


E

B

28

30

32

26

20

16

A

D

C

(°C)

Zone A:OFFZone B:26 °C or above and

below 28 °CBreeze

Zone C:28 °C or above and below 30 °CLow

Zone D:30 °C or above and below 32 °CMedium

Zone E:High

P1

Q1

J

KaI

(°C)

Temperature in ( ): If the temperature is below this value when the power is turned on, the air conditioner is forced into thermo OFF.

TC1 TC2, TCJ

P1 10°C(5°C) -10°C

Q1 0°C -14°C

P2

Q2

M

N

L(°C) TC2, TCJ

P2 5

Q2 -2.0

− 78 −

8

Cooling oil (refrigerant) recovery control

While the outdoor unit is recovering cooling oil (refrigerant), the indoor units perform the following control tasks: [common for operational (cooling thermo ON / thermo OFF / FAN), as well as non-operational indoor units]

1)Open the indoor PMV to a certain degree.2)Engage in recovery control for a specified period of time and return to normal

cooling operation at the end of this period upon terminating the control.3)Operate the drain pump throughout the recovery control period and for about 1

minute after it.

• Recovery operationnormally takes placeroughly every 2 hours.

• The opening positionof the indoor PMVdepending on the type and capacity of theindoor unit.

9

Heating refrigerant (oil) recovery control

While the outdoor unit is recovering heating refrigerant (oil), the indoor units perform the following control tasks:

1)Open the indoor PMV to a certain degree.2)Control the indoor fan according to the operation mode.

[Indoor units operating in heating thermo ON/OFF state]Let the indoor fan continue operating, but turn it off if the temperature of the indoor heat exchanger drops.

[Indoor units operating in FAN mode]Turn off the indoor fan and display “HEATING STANDBY ” on the remote controller.

[Non-operational indoor units]Keep the indoor fan turned off.3)Terminate the recovery operation depending on the TC2 temperature reading.

The timing of termination is determined by each indoor unit.4)Operate the indoor fan and drain pump for about 1 minute after the termination

of the recovery operation. (Applicable to 4-way air discharge cassette type, 2-way air discharge cassette type and 1-way air discharge cassette type)

• Recovery operationnormally takes placeroughly every hour.


10

Defrosting control

While the outdoor unit is engaged in defrosting control, the indoor units perform the following control tasks:

1)Open the indoor PMV to a certain degree.2)Control the indoor fan according to the operation mode.

[Indoor units operating in heating thermo ON/OFF state]Let the indoor fan continue operating for a while, but turn it off as the temperature of the indoor heat exchanger drops.

[Indoor units operating in FAN mode]Let the indoor fan continue operating.

[Non-operational indoor units]Keep the indoor fan turned off.3)As defrosting control comes to an end, it gives way to heating refrigerant (oil)

recovery control.(For control details, see “9. Heating refrigerant (oil) recovery control” above.)

• For defrostingcommencementconditions, see “ 7.Defrosting control(reverse defrostingmethod)” above.


11

Short intermittent operation compensation control

1. For 5 minutes after startup, the system is forced to continue operating even if itreaches the thermo OFF region.

2. However, priority is given to cooling/heating selection, operation standby, andprotective control, so that there is no overriding of thermo OFF in these cases.

12

Drain pump control

1. During cooling (including DRY operation), the drain pump is operated at all times.

2. If the float switch is activated while the drain pump is in operation, the drain pumpcontinues operating, with the relevant check code displayed.

3. If the float switch is activated while the drain pump is turned off, thermo OFF isforced on the air conditioner, with the drain pump put into operation. If the floatswitch continues to be activated for about 5 minutes, the drain pump is turned off,with the relevant check code displayed.

Check code [P10]

13Elimination of residual heat

1. When the air conditioner is turned off after engaging in heating operation, theindoor fan is operated for about 30 seconds in “breeze” mode.


− 79 −

14

Filter sign display(not applicable to wireless type)* Provided in

the separately mounted type, TCB-AX21E.

1. The indoor fan’s cumulative hours of operation are counted, and when theseexceed the prescribed value (150H/2500H), a filter replacement signal is sent tothe remote controller to display a filter sign on it.

2. When a filter reset signal is received from the remote controller, the timermeasuring cumulative hours is cleared. If the prescribed hours have beenexceeded, the hours count is reset, with the sign on the remote controller displayerased.

“FILTER ” displayed

15

Operation standbyHeating standby

<Operation standby> .......... Displayed on remote controller

1. When any of the DN codes listed below is displayed• “P05” - Detection of an open phase in the power supply wiring• “P10” - Detection of indoor flooding in at least one indoor unit• “L30” - Detection of an interlock alarm in at least one indoor unit

2. Forced thermo OFF• “COOL/DRY” operation is unavailable because at least one indoor unit is

operating in “HEAT” mode.• “HEAT” operation is unavailable because at least one indoor unit is operating in

“COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/FP.C. board ON).

3. All indoor units not able to engage in any of the above operations stand by inthermo OFF state.

4. The indoor fan has been turned off because the system is engaged in a heatrefrigerant (oil) recovery operation.

• “OPERATIONSTANDBY ”displayed

No display providedon wireless remotecontroller

<Heating standby> .......... Displayed on remote controller

1. Normal thermo OFF• During heating, the indoor unit goes thermo OFF as the heating temperature

setting is reached.

2. During heating, the fan rotates at a breeze speed (UL or lower) or remainsstationary to prevent cold air from being discharged (including defrostingoperation).

3. Forced thermo OFF• “HEAT” operation is unavailable because at least one indoor unit is operating in

“COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/FP.C. board ON).

• “HEATINGSTANDBY ”displayed


Filter service life 2500H 150H

Type

4-way air discharge cassette type1-way air discharge cassette type(SH, YH)2-way air discharge cassette typeUnder ceiling typeConcealed duct standard typeConcealed duct high static pressure typeSlim duct type

High wall typeFloor standing typeFloor standing concealed typeFloor standing cabinet type

− 80 −

16

Selection of central control mode

1. The range of operations that can be performed via an indoor unit remote controller can be determined through the setting of the central controller.

2. Setting details

• In the case of a wiredremote controller,“CENTRALCONTROL INPROGRESS ” isdisplayed (lit up) while in central controlmode.

• The display blinkswhen a controlfunction inaccessibleto a remote controlleris chosen.

• A wireless remotecontroller has thesame set of controlfunctions, althoughthere is no display.When a controloperation isperformed via awireless remotecontroller while incentral control mode,a peep sound alert (5times) is provided.

17

Louver control 1. Louver position setting• When the louver position is changed, the louver turns all the way down before

settling in the set position.• Louver position is adjustable in the range shown in the diagrams below.

• During group operation, position setting can be performed individually orcollectively.

2. Swing setting• The “SWING” sign is displayed, along with alternating images as shown below.

• During group operation, swing setting can be performed individually orcollectively.

3. Set louver positions

18

DC motor 1. When the fan is turned on, the positions of the stator and rotor are determined.(The motor turns in incremental steps.)

2. The fan operates in accordance with commands issued by the indoor controller.

Note: If the fan is rotating while the air conditioner is turned off due to an inflow of outside air or some other reason, the indoor unit may operate without turning on the fan motor.

Note: If fan motor lock is detected, the indoor unit is turned off, with an error display provided.

Check code “P12”


TCC-Link central control

(O: Accessible : Inaccessible)

Operation via TCC-

Link central control

Operation via RBC-AMT32ERBC-

AMT32E display

Start/stop selection

Operation mode

selection

Timer setting

Temperature setting

Fan speed setting

Air flow direction setting

Individual O O O O O O

“CENTRAL CONTROL

INPROGRESS”

Central 1 O O O O

Central 2 O O

Central 3 O O O O

Central 4 O O O O O

During cooling/drying During heating/fan-only operation

In all operation modes

(alternating)

4-way 1-way (SH) 2-way Under ceiling

Normal stop Downward Closed Upward Horizontal

Abnormal stop Downward No change Upward Horizontal

Heating standby Upward Upward Upward Horizontal

Oil/refrigerant recovery Upward Upward No change Horizontal

− 81 −

6-1-2. Optional Connector Specifications of Indoor P.C. BoardF

an o

utpu

t

HA

Opt

iona

l out

put

FIL

TE

RO

ptio

nal e

rror

CH

KO

pera

tion

chec

k

DIS

PD

ispl

ay m

ode

EX

CT

Dem

and

CN

32

CN

61

CN

60

CN

80

CN

70

CN

71

CN

72

CN

73

1 2 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 1 2 1 2 1 2 1 2

Fun

ctio

nC

onne

ctor

No.

Pin

No.

DC

12V

Out

put

Sta

rt/s

top

inpu

t

0V(C

OM

)

Rem

ote

cont

rolle

r dis

ablin

g in

put

In-o

pera

tion

outp

ut

DC

12V

(CO

M)

Ala

rm o

utpu

t

DC

12V

(CO

M)

Def

rost

ing

outp

ut

The

rmos

tat O

N o

utpu

t

Coo

ling

outp

ut

Hea

ting

outp

ut

Fan

out

put

DC

12V

(CO

M)

DC

12V

(CO

M)

Ext

erna

l err

or in

put

0V Che

ck m

ode

inpu

t

0V Dis

play

mod

e in

put

0V Dem

and

inpu

t

0V

Sta

rt/s

top

inpu

t for

HA

(J0

1: In

pla

ce/R

emov

ed =

Pul

se in

put (

fact

ory

defa

ult)

/Ste

p in

put)

Ena

bles

/dis

able

s st

art/s

top

cont

rol v

ia r

emot

e co

ntro

ller

ON

dur

ing

oper

atio

n (H

A a

nsw

erba

ck s

igna

l)

ON

whi

le a

larm

ON

ON

whi

le o

utdo

or u

nit d

efro

sted

ON

whi

le r

eal t

herm

osta

t ON

(co

mpr

esso

r O

N)

ON

whi

le a

ir co

nditi

oner

in c

oolin

g or

rel

ated

ope

ratio

n (C

OO

L, D

RY

or

cool

ing

unde

r AU

TO m

ode)

ON

whi

le a

ir co

nditi

oner

in h

eatin

g op

erat

ion

(HE

AT

or

heat

ing

unde

r AU

TO

mod

e)

ON

whi

le in

door

fan

ON

(ai

r cl

eane

r in

use

or

via

inte

rlock

wiri

ng)

Spe

cific

atio

nR

emar

ks

Gen

erat

es te

st c

ode

L30

and

auto

mat

ical

ly s

huts

dow

n ai

r co

nditi

oner

(on

ly if

con

ditio

n pe

rsis

ts

for

1 m

inut

e)

Fact

ory

defa

ult s

ettin

g to

be

hum

idifi

er (e

vapo

rativ

e +

drai

n pu

mp

OFF

)U

sed

for c

ontro

l of o

ptio

nal e

rror i

nput

(dis

play

of a

ctio

n of

pro

tect

ive

devi

ce fo

r equ

ipm

ent c

onne

cted

ext

erna

lly)

*"O

ptio

nal e

rror i

nput

" set

ting

to b

e pe

rform

ed v

ia th

e re

mot

e co

ntro

ller (

DN

= 2

4)

Use

d fo

r in

door

ope

ratio

n ch

eck

(pre

scrib

ed o

pera

tiona

l sta

tus

outp

ut, s

uch

as in

door

fan

"H"

or

drai

n pu

mp

ON

, to

be g

ener

ated

with

out c

omm

unic

atio

n w

ith o

utdo

or u

nit o

r re

mot

e co

ntro

ller)

Prod

uct d

ispl

ay m

ode

- Com

mun

icat

ion

just

bet

wee

n in

door

uni

t and

rem

ote

cont

rolle

r ena

bled

(upo

n tu

rnin

g on

of p

ower

)Ti

mer

sho

rt-ci

rcui

ted

out (

alw

ays)

Impo

ses

ther

mos

tat O

FF

on

indo

or u

nit

Fac

tory

def

ault

setti

ng: O

N w

hen

indo

or u

nit i

n op

erat

ion

and

OF

F w

hen

indo

or u

nit a

t res

t*

Fan

can

be

oper

ated

on

its o

wn

by p

ress

ing

FAN

but

ton

on r

emot

e co

ntro

ller

(DN

= 3

1)

Ext

erna

ler

ror

inpu

t

"FIL

TE

R/o

ptio

nal/h

umid

ifier

se

tting

" in

put

− 82 −

6-1-3. Test Operation of Indoor Unit

Check function for operation of indoor unit (Functions at indoor unit side)This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system.However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this function within several minutes.

[How to operate]

1) Short-circuit CHK pin (CN71 on the indoor P.C. board).The operation mode differs according to the indoor unit status in that time.Normal time: Both float SW and fan motor are normal.Abnormal time: Either one of float SW or fan motor is abnormal.

2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition toshort-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30pls) can be setto the indoor PMV only.When open DISP pin, the maximum opening degree (1500pls) can be obtained again.

[How to clear]

Open CHK pin. While the system is operating, it stops once but automatically returns to operation after several minutes.

• To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree.• For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board),

refer to the indoor P.C. board MCC-1570.

Short-circuit of CHK pin

Normal timeAbnormal time

DISP pin open DISP pin short circuit

Fan motor (H) (H) Stop

Indoor PMV (*) Max. opening degree (1500pls) Min. opening degree (30pls) Min. opening degree (30pls)

Louver Horizontal Horizontal Immediate stop

Drain pump ON ON ON

Communication All ignored All ignored All ignored

P.C. board LED Lights Lights Flashes

− 83 −

6-1-4. Method to Set Indoor Unit Function DN Code

(When performing this task, be sure to use a wired remote controller.)

<Procedure> To be performed only when system at rest

1 Push the + + buttons simultaneously and hold for at

least 4 seconds.

The unit No. displayed first is the address of the header indoor unit in group control.Then the fan and louver of the selected indoor unit move.

2 Each time the “Select unit” side of the button is pressed,

one of the indoor unit Nos. under group control is displayed in

turn. Then the fan and louver of the selected indoor unit move.

3 Use the button to select the CODE No. (DN code) of the

desired function.

4 Use the button to select the desired SET DATA associated

with the selected function.

5 Push the button. (The display changes from flashing to

steady.)

• To change the selected indoor unit, go back to step 2.• To change the selected function, go back to step 3.

6 When the button is pushed, the system returns to normal off state.

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

5 4

1 26

3

UNIT LOUVER

− 84 −

Function CODE No. (DN Code) Table (Includes All Functions Needed to Perform Applied Control on Site)

DN Item Description At shipment

01Filter display delay timer 0000: None

0002: 2500H0004: 10000H

0001: 150H0003: 5000H

According to type

02Dirty state of filter 0000: Standard

0001: High degree of dirt (Half of standard time)0000: Standard

03Central control address 0001: No.1 unit

0099: Unfixedto 0064: No.64 unit 0099: Unfixed

04Specific indoor unit priority

0000: No priority 0001: Priority 0000: No priority

06Heating temp shift 0000: No shift

0002: +2°C to0001: +1°C0010: +10°C(Up to +6 recommended)

0002: +2°C(Floor type 0000: 0°C)

0dExistence of [AUTO] mode

0000: Provided0001: Not provided (Automatic selection from connected outdoor unit)

0001: Not provided

0FCooling only 0000: Heat pump

0001: Cooling only (No display of [AUTO] [HEAT])0000: Heat pump

10Type 0001: 4-way Air Discharge Cassette Depending on model

type

11Indoor unit capacity 0000: Unfixed 0001 to 0034 According to capacity

type

12 Line address 0001: No.1 unit to 0030: No.30 unit 0099: Unfixed

13 Indoor unit address 0001: No.1 unit to 0064: No.64 unit 0099: Unfixed

14Group address 0000: Individual

0002: Follower unit of group0001: Header unit of group 0099: Unfixed

19

Louver type(Air direction adjustment)

0000: No louver 0001: Swing only According to type

0002: (1-way Air Discharge Cassette type, Under Ceiling type)0003: (2-way Air Discharge Cassette type)0004: (4-way Air Discharge Cassette type)

1E

Temp difference of [AUTO] mode selection COOL HEAT, HEAT COOL

0000: 0 deg to 0010: 10 deg 0003: 3 deg(Ts±1.5)(For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)

28Automatic restart of power failure

0000: None 0001: Restart 0000: None

2ASelection of option/error input (CN70)

0000: Filter input0002: None

0001: Alarm input (Air washer, etc.) 0002: None

2EHA terminal (CN61) select

0000: Usual0002: Fire alarm input

0001: Leaving-ON prevention control 0000: Usual(HA terminal)

31 Ventilating fan control 0000: Unavailable 0001: Available 0000: Unavailable

32 TA sensor selection 0000: Body TA sensor 0001: Remote controller sensor 0000: Body TA sensor

33 Temperature unit select 0000: °C (at factory shipment) 0001: °F 0000: °C

F0Swing mode 0001: Standard

0003: Cycle swing0002: Dual swing 0001: Standard

F1Louver fixed position(Louver No.1)

0000: Release0005: Downward discharge position

0001: Horizontal discharge position 0000: Not fixed










− 85 −

5d

High-ceiling adjustment(Air flow selection)

1-way air discharge cassette (SH)

2-way air discharge cassette

* The high-ceiling installation of model AP007 to AP012 can only beundertaken when the combined capacity of the indoor units connected is100% or less than the capacity of the outdoor unit.Do not proceed with high-ceiling installation if this limit is exceeded.

4-way air discharge cassette

Under ceiling

0000: Standard

Built-in filter 2-way air discharge cassette0000: Standard filter (factory default)0001: Super long-life filter4-way air discharge cassette0000: Standard filter (factory default)Under ceiling0000: Standard filter (factory default)Concealed duct standard0000: Standard filter (factory default)0001: High-performance filter (65%, 90%)

Static pressure selection Concealed duct standard0000: Standard (factory default)0001: High static pressure 10003: High static pressure 20006: Low static pressure

Slim Duct0000: Standard (factory default)0001: High static pressure 10003: High static pressure 20006: High static pressure 3

60Timer setting(wired remote controller)

0000: Available (can be performed) 0001: Unavailable (cannot be performed)

0000: Available

DN Item Description At shipment

Value Type AP015, AP018 AP024

0000 Standard (factory default) 3.5 m or less 3.8 m or less

0001 High-ceiling (1) 4.0 m or less 4.0 m or less

0003 High-ceiling (3) 4.2 m or less 4.2 m or less

Value Type AP007~AP030 AP036~AP056

0000 Standard (factory default) 2.7 m or less 2.7 m or less

0001 High-ceiling (1) 3.2 m or less (*) 3.0 m or less

0003 High-ceiling (3) 3.8 m or less (*) 3.5 m or less

ValueType AP009~AP012 AP015~AP018

Air flow at outlet 4 directions 3 directions 2 directions 4 directions 3 directions 2 directions

0000 Standard (factory default) 2.7 m 2.8 m 3.0 m 2.8 m 3.2 m 3.5 m

0001 High-ceiling (1) – – – 3.2 m 3.5 m 3.8 m

0003 High-ceiling (3) – – – 3.5 m 3.8 m –

ValueType AP024~AP030 AP036~AP056

Air flow at outlet 4 directions 3 directions 2 directions 4 directions 3 directions 2 directions

0000 Standard (factory default) 3.0 m 3.3 m 3.6 m 3.0 m 3.3 m 3.6 m

0001 High-ceiling (1) 3.3 m 3.5 m 3.8 m 3.3 m 3.5 m 3.8 m

0003 High-ceiling (3) 3.6 m 3.8 m – 3.6 m 3.8 m –

Value Type AP015~AP056

0000 Standard (factory default) 3.5 m or less

0001 High-ceiling (1) 4.0 m or less

− 86 −

Type

DN code “10”

*1 Default value stored in EEPROM mounted on service P.C. board

Indoor Unit Capacity

DN code “11”

*1 Default value stored in EEPROM mounted on service P.C. board

Value Type Model

0000 1-way Air Discharge Cassette MMU-AP SH

0001*1 4-way Air Discharge Cassette MMU-AP H

0002 2-way Air Discharge Cassette MMU-AP WH

0003 1-way Air Discharge Cassette (Compact) MMU-AP YH

0004 Concealed Duct Standard MMD-AP BH

0005 Slim Duct MMD-AP SPH (SH)

0006 Concealed Duct High Static Pressure MMD-AP H

0007 Under Ceiling MMC-AP H

0008 High Wall MMK-AP H

0010 Floor Standing Cabinet MML-AP H

0011 Floor Standing Concealed MML-AP BH

0013 Floor Standing MMF-AP H

Compact 4-way Air Discharge Cassette MMU-AP MH

0016 Fresh Air Intake indoor unit (Duct type) MMD-AP HFE

Setup data Model Setup data Model

0000* *Invalid 0014 -

MMU-AP0054MH 0015 036 type

MMD-AP0054SPH 0016 -

MMU-AP0056MH 0017 048 type

MMD-AP0056SPH 0018 056 type

0001 007 type 0019 -

0002 - 0020 -

0003 009 type 0021 072 type

0004 - 0022 -

0005 012 type 0023 096 type

0006 - 0024 -

0007 015 type 0025 -

0008 - 0026 -

0009 018 type 0027 -

0010 - 0028 -

0011 024 type ～ -

0012 027 type 0034 -

0013 030 type

0040

0041

005 type

005 type

− 87 −

6-1-5. Applied Control of Indoor Unit

Control system using remote control interface (TCB-IFCB4E2)

Wiring and setting

• In the case of group control, the control system functions as long as it is connected to one of the indoor units(control P.C. board) in the group. If it is desired to access the operation and error statuses of other units, relevant signals must be brought to it from those units individually.

Control items

(1) Start/Stop input signal Start/stop of unit(2) In-operation signal Output present while unit in normal operation(3) Error signal Output present while alarm (e.g. serial communication error or operation of protective

device for indoor/outdoor unit) being activated

Wiring diagram of control system using remote control interface (TCB-IFCB4E2)Input IFCB4E2: No-voltage ON/OFF serial signalOutput No-voltage contact (in-operation and error indication)

Contact capacity: Max. AC 240V, 0.5A

123456

1234

CN61T10

(yellow)

123456

CN13

CN06

Indoor control P.C. board

Start/stop inputCOM (GND)

Remote controller disabling/enabling inputIn-operation signal output

COM (+12V)Error signal output

Power source 220-240V

ON side

COM

Start signal input

In-operation signal output

Error signal output

OFF side

Stop signal input

TCB-IFCB4E2

− 88 −

Ventilating fan control from remote controller

[Function]

• The start/stop operation can be operated from the wired remote controller when air to air heat exchanger orventilating fan is installed in the system.

• The fan can be operated even if the indoor unit is not operating.• Use a fan which can receive the no-voltage A contact as an outside input signal.• In a group control, the units are collectively operated and they can not be individually operated.

1. Operation

Handle a wired remote controller in the following procedure.* Use the wired remote controller during stop of the system.* Be sure to set up the wired remote controller to the header unit. (Same in group control)* In a group control, if the wired remote controller is set up to the header unit, both header and follower units

are simultaneously operable.

1 Push concurrently + + buttons for 4 seconds or more.

The unit No. displayed firstly indicates the header indoor unit address in the group control.In this time, the fan of the selected indoor unit turns on.

2 Every pushing button, the indoor unit numbers in group control are displayed

successively.

In this time, the fan of the selected indoor unit only turns on.

3 Using the setup temp or button, specify the CODE No. 31.

4 Using the timer time or button, select the SET DATA. (At shipment: )

The setup data are as follows:

5 Push button. (OK if display goes on.)

• To change the selected indoor unit, go to the procedure 2 ).• To change the item to be set up, go to the procedure 3 ).

6 Pushing returns the status to the usual stop status.

2. Wiring

SET DATA Handling of operation of air to air heat exchanger or ventilating fan

Unavailable (At shipment)

Available

UNIT LOUVER

12

12

CN32FAN DRIVE

(2P WHI)

Compact 4-way Air Discharge Cassette type4-way Air Discharge Cassette type1-way Air Discharge Cassette type (2 series) Concealed Duct Standard typeSlim Duct typeUnder Ceiling typeHigh Wall type

model :

Relay (DC12V, procured locally) Corresponds to the relay upto one that the rated currentof the operation coil is approx. 75mA

Outside control input of fan

To terminal


Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.

Corresponds up to a relay in which rated current of the operation coil is approx. 75mA

Other type models: Correspond up to a relay in which rated current of the operation coil is approx. 16mA (Does not correspond to a terminal block type relay on the market.)

− 89 −

Leaving-ON prevention control

[Function]

• This function controls the indoor units individually. It is connected with cable to the control P.C. board of theindoor unit.

• In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. 2Eis set to the connected indoor unit.

• It is used when the start operation from outside if unnecessary but the stop operation is necessary.• Using a card switch box, card lock, etc, the forgotten-OFF of the indoor unit can be protected.• When inserting a card, start/stop operation from the remote controller is allowed.• When taking out a card, the system stops if the indoor unit is operating and start/stop operation from the

remote controller is forbidden.

1. Control items

1) Outside contact ON: The start/stop operation from the remote controller is allowed.(Status that card is inserted in the card switch box)

2) Outside contact OFF: If the indoor unit is operating, it is stopped forcedly.(Start/Stop prohibited to remote controller)(Status that card is taken out from the card switch box)

* When the card switch box does not perform the above contact operation, convert it using a relay with bcontact.

2. Operation

Handle the wired remote controller switch in the following procedure.* Use the wired remote controller switch during stop of the system.

1 Push concurrently + + buttons for 4 seconds or more.

2 Using the setup temp or button, specify the CODE No. .

3 Using the timer time or button, set to the SET DATA.

4 Push button.

5 Push button. (The status returns to the usual stop status.)

3. Wiring

Power peak-cut from indoor unitWhen the relay is turned on, a forced thermostat-OFF operation starts.

12

12

34

34

56

56

CN61T10

(YEL)

Relay (procured locally)


Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.

Power supplyOutside contact (Card switch box, etc: Procured locally)

* In the figure, the contact indicatesa status that the card is taken out.

12

12EXCT

(2P plug: RED)

CN73Relay (procured locally)

Relay coil signal


• Wiring example

Note) Determine the cable length between the indoor or outdoor control P.C. board and the relay within 2m.

− 90 −

The outdoor fan high static pressure support and priority operation mode setting (cooling / heating / number of units / or priority indoor unit) functions are available by setting relevant switches provided on the interface P.C. board of the outdoor unit.

Purpose/characteristicsThis function is used when connecting a duct to the discharge port of an outdoor unit (as part of, for example, unit installation on the floor by floor installation.)

SetupTurn ON the DIP switch [SW10, Bit 2] provided on the interface P.C. board of the outdoor unit. This function must be enabled with every discharge duct connected outdoor unit for both of the header and follower units.

SpecificationIncrease the speed of the propeller fan units on the outdoor fan to allow the installation of a duct with a maximum external static pressure not greater than specified in the table below. If a discharge duct with a resistance greater than 15 Pa (1.5 mmAq) is to be used, enable this function. The maximum external static pressures of single units are shown below (Table 1). In the case of combined use of multiple outdoor units, set all the units to the same maximum external static pressure as the one with the lowest maximum external static pressure (see table2).

Table 1: Maximum External Static Pressures of Single Outdoor Units

(*) Calculate duct resistance from outdoor unit air flow.

Table 2: Maximum External Static Pressures for Combined Use of Single Units

(1-1) Standard models

6-2-1. Outdoor Fan High Static Pressure Shift

ModelCombined

horsepower output MMY- Unit 1 Unit 2 Unit 38 MAP0806* MAP0806* 60

10 MAP1006* MAP1006* 6012 MAP1206* MAP1206* 5014 MAP1406* MAP1406* 5016 MAP1606* MAP1606* 4018 MAP1806* MAP1806* 5020 MAP2006* MAP2006* 4022 MAP2206* MAP2206* 4024 AP2416* MAP1206* MAP1206* 5026 AP2616* MAP1406* MAP1206* 5028 AP2816* MAP1606* MAP1206* 4030 AP3016* MAP1606* MAP1406* 4032 AP3216* MAP1606* MAP1606* 4034 AP3416* MAP1806* MAP1606* 4036 AP3616* MAP2006* MAP1606* 4038 AP3816* MAP2206* MAP1606* 4040 AP4016* MAP2006* MAP2006* 4042 AP4216* MAP2206* MAP2006* 4044 AP4416* MAP2206* MAP2206* 4046 AP4616* MAP1606* MAP1606* MAP1406* 4048 AP4816* MAP1606* MAP1606* MAP1606* 4050 AP5016* MAP1806* MAP1606* MAP1606* 4052 AP5216* MAP2006* MAP1606* MAP1606* 4054 AP5416* MAP2206* MAP1606* MAP1606* 4056 AP5616* MAP2006* MAP2006* MAP1606* 4058 AP5816* MAP2206* MAP2006* MAP1606* 4060 AP6016* MAP2206* MAP2206* MAP1606* 40

Combination of outdoor units Maximum externalstatic pressure

(Pa)

6-2. Applied Control for Outdoor Unit

− 91 −

Model MMY- MAP0806* MAP1006* MAP1206* MAP14B6* MAP1406* MAP1606* MAP18B6* MAP1806* MAP2006* MAP2206*Maximum external static pressure (Pa) 60 60 50 40 50 40 40 50 40 40(*) Outdoor nuit air flow (m3/h) 9700 9700 12200 12200 12200 12600 17300 17300 17900 18500

Model

MMY- Unit 1 Unit 2 Unit 3

8 MAP0806* MAP0806* 60

10 MAP1006* MAP1006* 60

12 MAP1206* MAP1206* 50

14 MAP1406* MAP1406* 50

16 MAP1606* MAP1606* 40

18 MAP1806* MAP1806* 50

20 MAP2006* MAP2006* 40

22 AP2216* MAP1206* MAP1006* 50

24 AP2416* MAP1206* MAP1206* 50

26 AP2616* MAP1406* MAP1206* 50

28 AP2816* MAP1406* MAP1406* 50

30 AP3016* MAP1606* MAP1406* 40

32 AP3216* MAP1606* MAP1606* 40

34 AP3416* MAP1806* MAP1606* 40

36 AP3616* MAP1806* MAP1806* 50

38 AP3816* MAP2006* MAP1806* 40

40 AP4016* MAP2006* MAP2006* 40

42 AP4216* MAP1406* MAP1406* MAP1406* 50

44 AP4416* MAP1606* MAP1406* MAP1406* 40

46 AP4616* MAP1606* MAP1606* MAP1406* 40

48 AP4816* MAP1606* MAP1606* MAP1606* 40

50 AP5016* MAP1806* MAP1606* MAP1606* 40

52 AP5216* MAP1806* MAP1806* MAP1606* 40

54 AP5416* MAP2006* MAP2006* MAP1406* 40

56 AP5616* MAP2006* MAP2006* MAP1606* 40

Combined

horsepower output

Combination of outdoor units Maximum external

static pressure

(Pa)

(1-2) Standard models ； -ME model only

− 92 −

(1-3) Standard models ; C/O model only

ModelCombined

horsepower output MMY- Unit 1 Unit 2 Unit 38 MAP0806* MAP0806* 6010 MAP1006* MAP1006* 6012 MAP1206* MAP1206* 5014 MAP14B6* MAP14B6* 5016 MAP1606* MAP1606* 4018 MAP18B6* MAP18B6* 4020 MAP2006* MAP2006* 4022 MAP2206* MAP2206* 4024 AP2416* MAP1206* MAP1206* 5026 AP2616* MAP14B6* MAP1206* 4028 AP2816* MAP14B6* MAP14B6* 4030 AP3016* MAP1606* MAP14B6* 4032 AP3216* MAP1606* MAP1606* 4034 AP3416* MAP18B6* MAP1606* 4036 AP3616* MAP18B6* MAP18B6* 4038 AP3816* MAP2206* MAP1606* 4040 AP4016* MAP2206* MAP18B6* 4042 AP4216* MAP2206* MAP2006* 4044 AP4416* MAP2206* MAP2206* 4046 AP4616* MAP1606* MAP1606* MAP14B6* 4048 AP4816* MAP1606* MAP1606* MAP1606* 4050 AP5016* MAP18B6* MAP1606* MAP1606* 4052 AP5216* MAP18B6* MAP18B6* MAP1606* 4054 AP5416* MAP18B6* MAP18B6* MAP18B6* 4056 AP5616* MAP2006* MAP18B6* MAP18B6* 4058 AP5816* MAP2206* MAP18B6* MAP18B6* 4060 AP6016* MAP2206* MAP2206* MAP1606* 40

Combination of outdoor units Maximum external static pressure

(Pa)

− 93 −

(2-1) High efficiency type

ModelCombined

horsepower output MMY- Unit 1 Unit 2 Unit 3

20 AP2026* MAP1006* MAP1006* 6022 AP2226* MAP1206* MAP1006* 5036 AP3626* MAP1206* MAP1206* MAP1206* 5038 AP3826* MAP1406* MAP1206* MAP1206* 5040 AP4026* MAP1406* MAP1406* MAP1206* 5042 AP4226* MAP1406* MAP1406* MAP1406* 5044 AP4426* MAP1606* MAP1406* MAP1406* 4054 AP5426* MAP2006* MAP2006* MAP1406* 40

Combination of outdoor units Maximum externalstatic pressure

(Pa)

As for High efficiency type, -ME model do not make a line up.

(2-2) High efficiency type ; C/O model only

ModelCombined

horsepower output MMY- Unit 1 Unit 2 Unit 3

14 MAP1406* MAP1406* 5018 MAP1806* MAP1806* 5020 MAP2006* MAP1006* MAP1006* 6022 MAP2206* MAP1206* MAP1006* 5026 AP2616* MAP1406* MAP1206* 5028 AP2816* MAP1406* MAP1406* 5030 AP3016* MAP1606* MAP1406* 4034 AP3416* MAP1806* MAP1606* 4036 AP3616* MAP1206* MAP1206* MAP1206* 5038 AP3816* MAP1406* MAP1206* MAP1206* 5040 AP4016* MAP1406* MAP1406* MAP1206* 5042 AP4216* MAP1406* MAP1406* MAP1406* 5044 AP4416* MAP1606* MAP1406* MAP1406* 4046 AP4616* MAP1606* MAP1606* MAP1406* 4050 AP5016* MAP1806* MAP1606* MAP1606* 4052 AP5216* MAP2006* MAP1606* MAP1606* 4054 AP5416* MAP2006* MAP2006* MAP1406* 4056 AP5616* MAP2006* MAP2006* MAP1606* 4058 AP5816* MAP2206* MAP2006* MAP1606* 40

Combination of outdoor units Maximum external static pressure

(Pa)

Purpose/characteristicsThis function allows switching between priority cooling and priority heating.Four patterns of priority operation mode setting are available as shown in the table below. Select a suitable priority mode according to the needs of the customer.

Setup

CAUTION

In the case of the priority indoor unit mode, it is necessary to set up the specific indoor unit chosen for priority operation (a single unit only).

(1) Outdoor unit setup method (header unit)

SW11Operation

Bit 1 Bit 2

OFF OFF Priority heating (factory default)

ON OFF Priority cooling

OFF ONPriority operation based on No. of units in operation (priority given to the operation mode with the largest share of units in operation)

ON ONPriority indoor unit (priority given to the operation mode of the specific indoor unit set up for priority operation)

6-2-2. Priority Operation Mode Setting

− 94 −

(2) Indoor unit setup method for priority indoor unit modeThe setting can be changed only when the system is at rest. (Be sure to turn off the system prior to this operation.)

1 Push the + + buttons simultaneously and hold for atleast 4 seconds. The display window will start flashing in a little while.Verify that the displayed CODE No. is 10.

If the displayed CODE No. is not 10, press the button to erase the display and repeat the procedure from the beginning.(Note that the system does not respond to remote controller operation for about 1 minute after the button is pushed.)(In the case of group control, the indoor unit No. displayed first indicates the header unit.)

2 Each time the button is pushed, one of the indoorunit Nos. under group control is displayed in turn. Select the indoor unit whose setting is to be changed.The fan and flap of the selected indoor unit then come on, so that the position of this unit can be confirmed.

3 Use the button to select the CODE No. 04.

4 Use the button to select the SET DATA 0001.Priority set 0001 No priority set 0000

5 Push the button.The setup is finished when the display changes from flashing to steady.

6 Upon finishing the setup, push the button. (This finalizes the setting.)When the button is pushed, the display goes blank, and the system returns to normal off state.(Note that the system does not respond to remote controller operation for about 1 minute after the button is pushed.)

NOTE

Priority can be given to only one indoor unit. If more than one indoor unit is accidentally set to priority, an check code (L5 or L6: Duplicated indoor unit priority setting) will be displayed.All units displaying L5 have been set to 0001 (priority). Keep the unit to which priority should be given as it is, and change the value back to 0000 (no priority) for all the rest.

noitpircseDCheck code

Duplicated indoor unit priority setting (The unit is set to 0001.)

Duplicated indoor unit priority setting (The unit is set to 0000.)

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

5 4

1 263

UNIT LOUVER

− 95 −

6-2-3. Applied Control of Outdoor UnitOptional control P.C. boards provide access to a range of functions as listed below.

Layout of Outdoor Unit Interface P.C. Board* DIP switch settings and jumper wire statuses vary from function to function.

No. Function

Outdoor unit for control P.C. board connection

Control P.C. board to be used Outdoor unit interface P.C. board setting*

PCDM4E PCMO4E PCIN4E Connector No. DIP SW No. Bit Jumper to be removed

1

Power peak-cut Control (Standard) Header unit – – CN513(blue) SW07 1 –

Power peak-cut Control (For one input function) Header unit – – CN513(blue) SW07 1 J16

2 Power peak-cut Control (Enhanced Functions) Header unit – – CN513(blue) SW07 1.2 –

3 Snowfall Fan Control Header unit – – CN509(black) – – –

4 External master ON/OFF Control Header unit – – CN512(blue) – – –

5 Night operation (sound reduction) Control Header unit – – CN508(red) – – –

6

Operation Mode Selection Control Header unit – – CN510(white) – – –

Operation Mode Selection Control (forced choice) Header unit – – CN510(white) – – J01

7 Error/Operation output Header unit – – CN511(green) – – –

8 Compressor Operation Output Individual outdoor unit – – CN514(green) – – –

9 Operating Rate Output Header unit – – CN514(green) SW16 1 –

Connector layout

DIP switch layout

Interface P.C. Board

Jumper wire layout

− 96 −

6-2-4. Power peak-cut Control (Standard)

OperationAn external power peak-cut control signal limits the peak capacity of the outdoor unit.L1: Power peak-cut control indication lampSW1: Power peak-cut control ON switch (ON as long as target power peak-cut control has been reached or exceeded, normally OFF)*1SW2: Power peak-cut control OFF switch (OFF as long as target power peak-cut control has not been reached or exceeded, normally ON)*1*1 The inputs of SW1 and SW2 can be either pulse (100 msec or longer) or step signals.

Do not turn on SW1 and SW2 simultaneously.* Be sure to provide a contact for each terminal.

Power peak-cut control settings

(2) Two-core cable support SMMS-e models allows ON/OFF power peak-cut control to be implemented using a power peak-cut control ON input (SW1) alone, provided that the J16 jumper wire on the interface P.C. board of the header outdoor unit has been removed.

Power peak-cut control P.C. board SW1 SW2 L1

Interface P.C. board of header outdoor unit

NO 1 tiB 70WSFFO 1 tiB 70WS

Power peak-cut control ON signal received ON OFF ON 0% (forced stop) 60% capacity (upper limit regulated)

Power peak-cut control OFF signal received OFF ON OFF 100% (normal operation) 100% (normal operation)

PJ17CN513SW07

TB1

[ON]

[OFF]

TB2COM

ONCOMOFFBit 2 OFF

L1

SW1

SW2SW2

SW1ONOFF

1 2 3 4

Connection cable

Locally procured

[OPERATION]

L1: Display lamp ensuring power peak cut control

Optional PCB

Header outdoor unit

Outdoor unit interface PCB

Displayrelay

Powersupply

Shieldwire

Shieldwire

For SW1 and SW2, be sure to provide no-voltage contacts for each terminal. The input signals of SW1 and SW2 may be pulse input (100 msec or more) or continuous make.

PJ17

TB1

TB2COM

ONCOMOFF

CN513SW07

Bit 2 ON

L1

SW1ONOFF

1 2 3 4

[ON]

[OFF]

Connection cable

Locally procured

[OPERATION]


Optional PCB

Header outdoor unit

J16 CutShield wire

Shield wire


Displayrelay

Powersupply

− 97 −

(1) Four-core cable support

<SW07 Bit 2 OFF (two-step control)>Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously).

Note 1: Specifications of display relay contact• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.

When connecting a conductive load (e.g. relay coil) to the display relay load, insert a surge killer CR (for an AC power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.The optional P.C. board should be connected to the header outdoor unit (U1).

OperationAn external power peak-cut control signal limits the peak capacity of the outdoor unit.L1: Power peak-cut control indication lampSW1: Power peak-cut control ON switch*1SW2: Power peak-cut control OFF switch*1*1 The inputs of SW1 and SW2 can be either pulse (100 msec or longer) or step signals.* Be sure to provide a contact for each terminal.

Extended power peak-cut control settingsSpecifications of display relay contact

Note 1: Specifications of display relay contact• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.

When connecting a conductive load (e.g. relay coil) to the display relay load, insert a surge killer CR (for an AC power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.The optional P.C. board should be connected to the header outdoor unit (U1).

Jumper wireJ16

InputSW1

yaler rotacidnI1 tiB 70WS

)1L(NO 1 tiBFFO 1 tiB

CutOFF 100% (normal operation) 100% (normal operation) OFF

ON 0% (forced stop) Approx. 60% (upper limit regulated) ON

<Electrical Rating>220 to 240 VAC, 10 mA or more, 1 A or less24 VAC, 10 mA or more, 1 A or less (non-conductive load)

Indication lamp External power peak-cut control signals

Peak capacity

I/F SW07 Bit 1

NOFFO2WS1WS1L

OFF OFF OFF 100% (normal operation) 100% (normal operation)

ON ON OFF 80% (upper limit regulated) 85% (upper limit regulated)

ON OFF ON 60% (upper limit regulated) 75% (upper limit regulated)

ON ON ON 0% (forced stop) 60% (upper limit regulated)

<Electrical Rating>220 to 240 VAC, 10 mA or more, 1 A or less24 VAC, 10 mA or more, 1 A or less (non-conductive load)

PJ17

TB1

[ON]

[OFF]

TB2COM

ONCOMOFF

CN513SW07

Bit 2 ON

L1

SW1ONOFF

1 2 3 4 SW2

Connection cable

Locally procured

[OPERATION]


Optional PCB

Header outdoor unit

Shield wire

Shield wire


Displayrelay

Powersupply

For SW1 and SW2, be sure to provide no-voltage contacts for each terminal.

6-2-5. Power peak-cut Control (Extended)

− 98 −

OperationAn external snowfall signal turns on the outdoor unit fan.

The input signal is recognized during its rising/falling phase.(After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.)The optional P.C. board should be connected to the header outdoor unit (U1).

OperationThe system is started/stopped from the outdoor unit.

The input signal is recognized during its falling phase. (After reaching the bottom of the falling edge, the signal must remain there for at least 100 ms.)

CAUTION

(1) Do not turn on the COOL (SW1) and HEAT (SW2) terminals simultaneously.(2) Be sure to provide a contact for each terminal.

External signal: No-voltage pulse contact

The optional P.C. board should be connected to the header outdoor unit (U1).

Terminal Input signal Operation

COOL(SW1)

All indoor units operate together

All indoor units operate together


COOL(SW1)

Turns on all indoor units

HEAT(SW2)

Turns off all indoor units

SW1: Snowfall detection switch (snowfall sensor)

71JP905NC

TB1

SW1

COM

HEAT

COOL

Locally procured

Optional PCBSnowfall sensor

Header outdoor unit

Connectioncable


Shieldwire

ON

OFF

ON

OFF

SW1: Operation input switchSW2: Stop input switch

71JP215NC

TB1

SW1

SW2

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit


Connectioncable

Shieldwire

ON

OFF

ON

OFF

6-2-6. Snowfall Fan Control

6-2-7. External master ON/OFF Control

− 99 −

6-2-8. Night operation (sound reduction) Control

OperationThis function decreases noise at night or other times as necessary.

The input signal is recognized during its rising/falling phase.(After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.)The optional P.C. board should be connected to the header outdoor unit (U1).

The system's capacity is reduced during low-noise operation.The table below provides a rough guide to this capacity reduction.

* Position of noise measuring device: 1 m from the front face of the set and 1.5 m above ground (anechoic sound)


COOL(SW1)

Night time control

Normal operation

Relative to maximum capacity

SW1: Night time signal switch

71JP805NC

TB1

SW1

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit


Connectioncable

Shieldwire

ON

OFF

ON

OFF

Model

MMY- Cooling Heating

MAP0806* 50 approx. 85% approx. 80%MAP1006* 50 approx. 70% approx. 65%MAP1206* 50 approx. 60% approx. 55%

MAP1406* 53 approx. 80% approx. 80%MAP1606* 53 approx. 70% approx. 70%

MAP1806* 54 approx. 65% approx. 65%MAP2006* 54 approx. 60% approx. 60%MAP2206* 54 approx. 55% approx. 55%

During low-noise mode*dB(A)

Capacity

− 100 −

MAP14B6* 50 approx. 50% −

MAP18B6* 53 approx. 60% −

6-2-9. Operation Mode Selection Control

NOTE

SW1: COOL mode selection switchSW2: HEAT mode selection switch

* The display “ (Operation mode selection control in progress)” appears on the remote controller

Indoor unit operation intervention function The statuses of indoor units operating in a mode different from the selected operation mode can be changed by changing the status of a jumper wire (J01) provided on the interface P.C. board of the header outdoor unit.


Input signalOperation Remarks

COOL (SW1) HEAT (SW2)

ON OFFOnly cooling

operation allowed*

OFF ONOnly heating

operation allowed*

OFF OFF Normal operation

SW1: Cooling mode specified input switchSW2: Heating mode specified input switch

71JP015NC

TB1

SW1

SW2

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit

Shieldwire

Connectioncable


Jumper lead Details of Processing

J01 connected (factory default)

Unallowed indoor units in a mode other than the selected operation mode are not treated as priority (thermostat OFF state).(Unallowed indoor units)

J01 cut

Indoor units in a mode other than the selected operation mode are forcibly switched to the selected operation mode.

Operation Mode Operation State Remote control

Cooling Air blow operation at fan speed set on remote control

, indicator is displayed.Heating Air blow operation at ultra-low

fan speed

Fan Regular air blow operation at fan speed set on remote control

PC board selection

mode Remote control operation/display

Normal , , , or can be selected When using the remote control, (mode select control) indicator is displayed.

Cool Only , , or can be selected

Heat Only or can be selected

− 101 −

6-2-10. Error/Operation Output

OperationIn-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.Error output: An error indication signal is output if an error occurs in at least one indoor/outdoor unit in the line.

Note 1: Output Relay (K1, K2) Contact Specifications• Output terminals (OUTPUT1, 2) must satisfy the following electrical rating.• When connecting a conductive load (e.g. relay coil) to loads K1 and K2, insert a surge killer CR (for an AC

power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.


<Electrical Rating>220-240 VAC, 10 mA or more, 1A or less24 VAC, 10 mA or more, 1 A or less (non-conductive load)

OUTPUT1

CN511 PJ20 OUTPUT2

OUTPUT3

TB1 L1

L2

12

56

43

C1 PS

PS

K1

K2

1 2 3 4

ONOFF

SW16

Optional PCB

Locally procured

(See “NOTE”)

Header outdoor unit


Shieldwire

C1 Attached connection cable 1 (4wires)

CN511 Connector on interface side (green)

K1, K2 Relays

L1 Error indication Lamp

L2 Operation indication Lamp

OUTPUT1 Error output

OUTPUT2 Operation output

PJ20 Connector on optional PCB side

PS Power supply unit

TB1 Terminal block

− 102 −

6-2-11. Compressor Operation Output

OperationWhen a compressor is in operation, a relay connected to the output terminal assigned to it is turned on (closed). When it is at rest, the relay is turned off (open).The output terminals are named OUTPUT1 and OUTPUT2 from left to right when facing the front of the outdoor unit, as shown in the diagram.

Note 1: Output Relay (K1, K2) Contact Specifications• Output terminals (OUTPUT1, 2) must satisfy the following electrical rating.• When connecting a conductive load (e.g. relay coil) to loads K1and K2 insert a surge killer CR (for an AC



1 2

OUTPUT1 OUTPUT2

Model featuring two compressors

Locally procuredOutdoor unit

Optional PCB (See “NOTE”)

TB1C2 L1 PS1 CTR1

K1 OUTPUT12

L2 PSSW16 3 CTR2

CN514 PJ20 K2 OUTPUT24

1 2 3 456


ONOFF

Shieldwire

C2 Connector cable 2 ( 2 )

CN514 Connector on interface side (green)

CTR1 Elapsed operation counter 1

CTR2 Elapsed operation counter 2

K1, K2 Relays

L1, L2 Operation indication LEDs

OUTPUT1 Compressor 1 operation output terminal

OUTPUT2 Compressor 2 operation output terminalPJ20 Connector on optional PCB side

PS Power supply unit

TB1 Terminal block

− 103 −

6-2-12. Operating Rate Output

OperationAt the output terminals, a signal is present (relay closed) or absent (relay open) in various combinations according to the system operation factor, as shown in the diagram.The operation rate (FA) is the percentage ratio of the current output of the system to the maximum output (100%).

off = Relay openon = Relay closed

* Connect the optional P.C. board to the header outdoor unit.

Note 1: Output Relay (K1, K2, K3) Contact Specifications• Output terminals (OUTPUT1, 2, 3) must satisfy the following electrical rating.• When connecting a conductive load (e.g. relay coil) to loads K1, K2 and K3, insert a surge killer CR (for an AC


Function SW16 OUTPUT1 OUTPUT2 OUTPUT3 Operation factor (FA)

System operation rate output

Bit 1: ONBit 2: OFF

off off off FA=0%

on off off 0%<FA<20%

off on off 20% FA<35%

on on off 35% FA<50%

off off on 50% FA<65%

on off on 65% FA<80%

off on on 80% FA<95%

on on on 95% FA


OUTPUT1

CN514 PJ20 OUTPUT2

OUTPUT3

TB1

12

56

43

C2K1

K2

K3

1 2 3 4

ONOFF

SW16MONITOR

Optional PCB

Locally procured

(See “NOTE”)

Header outdoor unit


Shieldwire

1

ONOFF

2 3 4

C2 Connector cable 2 ( 2 )

CN514 Connector on interface side (green)K1, K2, K3 Relays

MONITOR Monitoring device

OUTPUT1

OUTPUT2

PJ20 Connector on optional PCB sideTB1 Terminal block

OUTPUT3 Output terminal for each function

Output terminal for each functionOutput terminal for each function

− 104 −

7 TEST OPERATION7-1. Procedure and Summary of Test OperationA test operation is executed with the following procedure. When problems or an error occurs at any step, remove the causes of the problem or error referring to “8 TROUBLESHOOTING.”

Checks before test operation

Check that the main power supply is turned on.

Check basic items, mainly the installation work.Be sure to enter the check results in checklist 1 and 2.

This check is done after the power has been turned on.Check that the refrigerant circuit system is turned on normally.

Set up the addresses. Start the address setup in the outdoor/indoor units.Note: Operation does not start simply by powering-on.

Test operation

END

Carry out a test operation. Check air blowing and cooling/heating operation in the indoor unit.

− 105 −

7-2. Check Items before Test Operation (before powering-on)Prior to the test operation, check the following items to verify there are no problems with the installation work.

Main check items for electric wiringThe communication system differs from that of R22 or R407 refrigerant “Modular Multi System” air conditioners. Check wiring points again carefully.

(1) In the case that a central control system is not connected:

NOTE

The figure above does not show all the electric wires.For details, refer to the installation manuals for the outdoor unit, indoor unit, remote controller, or optional devices.

kcehCsmeti kcehc niaM

(1)Are the indoor and outdoor communication lines of the header unit connected to the U1/U2 terminals?

(2)Is the relay connector between the U1/U2 terminal and the U3/U4 terminal disconnect? (Set up at shipment from the factory)

(3) Is the communication line between outdoor units connected to the U5/U6 terminal?

(4)Is the terminator resistor (SW30-bit 2) on the interface PC board of the header unit turned on? (Set up at shipment from the factory)

(5) Is the end terminal of the shield wire open?

(6) Is the end terminal of the shield wire earthed at the header unit side?

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

A B A B A B A B

(1) (2) (4) (3)

(5)(6)

Outdoor unit

Indoor unit

Remotecontroller

Remotecontroller

Remotecontroller

Header unit (A) Follower unit (B) Follower unit (C)

− 106 −

(2) In the case that a central control system is connected (before address setup)

NOTE



(1)Are the indoor and outdoor communication lines of the header unit connected to the U1/U2 terminals?

(2)Is the relay connector between the U1/U2 terminal and the U3/U4 terminal disconnect? (Set up at shipment from the factory)(Keep the relay connector disconnected before address setup.)

(3) Is the communication line between outdoor units connected to the U5/U6 terminal?

(4) Is the communication line of the central control system connected to the header unit U3/U4 terminals of each refrigerant line?(The communication line of the central control system may be connected to the communication lines of the indoor/outdoor communication lines.)

(5) Is the terminator resistor (SW30-bit 2) on the interface PC board of the header unit turned on? (Set up at shipment from the factory)* After address setup and test operation check, turn on the SW30-bit 2 of the header unit for the

smallest line address, and turn off SW30-bit 2 of the header unit for other refrigerant lines.(See “7-4-3. Address Setup Procedure”)

(6) Is the end terminal of the shield wire open?

(7) Is the end terminal of the shield wire earthed at the header unit side?

(8)When the refrigerant line and the central control system of the DI-SDI series are connected:

Are Network adapter (TCB-PCNT30TLE2) correctly connected?

When the DI-SDI series operates with group, twin, or triple operation, are the adapters connected to the header unit of the indoor unit?

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

U1 U2 U5 U6

A B A B A B A B

(1) (4) (2)

(7) (6)

(5) (3)Central remote controller

U1 U2

U3 U4

U3 U4

U1 U2 U5 U6

U3 U4

Otherrefrigerant line

To indoor unit

Outdoor unit

Indoor unit

)C( tinu rewolloF)B( tinu rewolloF)A( tinu redaeH

Remotecontroller

Remotecontroller

Remotecontroller

To other refrigerant line

− 107 −

Checklist 1• Using Checklist 1, check that there are no problems with the installation work.

Is the capacity of the circuit breaker (Earth leakage breaker) appropriate?

Outdoor total capacity A Indoor unit A

A

A

A Header unit (A)

Follower unit (B)

Follower unit (C)

Is the gauge of the power cable correct?

mm2 Indoor unit mm2

mm2

mm2

Header unit (A)

Follower unit (B)

Follower unit (C)

Is the control communication line correct?

Indoor-outdoor connection terminals (U1, U2)

Outdoor-outdoor connection terminals (U5, U6)

Central control system connection terminals (U3, U4)

Is the power of indoor units supplied collectively?

Is it grounded to earth?

Is the resistance sufficient? (10 M M )rehgih ro or higher

V )%01± V 514-083 nihtiw( ?tneiciffus egatlov rewop niam eht sI

Is the diameter of connecting pipe correct?

Is the branch kit correct?

Is the water drain of the indoor unit arranged so that it flows without accumulation?

Is the heat insulation of pipes sufficient? (connecting pipes, branch kit)

Is there no short circuit of discharge air in the indoor/outdoor units?

After an airtightness test of the pipes, are vacuuming and adding of refrigerant executed?

Are the valves of all the outdoor units fully opened?

Gas side Liquid side Balance side

Header unit (A)

Follower unit (B)

Follower unit (C)

− 108 −

• Check the additional amount of refrigerant.

Checklist 2Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipe diameter onthe liquid side, the pipe length to be connected, and the corrective amount of refrigerant (B) according to Indoorunit horsepower, and the corrective amount of refrigerant (C) according to system horsepower.

(A)

First, enter the total length for each liquid pipe diameter in the following table, and then calculate the additionalamount of refrigerant by pipe length.

<Additional amount of refrigerant by pipe length>

Next, refer to the following table for the corrective amount of refrigerant (B) according to indoor unit horsepower.

according to indoor unit horsepower>

kg/HPCapacity of Indoor unit HPCorrective amount of refrigerant kg

Lastly, add the additional amount of refrigerant by pipe length (A) and the corrective amount of refrigerant by indoor unit horsepower (B) to the corrective amount of refrigerant by combined horsepower (C). This is the final additional amount of refrigerant.If a minus sign is indicated as the result, do not reduce or add the refrigerant (= 0 kg).

<Additional amount of refrigerant>

Additional amountof refrigerant = Actual liquid pipe length × Additional amount

of refrigerant per 1 m of liquid pipe

+ Corrective amount of refrigerantaccording to indoor unit horsepower +

φ6.4 0.025 ×　1.2　× 　　　　　= 　　　　　 kgφ9.5 0.055 ×　1.2　× 　　　　　= 　　　　　 kg

(B)

Pipe diameter on the liquidside

Standard amount ofrefrigerant

Total pipe length on each liquid side

m

Additional amount of refrigerant pipe diameter on each liquid side

kg

φ19.0 0.250 ×　1.2　× 　　　　　= 　　　　　 kgφ22.2 0.350 ×　1.2　× 　　　　　= 　　　　　 kg

φ12.7 0.105 ×　1.2　× 　　　　　= 　　　　　 kgφ15.9 0.160 ×　1.2　× 　　　　　= 　　　　　 kg

HP HP HPkg kg kg

Additional refrigerant charge amount Indoor unit Standard Indoorunit

Fresh Air intakeIndoor unit

Air to Air Heat Exchangerwith DX-coil

Additional refrigerant charge amount 0.4 0.2 0.2

Additional amount of refrigerant kg kg

Additional amount of refrigerant by pipe length (A) kg kgCorrective amount of refrigerant according to indoor unit horsepower (B) kg kgCorrective amount of refrigerant according to combined horsepower (C) kg kg

− 109 −

(C)

Next, refer to the Table 1-1~1-5 on P. 20 "Adding refrigerant" for the corrective amount of refrigerant (C) according to system horsepower.

Corrective amount of refrigerant according to system horsepower

After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit.(After turning on the main power, be sure to check in order: indoor unit outdoor unit.)

<Check on the outdoor unit>(1) Check that all the rotary switches, SW01, SW02, and SW03, on the interface PC board of the header unit are

set to “1.”(2) If another check code is displayed on the 7-segment display [B], remove the cause of the problem referring to

Section, “8 TROUBLESHOOTING”.(3) Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit. (L08:

Indoor address not set up)(If the address setup operation has already been completed during servicing, etc., the above check code is not displayed, and only “U1” is displayed on the 7-segment display [A].)

<Check on the indoor unit>(1) Display check on the remote controller (in the case of a wired remote controller)

Check that a frame, as shown in the following figure at left, is displayed on the LC display section of the remote controller.

If no frame is displayed, as shown in the above figure at right, the remote controller does not have a normal supply of power; check the following items.

Check the power supply of the indoor unit.Check the cabling between the indoor unit and the remote controller.Check whether there is a cutoff of wire around the indoor control PC board or not, and check for connection failures of the connectors.Check for failure of the transformer for the indoor electrical control box.Check for failure of the indoor control PC board.

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display [A]

7-segment display [B]

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Normal status (power supplied and operation stopped) When power is not supplied normally

doog oNdooG

7-3. Check at Main Power-on

− 110 −

This product requires address setup before operation.Follow this procedure for address setup.

(1) Address setup is not performed simply by turning on the power supply.(2) For indoor units, address setup can be done either by manual address setup or by automatic address setup:

Automatic address setup: Setup from SW15 on the interface PC board of the header unitManual address setup: Setup from the wired remote controller. (For details, refer to “7-4-3. Address Setup Procedure.”)

(3) Automatic setup usually takes about 5 minutes per line. In some cases, however, it may take up to 10 minutes.(4) It is unnecessary to operate the air conditioner to achieve address setup.

stnetnoc kcehc dna noitarepOmetIerudecorP

1 Indoor unit power-on Turn on the power of the indoor unit for the refrigerant line for which the address is to be set up.

2Outdoor unit power-on Turn on the power of all the outdoor units for the refrigerant line for which the address is to be

set up.

37-segment display check

Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit in the system where the address is to be set up.

4

Address setup start Confirm the items in “7-4-3. Address Setup Procedure,” and then set up the address according to the operation procedure.(Be careful to note that the setup operation may differ in group control and central control systems.)

Note:The address cannot be set up if switches are not operated.

5

Display check after setup

• After address setup, “U1” “ ” is displayed on the 7-segment display.• For follower outdoor units, “U2” to “U3” are displayed on the 7-segment display [A].• If a check code is displayed on the 7-segment display [B], remove the cause of the problem

referring to “8 TROUBLESHOOTING.”

6

System information check after setup

Using the 7-segment display function, check the system information of the scheduled system.(This check is executed on the interface PC board of the header unit.)

After the above checks, return rotary switches SW01, SW02, and SW03 to 1/1/1.

Rotary switch setup 7-segment display

SW01 SW02 SW03 [A] [B]

System capacity 1 2 3 [Number of horsepower] [H P]

Number of connected outdoor units 1 3 3 [Number of units] [ P]

Number of connected indoor units

1 4 3 [Number of connected units]

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display [A]

7-segment display [B]

7-4. Address Setup

7-4-1. Precautions

7-4-2. Address Setup and Check Procedure

− 111 −

7-4-3. Address Setup Procedure

Address setting procedure 11 Turn on indoor units first, and then turn on outdoor units.

2 About one minute after turning the power on, confirm that the 7-segment display on the interface. setacidni tinu roodtuo redaeh eht fo draob .C.P

3 Press SW 15 to start the automatic address setting.(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

4 .setacidni yalpsid tnemges-7 ehT .yalpsid eht no gnihsalf strats ,noitacidni eht retfA

si gnittes eht ,yalpsid eht no til niamer dna spots gnihsalf eht nehWcomplete.

Interface P.C. board on the header outdoor unit

REQUIREMENT

• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the groupbefore setting addresses.

• If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In thatcase, the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the group address to make one unit the header unit using wired remote controller.

1 erudecorp gnittes sserddA ot og:lortnoc lartnec oNCentral control of 2 or more refrigerant lines: go to Address setting procedure 2

(Example) When controlling a single refrigerant line centrally

When controlling 2 or more refrigerant lines centrally

Address setting procedure 2 erudecorp oT1 erudecorp oT

System wiring diagram

Outdoor

Indoor Indoor Indoor Indoor

OutdoorCentral remote

controller

Central remote

controller

Remote controller

Remote controller

Remote controller

Outdoor


Outdoor Central remote

controller

Remote controller

Remotecontroller

Remotecontroller

U. 1. L08 (U. 1. flash)

Auto 1 Auto 2 Auto 3

U. 1. - - - (U. 1. flash)

U. 1. - - - (U. 1. light)

SW04 SW05 SW15

SW01 SW02 SW03

D600 D601 D602 D603 D604

3

2,4

− 112 −

Address setting procedure 21 Set a system address for each system using SW 13 and 14 on the interface P.C. board on the

header outdoor unit of each system.(Factory default: Address 1)

NOTE

Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant line) or a "Digital Inverter" side.

Interface P.C. board on the header outdoor unit

Line address switches on the outdoor interface PC board ( : switch on, : switch off)

(Example) Controlling 2 or more refrigerant lines as a group

System wiring diagram

Outdoor


Outdoor

Remote controller

(Group control)

SW06 SW07 SW09 SW10

SW11 SW12 SW13 SW14

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW13 SW141

123456789

1011121314

××××××××××××××

×O

×O

×O

×O×O

×O×O

××O

O××O

O××O

O

××

××××O

O

O

O××××O

O

××××××××O

O

O

O

O

O

2 3 4 1 2 3 4SW13 SW14

11516171819202122232425262728

××O

OO

OO

O

O

OOO

O

O

×O

×O×O×O×O×O

×O

O

O

××O

O××O

O××O

O

O

O

××××O

O

O

O××××

O

O

××××××××OO

O

O

2 3 4 1 2 3 4

Not used for setup of line address (do not change setup.)

Lineaddress

Lineaddress

− 113 −

2 Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all theheader outdoor units that will be connected to the central control. (Factory default: disconnected)

3 Turn on indoor units first, and then turn on outdoor units.

4 About 1 minute after turning the power on, confirm that the 7-segment display on the interface. setacidni tinu roodtuo redaeh eht fo draob .C.P

5 Press SW 15 to start the automatic address setting.(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

6 .setacidni yalpsid tnemges-7 ehT.yalpsid eht no gnihsalf strats ,noitacidni eht retfA

si gnittes eht ,yalpsid eht no til sniamer , dna spots gnihsalf eht nehWcomplete.

7 Repeat steps 4 to 6 for other refrigerant lines.

8 After completing address setting of all systems, turn off DIP switch 2 of SW30 on the interface P.C.boards of all the header outdoor units connected to the same central control, except the unit that has the smallest address.(For unifying the termination of the wiring for the central control of indoor and outdoor units)

9 Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the header outdoorunit of each refrigerant line.

2

U. 1. L08 (U. 1. flash)

Auto 1 Auto 2 Auto 3

U. 1. - - - (U. 1. flash)

U. 1. - - - (U. 1. light)

U1 U2 S U3 U4 U5 U6 S

SHIELD SHIELDTO CENTRAL CONTROLLER TO OUTDOOR UNITTO INDOOR UNIT

− 114 −

9

10 Set the central control address.(For the setting of the central control address, refer to the installation manuals of the central control devices.)

Header unit interface P.C. board

SW15

SW04

1 2

SW13

SW30

SW14 SW01 SW02 SW03

D600 D601 D602 D603 D604

SW05

7-segment display

SW30* Header units are connected to the same

central control, except the header unit with the smallest line address number.

8

1 2

SW30 SW30* Header unit with the least number of the

line address.

4, 6

5

− 115 −

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)Outdoor units (setting manually)

*The items in bold font must be set manually.

CAUTION

Relay connector connectionNever connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all the refrigerant lines. Otherwise, the addresses cannot be set correctly.

Outdoor unit’s interface P.C. board Header unit Follower unit Header unit Follower unit Header unit Factory default

SW13, 14(Line (system) address) 1 (No setting

required) 2 (No setting required) 13

DIP switch 2 of SW30 (Terminator of indoor/outdoor communication line and central control line)

ON (No setting required)

Set to OFF after setting addresses.

(No setting required)

Set to OFF after setting addresses.

ON

Relay connectorConnect after

setting addresses.

OpenConnect after

setting addresses.

OpenConnect after

setting addresses.

Open

Line (system) address 1 1 2 2 3

Indoor unit address 1 2 1 2 1

Group address 0 0 1 2 0

A

U1 U2

U3 U4 U3 U4 U3 U4 U3 U4 U3 U4

U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2

U1 U2U1 U2U1 U2U1 U2U1 U2

U5 U6

A BA BA BA BB

Central remote

controller

Relay connector

Relay connector

Relayconnector

Header unit Header unit Header unitFollower unitFollower unit

Remote controller

Remotecontroller

Remote controller

Remotecontroller

Individual Group

Indoor units (automatic setting)

− 116 −

Manual address setup from the remote controllerWith indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or in cases where addresses are change after address setup.

Group address

Individual: 0000Header unit: 0001Follower unit: 0002

(Wiring example for 2 refrigerant lines)Line 1 Line 2

Line 1 Line 2

Outdoor

Indoor 1 Indoor 2Indoor 1

(Remote controller group control)

Indoor 2 Indoor 3

Indoor 1 Indoor 2Indoor 1 Indoor 2 Indoor 3

Line address Indoor address

111

Header

122

Follower Follower Follower Follower

132

212

222

Outdoor

OutdoorOutdoor

(Wiring during manual address setup)

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Groupaddress

In the above example, where remote controllers are not yet wired, set the address manually after individually connecting the wired remote controller.

After address setup, return to the original wiring over remote controllers.

In cases of remote controller group control

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

DN code(CODE No.)

Setdata

5, 8, 11, 146, 9, 12, 15

16

471013

3

1 Arrange one indoor unit and one remote controllerset to 1 by 1.

2 Turn on the power.

3 Push the + + buttons simultaneously for 4 seconds or more.LCD begins blinking.

(Refrigerant line address)

4 Using the buttons, set the DN code to 12.

5 Using the buttons, set up the line address (match it with the line address on the interface PC board of the header unit on the same refrigerant line).

6 Push the button (OK when the display goes on).

(Indoor address)


8 Using the buttons, set up the indoor address. (0001~0064)


(Group address)


11 Using the buttons, set Individual = 0000, Header unit = 0001, Follower unit = 0002.


(Central control address)

13 Using the buttons, set DN code to 03.

14 Using the buttons, set up the central control address. (0001~0064)

15 Push button. (OK when display goes on).

16 Push the button.Setup is finished (“Setting up” blinks; when “Setting up” goes off, operation is possible).

17 Return to the original wiring over remotecontrollers.

− 117 −

NOTE

(1) When setting the line address from the remote controller, do not use addresses 29 and 30.Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code “E04” (indoor/outdoor communication circuit error) is output.

(2) When manual address setup has been done from a remote controller, and central control over refrigerant lines is to be done, setup the header unit of each line as follows:• Using SW13 and SW14 on the interface PC board of the header unit of each line, setup the line address for each

line.• Except for the line with the smallest line address number, set SW03-bit 2 to “off” for the interface PC board of the

header unit of lines connected to the same central control (put the terminator resistor of the central control line, indoors and outdoors, into one).

• Connect the relay connector between U1/U2 and U3/U4 of the header unit for each refrigerant line.• After that, set up the central control address. (For central control address setup, refer to the installation manual of

the central control devices.)

Confirming the indoor unit addresses and the position of an indoor unit using the remote controller

Confirming the numbers and positions of indoor units

To see the indoor unit address of an indoor unit which you know the position of

When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one), or it is a group-controlled one.

(Execute it while the units are running.)

1 Push the button if the units stop.

2 Push the button (left side of the button).A unit numbers is indicated on the LCD (it will disappear after a few seconds). The indicated number shows the system address and indoor unit address of the unit. When 2 or more indoor units are connected to the remote controller (group-controlled units), a number of other connected units appears each time you push the button (left side of the button).

1

2

ON / OFFTEMP.

TIME

SET CLFILTERRESET TEST

TIMER SET

CODE No.

UNIT No.

Starts running

UNIT LOUVER

UNIT LOUVER

− 118 −

To find an indoor unit’s position from its address

When checking unit numbers controlled as a group

(Execute it while the units are stopped.)The indoor unit numbers in a group are indicated one after another. The fan and louvers of the indicated units are activated.

1 Push and hold the and buttons at the same time for more than 4 seconds.• appears on UNIT No. on the LCD display.• The fans and louvers of all the indoor units in the group are activated.

2 Push the button (left side of the button). Each time you push the button, the indoor unit numbers are indicated one after another.• The first-indicated unit number is the address of the header unit.• Only the fan and louvers of the indicated indoor unit are activated.

3 Push the button to finish the procedure.All the indoor units in the group stop.

To check all the indoor unit addresses using an arbitrary wired remote controller.(When communication wirings of 2 or more refrigerant lines are interconnected for central control)

(Execute it while the units are stopped.)You can check indoor unit addresses and positions of the indoor units in a single refrigerant line.When an outdoor unit is selected, the indoor unit numbers of the refrigerant line of the selected unit are indicated one after another and the fan and louvers of the indicated indoor units are activated.

3

1 2

1

ON / OFFTEMP.

TIME


TIMER SET

CODE No.

UNIT No.SETTINGDATASET

R.C. No.

Stop

UNIT LOUVER

56

1

342

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

− 119 −

1 Push and hold the TIME and buttons at the same time for more than 4 seconds.At first, the line 1 and CODE No. (Address Change) are indicated on the LCD display. (Select an outdoor unit.)

2 Push the (left side of the button) and buttons repeatedly to select a system address.

3 Push the button to confirm the system address selection.• The address of an indoor unit connected to the selected refrigerant line is indicated on the LCD display and

its fan and louvers are activated.

4 Push the button (left side of the button). Each time you push the button, the indoor unit numbers of the selected refrigerant line are indicated one after another.• Only the fan and louvers of the indicated indoor unit are activated.

To select another system address

5 Push the button to return to step 2.• After returning to step 2, select another system address and check the indoor unit addresses of the line.

6 Push the button to finish the procedure.

Changing the indoor unit address using a remote controller

To change an indoor unit address using a wired remote controller.

The method to change the address of an individual indoor unit (the indoor unit is paired with a wired remote controller one-to-one), or an indoor unit in a group.(The method is available when the addresses have already been set automatically.)

(Execute it while the units are stopped.)

1 Push and hold the , , and buttons at the same time for more than 4 seconds.(If 2 or more indoor units are controlled in a group, the first indicated UNIT No. is that of the head unit.)

2 Push the button (left side of the button) repeatedly to select an indoor unit number tochange if 2 or more units are controlled in a group. (The fan and louvers of the selected indoor unit are activated.)(The fan of the selected indoor unit is turned on.)

3 Push the TEMP. / buttons repeatedly to select for CODE No..

UNIT LOUVER SWING/FIX

UNIT LOUVER

358

1

4

2, 6, 7

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Finish

UNIT LOUVER

− 120 −

4 Push the TIME / buttons repeatedly to change the value indicated in the SET DATA section to that you want.

5 Push the button.

6 Push the button (left side of the button) repeatedly to select another indoor UNIT No. to change.Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique.

7 Push the button (left side of the button) to check the changed addresses.

8 If the addresses have been changed correctly, push the button to finish the procedure.

To change all the indoor unit addresses using an arbitrary wired remote controller.(The method is available when the addresses have already been set automatically.)

(When communication wirings of 2 or more refrigerant lines are interconnected for central control)

NOTE

You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.

* Enter the address check/change mode and change the addresses.

If no number appears on UNIT No., no outdoor unit exists on the line. Push button and select another line following step 2.

(Execute it while the units are stopped.)

1 Push and hold the TIME and buttons at the same time for more than 4 seconds.At first, the line 1 and CODE No. (Address Change) are indicated on the LCD display.

2 Push (left side of the button) and buttons repeatedly to select a system address.

UNIT LOUVER

UNIT LOUVER

3

12

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Cancels the line selection

UNIT LOUVER SWING/FIX

− 121 −

3 Push the button.• The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD

display and the fan and louvers of the unit are activated.At first, the current indoor unit address is displayed in SET DATA.(No system address is indicated.)

4 Push the TIME / buttons repeatedly to change the value of the indoor unit address in SET DATA.Change the value in SET DATA to that of a new address.

5 Push the button to confirm the new address on SET DATA.

6 Push the button (left side of the button) repeatedly to select another address to change. Each time you push the button, the indoor unit numbers in a refrigerant line are indicated one after another. Only the fan and louvers of the selected indoor unit are activated. Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique.

7 Push the button.(All the segments on the LCD display light up.)

8 Push the button to finish the procedure.

Resetting the address(Resetting to the factory default (address undecided))

Method 1Clearing each address separately using a wired remote controller.Set the system address, indoor unit address and group address to “0099” using a wired remote controller.(For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous pages.)

Method 2Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.

1 Turn off the refrigerant line to reset to the factory default and set the header outdoor unit of theline as below.1) Disconnect the relay connectors between the [U1, U2] and [U3, U4] terminals.

(Leave them as they are if they have already been disconnected.)

48

5, 7 6

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Press to finish setting.

Finish

UNIT LOUVER

− 122 −

2) Turn on DIP switch 2 of SW30 on the interface P.C. board of the header outdoor unit if the switch is OFF.(Leave it as it is if it has already been set to ON.)

2 Turn on the indoor and outdoor units of the refrigerant line for which you want to initialize theaddresses. About one minute after turning on the power, confirm that the 7-segment display on the header outdoor unit indicates “U.1. - - -” and operate the interface P.C. board on the header outdoor unit of the refrigerant line as follows.

3 Confirm that the 7-segment display indicates “A.d. c.L.” and set SW01, SW02 and SW03 to 1, 1, 1respectively.

4 After a time “U.1.L08” appears on the 7-segment display if the address clearing has beencompleted successfully.If the 7-segment display indicates “A.d. n.G.”, the outdoor unit may still connected with other refrigerant lines. Check the connection of the relay connectors between [U1, U2] and [U3, U4].

NOTE

Take care to carry out the procedure above correctly; otherwise, addresses in other refrigerate lines may also be cleared.

5 Set the addresses again after finishing the clearance.

sesserdda elbaraelC40WS30WS20WS10WS

2 1 2Confirm that the 7-segment display indicates “A.d.buS” and turn SW04 ON for more than five seconds.

System/indoor unit/group address

2 2 2Confirm that the 7-segment display indicates “A.d.nEt” and turn SW04 ON for more than five seconds.

Central control address

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2

U1U3

U2U4

U5 U6

U1 U2

A B

Central remote controller

Header unit Follower unitFollower unit

Remote controller

Remotecontroller

Remotecontroller

Remotecontroller

Indoor units to have their addresses initialized

Header unit

Header unit

− 123 −

In the case of an increase in address-undefined indoor units (extension, etc.)

To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of PC board, etc., follow the methods below.

Method 1Set up an address individually from a wired remote controller.(Line address, Indoor address, Group address, Central address)For the setup method, refer to “Manual address setup from the remote controller.” above.

Method 2Set up an address from the outdoor unit.* Leave the addresses of the units for which addresses have already been set up as they are. Set up an address

only for the unit where the address is undefined.Addresses are allocated from lower numbers.

Setup procedureSet up the outdoor header units in the refrigerant line to which indoor units have been added, as follows.

1 Disconnect the relay connector between U1/U2 and U3/U4.

2 If it is off, turn on SW30-bit 2 on the interface PC board at outdoor header unit side.*Turn off the power, and then execute the operation.

3 Turn on the indoor/outdoor power for the refrigerant line for which an address is to be set up.After approximately 1 minute, check that “U.1. - - -” is displayed on the 7-segment display.

4 Execute the following operation on the interface PC board of the header unit.

“AUTO1” “AUTO2” “AUTO3” ... “AUTO9” ... is counted and displayed on the 7-segment display.

5 When “U.1. - - -” is displayed on the 7-segment display, the setup operation finished.Turn off the indoor/outdoor power.

6 Return to the following setup as before.• Relay connector• SW30-bit 2• SW01, SW02, SW03

40WS30WS20WS10WS

2 14 2 After checking that “In.At” is displayed on the 7-segment display, push SW04 for 5 seconds or more.

Header unit Follower unit tinu redaeHtinu redaeH Follower unit

Centralcontrol device

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Added indoor unit

− 124 −

7-4-4. Check after Address Setup when Central Control System Is Connected

When the central control system is connected, check that the following setup has finished after address setup.

NOTE



Relayconnector

(1) Is the relay connector of the header unit connected after address setup?

(2)Is the relay connector of the follower unit disconnect?

Terminator resistor

(3)Is the terminator resistor (SW30-bit 2) of the header unit with the smallest line address number in the central control turned on? (Setup is unnecessary for follower units.)

(4)Is the terminator resistor (SW30-bit 2) of the header units, except for the line with the smallest central control line address, turned off? (Setup is unnecessary for follower units.)

Line address (5)Are addresses in the line address (SW13, SW14) not duplicated in each refrigerant line?

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

)A( tinu redaeH)A( tinu redaeH

U1 U2 U5 U6

U3 U4

U1 U2 U5 U6

A B A B A B A B

(5)(4)

(5)

)2()1( (3)

Other refrigerant line

U1 U2

U3 U4

U3 U4

U1 U2 U5 U6

To other refrigerant line

U3 U4

Line address = 1Line address = 2

Central remote controller

Follower unit (B) Follower unit (C)

Outdoor unit

Indoor unit

Remotecontroller

Remotecontroller

Remotecontroller

− 125 −

If there are phenomena such as the output of a check code or the remote controller is not accepted when powered-on after wiring work or during address setup operation, the following causes are considered.

* “L05”: Displayed on the indoor unit set up with priority“L06”: Displayed on the indoor units except the one set up with priority

Check the code displayed on the indoor remote

controller

Headerunit 7-

segment display

serusaemretnuoCesuaC

E04

no si rewop tinu roodtuo redaeh eht taht kcehCffo si rewop roodtuo nehW–

L08

Address setup error• Only line addresses of the connected indoor units

are undefined.• The outdoor line address and the line addresses

of all the indoor units do not match.• The indoor addresses are duplicated. (Units

except those displaying E04 are duplicated.)• A header unit is not set up in group control (except

groups displaying E04).

Set up the address again.

E08 -XXAlternate blinking

Duplication of indoor addresses (address number in the subcode of the check code are duplicated).

Set up the address again.

E07

There is no outdoor terminator resistor or there are two or more terminator resistor.(After address setup, when terminator resistor setup is changed after powering-on)

Check SW30 bit 2 of the header unit.No connection between multiple refrigerant lines: SW30 bit 2 is on.Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.

Transmission circuit error at the interface side (PC board failure)

Replace the interface PC board.

E06

After address setup, communication from all the indoor units is interrupted under the condition that a normal operation can be performed.

Check and correct disconnection of the indoor/outdoor communication line (the communication line between the header unit and the leading indoor unit).Check for the influence of communication noise.

E16E16 -XXAlternate blinking

Exceeded the number or capacity of connected indoor units

Adjust the number or capacity of connected indoor units.

E23 E23 Communication between outdoor units has stopped. Check the number of connected outdoor units.Check that outdoor unit power is on.

E25 E25 Duplication of outdoor addresses (only when an outdoor address was manually set up)

Do not use manual setup for outdoor addresses.

E26E26 -XXAlternate blinking

Number of connected outdoor units has decreased.• When installing an outdoor backup• The power of a follower unit is not turned on.

Correction of the cause of error occurrence• If it occurs when installing a backup, clear the error

after setup finishes.• If the power of a follower unit is not turned on, turn

on the power.

L04 L04

Duplication of outdoor line addresses• Line address setup error (occurred after

connection between U1/U2 and U3/U4 connectors)

Modify the line address setup of the header unit between lines. (Set up SW13 and SW14 on the interface PC board.)

L05(*) L06 Duplication of indoor units with priority Set up priority only for one indoor unit.

L06(*) There are two or more indoor units set up with priority.

Among indoor units indicating “L05,” set one unit with priority.

L08 L08Address setup error• Only indoor addresses of all the connected indoor

units are undefined.

Set up the addresses again.Modify the setup.

ON1 2

SW30

7-5. Troubleshooting in Test Operation

7-5-1. A Check Code is Displayed on the Remote Controller

− 126 −

Indoor remote controller

status

Header unit 7-segment

displayserusaemretnuoCesuaC

No response

L08Line addresses and indoor addresses of all the connected indoor units are not set.

Set up addresses.

There is no header unit of group control. Set up a group address.

E19 -00Alternate blinking

:redro eht nI( .niaga rewop eht no nruT.no denrut ton si rewop tinu roodnIindoor outdoor)

Indoor/outdoor communication line is not correctly connected to the U1/U2 terminal of the header unit ( Fig. 1). (Indoor/outdoor cannot communicate before address setup.)

Correct wiring

There is no of outdoor terminator resistor, or there are two or more resistances (before address setup).

Check SW30 bit 2 of the header unit.No connection between multiple refrigerant lines: SW30 bit 2 is on.Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.


When connecting an indoor/outdoor communication line between outdoor units under the condition of a connected communication line between outdoor units ( Fig. 2).

Correct wiring

”.ffo“ ot sehctiws 80WS lla nruTrorre putes 80WS


Address setup is performed with connecting an indoor/outdoor communication line between outdoor units ( Fig. 3).

Correct wiring

Address setup is performed under the condition of connecting multiple refrigerant lines ( Fig. 3).

Correct wiring

Indoor remote controller

status


displayserusaemretnuoCesuaC

No response None

The communication line is not connected between indoor and outdoor (the unit that does not respond to the indoor remote controller).

Improve the wiring.

Line address and indoor address are not set (the unit that does not respond to the indoor remote controller).

Set up the address.

The power of the header unit of the group is not turned on in indoor group control (the unit that does not respond to the indoor remote controller).

Turn on the power.

Group address is set to the follower unit for individual control (the unit that does not respond to the indoor remote controller).

Set the group address to “0” in the case of individual control.

No display on the indoor remote

controller (no line is output.)

None

The power is not turned on (the unit that is not displayed on the indoor remote controller).

Turn on the power.

The indoor remote controller is not connected with a wire (the unit that is not displayed on the indoor remote controller).

Improve the wiring.

Miswiring of the indoor remote controller (the unit that is not displayed on the indoor remote controller)

Improve the wiring.

Indoor remote controller communication circuit error (the unit that is not displayed on the indoor remote controller)If 220-240 V is incorrectly applied to the indoor remote controller terminal, the remote controller communication circuit fails.

Remove the quick connect terminal connected to indoor remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to 18 V), replace the PC board.

ON1 2

SW30

7-5-2. Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7-segment display of the interface PC board of the header unit.

7-5-3. There is no display of a check code on the 7-segment display on the interface PC board of the header unit, although there is indoor unit that is not accepting operation from the indoor remote controller.

− 127 −

7-5-4. In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed. (There are outdoor/indoor units that do not operate in a test operation.)

serusaemretnuoCesuaCsutatS

The number of connected

outdoor units is too few.

Miswiring of communication lines between outdoor units or an unconnected wire ( Fig. 4). (Address setup operation finished without recognizing a miswired follower unit.)

After improvement of wiring, set up the addresses again and check the number of connected outdoor units.

The number of connected indoor units is too few.

Miswiring of communication lines between indoor units or an unconnected wire ( Fig. 5). (Address setup operation finished without recognizing a miswired indoor unit.)

After modification of wiring, set up the addresses again and check the number of connected indoor units.

The number of indoor units

connected to a group is too few in group operation from an indoor

remote controller.

The indoor remote controller is not connected with wire.Miswiring of the indoor remote controller

Using the main indoor remote controller connected to a group, start a test operation, specify the unit that is not operating (the unit not connected to the group), and then check the wiring.

Indoor remote controller communication circuit errorIf 220-240 V is incorrectly applied to the remote controller terminal, the remote controller communication circuit fails.

Using the main indoor remote controller connected to a group, start a test operation and then specify the unit that is not operating (the unit not connected to the group). Remove the quick connect terminal connected to remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to18 V), replace the PC board.

− 128 −

Miswiring example

FigureRemote

controller status


displayMiswiring example

Fig. 1No

responseE19-00

Fig. 2No

responseE19-02

Fig. 3No

responseE20-01

elpmaxe gniriwsiMsutatSerugiF

Fig. 4

The number of connected outdoor units is too few.

Fig. 5

The number of connected indoor units is too few.

U3 U4 U5 U6

U1 U2 U1 U2 U1 U2 U1 U2

Header unit Header unit

U1 U2

Header unit

U1 U2 U1 U2

U5 U6 U1 U2 U5 U6

Follower unit

U1 U2

U1 U2 U1 U2

U1 U2 U1 U2

U1 U2 U1 U2

U5 U6 U1 U2

U1U2 U1 U2

[Line 1]

U1 U2

Header unit Follower unit Header unit Follower unit Header unit Follower unit[Line 2]

U1 U2

U1 U2 U1 U2

U3 U4U1 U2

U1 U2 U1 U2

U3 U4 U1 U2

U1 U2 U1 U2

U5 U6

U5 U6

U3 U4

U1 U2or

orU3 U4

U1 U2

Header unit Follower unit Header unit Follower unit Header unit Follower unit

or

Wiring forgotten

U1 U2

U1 U2 A B

U1 U2

U1 U2 U1 U2

tinu rewolloFtinu redaeH

− 129 −

7-6. Test Operation Check7-6-1. Fan Check

START

NO

NO

YES

YES

Push the Start/Stop button on the remote controller.

Select the " Fan" operating mode.

Normal

Check every indoor unit in turn.

Is air discharged from the discharge port of the indoor unit?

Is the sound normal?

When a check code has been displayed on the remote controller, remove the cause of the error, referring to "Check code and check position displayed on remote controller and outdoor unit."

Check the indoor fan, fan motor, and fan circuit.

Check positions around the fan.

Check code appears

Check code appears

− 130 −

7-6-2. Cooling/heating Test Operation CheckThe cooling/heating test operation check can be performed on both the indoor remote controller and the outdoor header unit interface PC board.(1) Test operation start/stop operationTest operation from the indoor remote controller• Wired remote controller: Refer to the items below in “Test operation” of the wired remote controller.• Wireless remote controller: Refer to the items below in “Test operation” of the wireless remote controller.• Lite-Vision plus remote controller : Refer to the installation manual of RBC-AMS51E

Wired remote controller Wireless remote controller (Except the 4-way Cassette type and the Ceiling type)

Test run (Forced cooling operation)Requirement:

• Finish the forced cooling operation in a shorttime because it applies excessive strength to theair conditioner.

How to perform forced cooling operation1. When TEMPORARY button is pushed for 10

seconds or more, “Pi!” sound is heard and theoperation changes to a forced cooling operation.After approx. 3 minutes, a cooling operation startsforcedly.Check cool air starts blowing. If the operation doesnot start, check wiring again.

2. To stop a test operation, push TEMPORARYbutton once again (Approx. 1 second).• Check wiring / piping of the indoor and outdoor

units after forced cooling operation.

1, 5

3

2, 4

Operation contentProcedure

1

2

When the Test button is pushed for 4 seconds ormore, “TEST” is displayed in the display section,and the unit enters test operating mode.

5

Push the Test button to clear the test operating mode.(“TEST” disappears from the display section, andthe status returns to the normal stopped status.)

3

Using the Select Mode button, select the“ COOL” or “ HEAT” operating mode.• Do not use an operating mode other than “ COOL” or “ HEAT”.• Temperature adjustment is unavailable during test operation.• Error is detected as usual.

Push the button.

4When the test operation has finished, push the

button to stop the operation.(The same display as in procedure 1 appears inthe display section.)

TEMPORARY-Button

− 131 −

Wireless remote controller(4-way Cassette type)






units in forced cooling operation.

Wireless remote controller(Ceiling type)






units in forced cooling operation.

Test operation from the outdoor unit• Refer to “7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit” in “7-7. Service Support

Function.”Note: The test operation returns to normal operating mode after 60 minutes.

TEMPORARYbutton

TEMPORARY button

− 132 −

(2) Test operation

Note 1

Note 2

Note 3

START

NormalNotes 1-3 are on the next page.

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Test operation for one indoor unit

Operation starts

Is cold air or hot air discharged?

Is air circulation sufficient?

Operate all the indoor units at once.

Is there adequate temperature difference between suction and discharge?

Is the operating voltage correct? (220-240 V ±10%)

Is the operating current normal?

Is the operating pressure normal?

Refer to "Test operation procedure" of the indoor remote controller.

Check the operating status of the compressor.

Execute a test operation using "Start/Stop Function of the Indoor Unit from Outdoor Unit" in the "Service Support Function" section.

• Check power voltage ofthe main power supply.

• Check the cable size ofthe power supply.

• Check the temperature load of theindoor/outdoor units.

• Check the pipe length and refrigerantamount.

• Check the operating Hz of thecompressor.

• Check the operation of the outdoorfans.

• Check for abnormal sound in theoutdoor unit.(Abnormal sound, etc. of thecompressor and other components)

Check the direction of the louver.

The operation does not start for approximately 3 minutes after powering-on or stopping operation.

Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.

Test

ope

ratio

n fo

r ev

ery

indo

or u

nit i

n tu

rn

− 133 −

7-7. Service Support Function7-7-1. Check Function for Connecting of Refrigerant and Control LinesThis function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the header unit.However, be sure to check the following items prior to executing this check function.

1 This check function does not work when a group operation by remote controller is performed andit is used over outdoor units.

2 When using this check system, be sure to check for each 1 line in the unit of outdoor unit. Ifchecking the multiple lines at the same time, misjudgment may be caused.

(Check procedure)

Power ON

Outdoor temperature [°C]

-10

18

32

10 43

(7-segment display)

[A]

[ .]

System horsepower

[B]

[ HP]

(7-segment display)

[A]

[ .]

[B]

[ P]

(7-segment display)

[A]

[ .]

[B]

[C ]

(7-segment display)

[A]

[ .]

[B]

[H ]

(7-segment display)

[A]

[ J .C ]

[ J .H ]

Cooling

Heating

[B]

[ ]

[ ]

A

Be sure to turn on the power at indoor side before power-ON of outdoor unit.

System capacity checkSet the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/2/3]. Then the system capacity is displayed on 7-segment display [A]. Check that this display surely matches with the expected system capacity.

Check No. of outdoor unitsSet the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/3/3]. Then No. of outdoor units connected to the system is displayed on 7-segment display [A]. Check that this display surely matches with the expected No. of outdoor units.

Check No. of indoor units/No. of units with cooling thermostat ONSet the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/4/3]. Then No. of indoor units connected to the system is displayed on 7-segment display [A]. Check that this display surely matches with the expected No. of indoor units.

Check No. of indoor units/No. of units with heating thermostat ONSet the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/5/3]. Then No. of indoor units connected to the system is displayed on 7-segment display [A]. Check that this display surely matches with the expected No. of indoor units.

Check incorrect wiringAccording to the indoor temperature, select one of the following items for setup of the rotary switches on the interface P.C. board of the header unit.Cooling: SW01/SW02/SW03 to [2/1/1]Heating: SW01/SW02/SW03 to [2/2/1]

No. of connected

outdoor units

No. of connected

outdoorunits

No. of units with cooling

thermostat ON

No. of connected

outdoorunits

No. of units with heating

thermostat ON

Indo

or te

mpe

ratu

re [°

C]

SW02 to [2]

(Heating)

SW02 to [1]

(Cooling)

− 134 −

Note 1: Criteria for the difference between suction and discharge temperatures(1) Cooling operation

After operating for a minimum of 30 minutes in “COOL” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 8°C or more, it is normal.

(2) Heating operationAfter operating for a minimum of 30 minutes in “HEAT” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 15°C or more, it is normal.* If demand from the indoor unit on the outdoor unit is low because the difference between the temperature set

by the remote controller and the temperature of the room is small, then the T temperature difference is small.* Consider that T temperature difference may diminish in cases of a system in which the connected indoor unit

capacity exceeds the outdoor unit capacity, the pipe length is long, or a large difference exists among outdoor units.

Note 2: Criteria for operating power currentThe table below shows the maximum current for each outdoor unit. Under standard conditions, operating current is about 80% of the value shown in the table below.

Note 3: Criteria for cycle status(1) These data are based on operating a 4-way Air Discharge Cassette type air conditioner of 100% connection

with standard piping length.Data may vary depending on temperature conditions, installed pipe length, and room shape combinations, or indoor unit connection capacity.For pressure criteria in different temperature conditions, refer to (2).

* This compressor is driven with a 4-pole motor. The value of the compressor frequency (rps) measured with a clamp meter at the compressorlead line is two times the rotation count (rps) of the compressor.

* Each compressor may have a different frequency as a measure against resonance.* The temperature of the indoor heat exchanger (TC) indicates TCJ sensor temperature when cooling, and TC2 sensor temperature when

heating, respectively.

(2) Criteria for operating pressure

* Criteria after 15 minutes or more has passed since operating started

(3) On rotations of outdoor fansOutdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heating with excessive load. For control content, also refer to items in Section 5, “Control Outline: Outdoor Unit, Outdoor Fan Control.”

gnitaeHgnilooCedom gnitarepO

Indoor temperature (°C) 18~32 15~25

Outdoor temperature (°C) 25~35 5~10

PressureHigh pressure (MPa) 2.0~3.7 2.5~3.3

Low pressure (MPa) 0.5~0.9 0.5~0.7

− 135 −

Outdoor unit MMY-MAP 0806* 1006* 1206* 14B6* 1406* 1606* 18B6* 1806* 2006* 2206*Current value (A) 20.5 21.5 26.1 29.4 31.0 35.8 39.9 40.6 44.9 49.3

Pressure(MPa)

Pd Ps Discharge(TD)

Suction(TS)

Indoor heatexchanger

(TC)

Outdoor heat

exchanger(TE)

Liquidtemperature

(TL3)

Compressor1

Compressor2 Indoor Outdoor

Cooling 2.9 0.9 80 16 10 40 30 50 50 High 27/19 35/-Heating 2.6 0.7 75 5 35 3 30 50 50 High 20/- 7/6Cooling 3.1 0.9 85 16 11 40 30 60 60 High 27/19 35/-Heating 2.6 0.7 80 4 35 2 30 65 65 High 20/- 7/6Cooling 3.2 0.9 90 16 11 40 30 70 70 High 27/19 35/-Heating 2.6 0.7 85 3 35 2 25 75 75 High 20/- 7/6

14B6* Cooling 3.2 0.9 95 16 11 40 30 85 85 High 27/19 35/-Cooling 3.2 0.9 90 16 10 40 35 60 60 High 27/19 35/-Heating 2.6 0.7 80 4 35 3 30 65 65 High 20/- 7/6Cooling 3.2 0.9 90 16 10 40 35 70 70 High 27/19 35/-Heating 2.8 0.7 85 3 30 2 25 70 70 High 20/- 7/6

18B6* Cooling 3.1 0.9 90 16 10 40 35 80 80 High 27/19 35/-Cooling 3.1 0.9 80 15 11 40 35 70 70 High 27/19 35/-Heating 2.8 0.7 70 4 30 3 25 75 75 High 20/- 7/6Cooling 3.1 0.9 85 15 11 40 35 80 80 High 27/19 35/-Heating 2.8 0.6 75 3 30 2 25 85 85 High 20/- 7/6Cooling 3.2 0.9 95 14 11 40 35 100 100 High 27/19 35/-Heating 2.7 0.6 75 3 30 2 20 85 85 High 20/- 7/6

Outdoorunit

MMY-MAP

Operatingmode

Pipe surface temperature()

Number of compessor rotations

(rps) Indoorfan

Air temperaturecondition

(DB/WB) ()

2006*

2206*

0806*

1006*

1206*

1406*

1606*

1806*

Operation

(7-segment display)

[A]

[ C ]

[ H ]

Cooling

Heating

[B]

[ CC ]

[ HH ]

(7-segment display)

[A]

[ ]

C or H

[B]

[ # # P]

(7-segment display)

[A]

[ ]

C or H

[B]

[ # # ]

(7-segment display)

[A]

[U1]

[B]

[ ]

A

Operation startPress the push-switch SW04 on the interface P.C. board of the header unit for 2 seconds or more. The operation starts.Check that 7-segment display [B] shows [ CC] for cooling and [ HH] for heating.

Confirmation of check results (1)Check that No. of misconnected indoor units is displayed on 7-segment display [B] after 15 minutes.(If there is no misconnection, [00P] is displayed.)

Confirmation of check results (2)Press the push-switch SW05 on the interface P.C. board of the header unit for 2 seconds or more. The indoor address in which error is being detected is displayed on 7-segment display [B]. If there are multiple indoor address in which error is being detected, they are successively exchanged and displayed.(When SW05 is turned on again, the display returns to display of No. of units.)

After check, return the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

No. of misconnected indoor units

This check operation requires 15 minutes even if there is no misconnection or there is any misconnection.

Address display of misconnected

indoor unit

7-segment display [A] 7-segment display [B]

SW04 SW05

<Rotary switches>SW02 SW03SW01

− 136 −

7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor UnitThe following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the header unit.

NOTE 1) This start/stop function only sends the signals from the outdoor unit to the indoor unit, such as start, stop, operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals.

NOTE 2) The above controls are not used during abnormal stop.

uteSeniltuOnoitcnuFoN p/Release 7-segment display

1

Cooling test operation

Changes the mode of all the connected indoor units collectively to cooling test operation.Note)

Control operation same as usual test operation from remote control is performed.

[Setup]Set SW01/SW02/SW03 to [2/5/1], and press SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[C. ]

Section B[ – C]

2

Heating test operation

Changes the mode of all the connected indoor units collectively to heating test operation.Note)

Control operation same as usual test operation from remote control is performed.

[Setup]Set SW01/SW02/SW03 to [2/6/1], and press SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[H. ]

Section B[ – H]

4

Batch start Starts all the connected indoor units collectively.Note)

The contents follow to the setup of remote controller.

[Setup]Set SW01/SW02/SW03 to [2/7/1], and press SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1].

Section A[C.H]

Section B[ 11]

[ 00] is displayed on Section B for 5 seconds.

Batch stop Stops all the connected indoor units collectively.

[Setup]Set SW01/SW02/SW03 to [2/7/1], and press SW05 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1].

Section A[C.H]

Section B[ 00]

[ 00] is displayed on Section B for 5 seconds.

5

Individual start

Starts the specified indoor unit.Notes)

• The contents follow to thesetup of remote controller.

• The other indoor units keepthe status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03 to address No. (1 to 64) to be started, and press SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

Section A: Displays the corresponding indoor address.Section B: Displays [ 11] for 5 seconds from operation-ON.

Individual stop

Stops the specified indoor unit.Note)

The other indoor units keep the status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03 to address No. (1 to 64) to be stopped, and press SW05 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

Section A: Displays the corresponding indoor address.Section B: Displays [ 00] for 5 seconds from operation-OFF.

Individual testoperation

Operates the specified indoor unit.Note)

The other indoor units keep the status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03 to address No. to be operated, and press SW04 for 10 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

Section A: Displays the corresponding indoor address.Section B: Displays [ FF] for 5 seconds from test operation-ON.

SW02 SW03SW01

SW04 SW05


<Rotary switches>

3 Fan testoperation

Changes operation mode of all theconnected indoor units collectivelyto test operation mode.Note) Control operation same as usual test operation from remote control is performed.

[Setup]Set SW01/SW02/SW03 to [2/9/1], andpush SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[F. ]

Section B[ – F]

− 137 −

(1) Cooling test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface board of the header unit.<Operation procedure>

NOTE) The test operation returns to the normal operation after 60 minutes.

Power ON

Start

Operation check

[A]

[C. ]

[B]

[ – C]

Stop/End

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/5/1]. ([C. ] is displayed on 7-segment display [A].)

[Test run] is displayed on the remote controller of the indoor unit to be operated.Check that [ – C] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Press SW04 on the same board for 2 seconds or more.

Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or press the push-switch SW05 for 2 seconds or more.


SW04 SW05


− 138 −

(2) Heating test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface board of the header unit.<Operation procedure>0

NOTE) The test operation returns to the normal operation after 60 minutes.

[A]

[H. ]

[B]

[ – H]

Power ON

Start

Operation check

Stop/End


[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that [ – H] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/6/1].([H ] is displayed on 7-segment display [A].)


Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or press the push-switch SW05 for 2 seconds or more.


SW04 SW05


− 139 −

(3) Fan test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the header unit.<Operation procedure>

NOTE) The test operation ends after 60 minutes and the operation returns to normal status.

[A]

[F. ]

[B]

[ – F]

Power ON

Operation

Operation check

Stop/End

Push the push switch SW4 for 2 seconds or more on the P.C. board.

[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that7-segment display [B] on the interface P.C. board of the header unit changed to [– C]

Match [SW01/SW02/SW03] on the interface P.C.board of the header unit to [2/5/1]. (7-segment display [A] changes to [F. ].)

Be sure to turn on power of the indoor unitand then turn on power supplies at outdoor unit side.

Return [SW01/SW02/Sw03] on the interface P.C. board of the header unit to [1/1/1].or push the push switch [SW05] for 2 seconds or more.


SW04 SW05

<Rotary switches>SW01 SW02 SW03

− 140 −

(4) Batch start/stop (ON/OFF) functionThis function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface board of the header unit.<Operation procedure>0

Power ON

Start

Stop

End

Operation check


If a check code is already displayed with SW01/SW02/SW03 being [1/1/1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated.In this case, " operation ready" or " operation mode controlled" is displayed on the remote controller.

If the discharge temperature does not change though COOL or HEAT has been set up from the remote controller, misconnection is considered.


The indoor unit to be started operates.

Press the push-switch SW05 on the interface P.C. board of the header unit for 2 seconds or more.

After test operation, return the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

Set up the operation mode of the remote controller.(If it is not set up, the operation continues with the current mode.)(FAN/COOL/HEAT)

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/7/1].([C.H ] is displayed on 7-segment display [A].)


SW04 SW05


− 141 −

(5) Individual start/stop (ON/OFF) individual test operation functionThis function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface board of the header unit.Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 64) to be started (Refer to the following table*) - only the setup indoor unit starts operation.

(In the rotary switches of the indoor unit which operates in a group by the remote controller, the follower unit cannot be individually started or stopped. In this case, [ - - ] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.)<Operation procedure>0

NOTE) The individual test operation returns to the normal operation after 60 minutes.

* SW01 SW02 SW03 Units to be operated

16 1

16 2

16 3

16 4

Address 1 to Address 16 individually




In individual start/stop

1~16

1~16

1~16

1~16

Power ON

Start

End

(7-segment display)

[A][ ]

[B][ ]

(7-segment display)

[A][ ]

[B][ ]

(7-segment display)[A]

[ ][B]

[ ]


Set up the operation mode of the remote controller.(If it is not set up, the operation continues with the current mode.)

Press the push-switch SW04 on the same board for 2 seconds or more.(If pressed continuously for 10 seconds or more, the operation changes to the individual test operation.)

Match the rotary switches on the interface P.C. board of the header unit to the following table*.

If a check code is already displayed with SW01/SW02/SW03 being [1/1/1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated.In this case, " operation ready" or " operation mode controlled" is displayed on the remote controller.

Address display of corresponding

indoor unit


indoor unit

[ 11] is displayed for 5 seconds after operation-ON.(For individual test operation, [ FF] is displayed.)

[ 00] is displayed for 5 seconds after

operation-ON.


indoor unit

[ 00] is displayed for 5 seconds after

operation-ON.

Operation check

If the discharge temperature does not change though COOL or HEAT has been set up from the remote controller, misconnection is considered.

The indoor unit to be started operates.


After test operation, return the display select switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

SW04 SW05

SW02 SW03SW01


<Rotary switches>

− 142 −

7-7-3. Check code Clearing Function(1)Clearing from the main remote controller

Check code clearing in outdoor unitCheck code of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller is connected. (Check code of the indoor unit is not cleared.)For clearing check codes, the service monitor function of the remote controller is used.<Method>

1 Change the mode to service monitor mode by pushing + buttons simultaneously for 4 seconds or more.

2 Using buttons, set CODE No. to “FF”.

3 The display in Section A in the following figure is counted with interval of 5 seconds as“0005” --> “0004” --> “0003” --> “0002” --> “0001” --> “0000”. When the count arrives “0000”, the check code is cleared. *However, counting from “0005” is repeated on the display.

4 When button is pushed, the status returns to the normal status.

Check code clearing in indoor unitCheck code in the indoor unit is cleared by button on the remote controller.(Only check code of the indoor unit connected with operating remote controller is cleared.)

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

14

2

3 Section A

− 143 −

(2)Clearing check code by using switches on the interface board of the header unitUsing the switches on the interface P.C. board of the header unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply.Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.

(3)Clearing check code by resetting powerThis function is provided to clear check code in a system by resetting the power of all the outdoor and the indoor units. As same as the clearing method by the interface P.C. board, check codes of both the outdoor and the indoor units are once cleared, and check code detection is performed again.<Method>(1) Be sure to reset power of both the outdoor and the indoor units.(2) Turn on the power of the indoor unit prior to the power of the outdoor unit.

(If the power is turned on in reverse order, a check code [E19] (No. of header unit error) is output.)

NOTE) After power reset, it requires usually 3 minutes to power-on due to the initial communication of the system. In some cases, it requires max. 10 minutes.

7-segment display

[A] [B]

[ E r ] [ ]

7-segment display

[A] [B]

[ E r ] [ C L ]

Set the rotary switches on the interface P.C. board of the header unit as follows.Set SW01/SW02/SW03 to [2/16/1]

Press the push-switch SW04 on the same board for 5 seconds or more.

[ C L] is displayed in 7-segment display [B] on the board (for 5 seconds), and Check code is completely cleared.

Interface P.C. board

SW04 SW05

SW02 SW03SW01


<Rotary switches>

− 144

7-7-4. Remote Controller Distinction FunctionThis function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the header unit.<Distinction procedure>

Power ON

End

Check the connected remote controller

Operation

7-segment display

[A] [B]

[ A 1 ] [ ]

7-segment display

[A] [B]

[ A 1 ] [ FF]

Be sure to turn on the power of the indoor unit prior to the power of the outdoor unit.

Set the display select switches on the interface P.C. board of the header unit as follows:Set SW01/SW02/SW03 to [2/4/1]

Press the push-switch SW04 on the same board for 2 seconds or more.

"Checking" display of the connected remote controller flashes.


Other end conditions:1. 10 minutes has passed2. SW01, SW02, or SW03 changed to other position.


SW04 SW05

SW02 SW03SW01


<Rotary switches>

− 145 −

This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the header unit.This function is also used to open PMV fully when turning off the power and executing an operation.

<Operation>

[Open fully]Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and press SW04 for 2 seconds or more.(Display appears on 7-segment display for 2 minutes as follows.) [P ] [ FF]

[Close fully]Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and press SW05 for 2 seconds or more.(Display appears on 7-segment display for one minute as follows.) [P ] [ 00]

[Clear]After 2 minutes (1 minutes for “Close fully”) after setting up, the opening automatically returns to the normal opening.

This function is provided to forcedly open or close fully P.M.V. (PMV1/PMV3, PMV4) used in the outdoor unit for 2 minutes.

[PMV1 Open fully]On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and short-circuit CN30.

[PMV1 Close fully]On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and short-circuit CN31.

[PMV3 Open fully]On the interface P.C. board of the outdoor unit, set the DIP switch [SW12·bit1] to [ON], [SW12·bit2] to [OFF], and shortcircuit CN30.

[PMV3 Close fully]On the interface P.C. board of the outdoor unit, set the DIP switch [SW12·bit1] to [ON], [SW12·bit2] to [OFF], and shortcircuit CN31.

[Clear]For both open fully and close fully, after 2 minutes, the opening returns to the normal opening.Be sure to remove the cord used for short-circuit after confirmation, and set the DIP switch [SW12·bit1] to [OFF] and [SW12·bit2] to [OFF].

7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit

7-7-6. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit

[PMV4 Open fully]On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and short-circuit CN30.

[PMV4 Close fully]On the interface board of the outdoor unit, set the DIP switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and short-circuit CN31.

− 146 −

7-7-7. Solenoid Valve Forced Open/Close Function in Outdoor UnitThis function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch operation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerant clogging with ON/OFF operation of the solenoid valve.

[Operation](1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/3].(2) When [H. r] is displayed in 7-segment display [A], keep pressing the switch SW04 for 2 seconds or more.(3) From when [ 2 ] is displayed in 7-segment display [B], SV2 is turned on.(4) After then, ON and OFF of each solenoid valve are exchanged by changing the setup number of the switch

SW02.(ON/OFF output pattern of each solenoid valve is as shown below.)

NOTE 1) Display in 7-segment display [B] is exchanged just when the number of SW02 has been changed; on the other hand, the solenoid valve output is exchanged when SW02 has been kept with the same number for 5 seconds or more.

NOTE 2) The mark [O] in the table indicates that the corresponding solenoid valve is forcedly turned on.NOTE 3) The mark [-] in the table indicates that ON/OFF of the solenoid valve is controlled based upon the

specifications of the air conditioner.NOTE 4) The mark [×] in the table indicates that the corresponding solenoid valve is forcedly turned off with this

operation.NOTE 5) The case heater output is for both the compressor and accumulator heaters.

[Clear]Return switches SW01/SW02/SW03 on the interface P.C. board to [1/1/1].

NOTE) As this function is not based on the specified general control, be sure to release this mode after checking.

SV2 SV51 SV52 SV41 SV42 SV3A SV3B SV3C SV3D1 [ 2 ] - - - - - - - - 2 [ 51] - - - - - - - - 3 [ 52] - - - - - - - - 4 [ 41] - - - - - - - - 5 [ 42] - - - - - - - - 7 [ 3A] - - - - - - - - 8 [ 3b] - - - - - - - - 9 [ 3C] - - - - - - - - 10 [ 3d] - - - - - - - - 11 [ 3-] - - - - -

12～15 - - - - - - - - - 16 [ALL]

SW02 7-segmentdisplay [B]

Case heateroutput relay

Operation pattern of solenoid valve

− 147 −

7-7-8. Fan Operation Check in Outdoor UnitThis function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system. And, use this function while the system is stopped.NOTE) Do not use this function during operation of the compressor. It may damage the compressor.

[Operation](1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/4].(2) When [F. d] is displayed in 7-segment display [A], keep pressing the switch SW04 for 2 seconds or more.(3) When [ 63 ] is displayed in 7-segment display [B], the fan starts operation. (Max. mode operation)(4) After that, by changing the setup number of the switches SW02 and SW03, 7-segment display [B] and the fan

mode are changed.(Mode output pattern of the fan is as follows.)

[Clear]This function is cleared by one of the following operations.(1) When SW01 setting number was changed to other number.(2) Press-switch SW05 was pressed for 2 seconds or more.

SW02 SW03 7-segment display [B] Fan mode

1

4

[ 63 ] 63

2 [ 62 ] 62

3 [ 61 ] 61

4 [ 60 ] 60

5 [ 59 ] 59

6 [ 58 ] 58

7 [ 57 ] 57

8 [ 56 ] 56

9 [ 55 ] 55

10 [ 54 ] 54

11 [ 53 ] 53

12 [ 52 ] 52

13 [ 51 ] 51

14 [ 50 ] 50

15 [ 49 ] 49

16 [ 48 ] 48

1

5

[ 47 ] 47

2 [ 46 ] 46

3 [ 45 ] 45

4 [ 44 ] 44

5 [ 43 ] 43

6 [ 42 ] 42

7 [ 41 ] 41

8 [ 40 ] 40

9 [ 39 ] 39

10 [ 38 ] 38

11 [ 37 ] 37

12 [ 36 ] 36

13 [ 35 ] 35

14 [ 34 ] 34

15 [ 33 ] 33

16 [ 32 ] 32

SW02 SW03 7-segment display [B] Fan mode

1

6

[ 31 ] 31

2 [ 30 ] 30

3 [ 29 ] 29

4 [ 28 ] 28

5 [ 27 ] 27

6 [ 26 ] 26

7 [ 25 ] 25

8 [ 24 ] 24

9 [ 23 ] 23

10 [ 22 ] 22

11 [ 21 ] 21

12 [ 20 ] 20

13 [ 19 ] 19

14 [ 18 ] 18

15 [ 17 ] 17

16 [ 16 ] 16

1

7

[ 15 ] 15

2 [ 14 ] 14

3 [ 13 ] 13

4 [ 12 ] 12

5 [ 11 ] 11

6 [ 10 ] 10

7 [ 9 ] 9

8 [ 8 ] 8

9 [ 7 ] 7

10 [ 6 ] 6

11 [ 5 ] 5

12 [ 4 ] 4

13 [ 3 ] 3

14 [ 2 ] 2

15 [ 1 ] 1

16 [ 0 ] 0

Two fans move synchronously in two fan model (MMY-MAP1806* to MAP2206*).

− 148 −

7-7-9. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function

This function is provided to forcedly operate the fan of the outdoor unit in which a check code occurred or the fan of the normal outdoor unit by the switch operation on the interface P.C. board in the header unit.To specify which one of the follower units connected to the system had problem, use this function for the system stop due to a follower unit problem (Check code [E28]).

[Operation]<In case to operate the fan in the erroneous outdoor unit only>(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1].

(2) Press the push-switch SW04 for 2 seconds or more.(3) [E 1] is displayed on 7-segment display [A].(4) The fan of the outdoor unit in which problem occurred starts operation within approx. 10 seconds after [E 1] was displayed.

<In case to operate the fans in all the normal outdoor units>(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1].(2) Press the push-switches SW04 and SW05 at the same time for 2 seconds or more.(3) [E 0] is displayed on 7-segment display [A].(4) The fans of all the normal outdoor units start operation with the Max. fan speed within approx. 10 seconds after

[E 0] was displayed.

[Release]Press the push-switch SW05 on the interface P.C. board in the header unit for 2 seconds or more.The outdoor fan which was operated stops.* Check that [U. 1] is displayed on 7-segment display [A], and then finish the work.

[A] [B]7-segment display

Outdoor unit No. Check code display

− 149 −

7-7-10. Manual Adjustment Function of Outside Temperature (TO) Sensor

This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.

[Operation](1) Set the rotary switches on the interface P.C. board to numbers as follows:

• SW01/SW02/SW03 to [2/1/15]• 7-segment display: [ t o ]

(2) Keep pressing the push-switch SW04 on the interface P.C. board for 1 second or more. The mode changes to the TO sensor value fix manual mode.

(3) As shown in the following table, TO sensor value can be fixed by setting the rotary switch SW02 on the interface P.C. board.

[Clear]Return SW01/SW02/SW03 on the interface P.C. board in the outdoor unit to [1/1/1].

NOTE) If operated with TO sensor fixed by this function, the system control operation of the air conditioner may not be based on the specification of the product. Therefore an emergent operation should be restricted to a day or so.

SW02 7-segment display [B] TO sensor value

1 [ 10 ] 10°C

2 [ 15 ] 15°C

3 [ 20 ] 20°C

4 [ 25 ] 25°C

5 [ 30 ] 30°C

6 [ 35 ] 35°C

7 [ 40 ] 40°C

8 [ 43 ] 43°C

9 [ 45 ] 45°C

10 [ –15 ] -15°C

11 [ –10 ] -10°C

12 [ – 5 ] -5°C

13 [ 0 ] 0°C

14 [ 2 ] 2°C

15 [ 5 ] 5°C

16 [ 7 ] 7°C

When the outside temperature is 45ºC or more, set to 45ºC (SW02="9")

− 150 −

<Service support function list>

stnetnoc noitcnuF]A[ yalpsid tnemges-730WS20WS10WS

2

1

1

[J . C]Refrigerant circuit and control communication line check function (Cooling operation)

]H . J[2Refrigerant circuit and control communication line check function (Heating operation)

noitcnuf nepo lluf decrof VMP roodnI] . P[3

noitcnuf gnitanimircsid rellortnoc etomer roodnI]1 . A[4

noitcnuf noitarepo tset gnilooC] . C[5

noitcnuf noitarepo tset gnitaeH] . H[6

noitcnuf )FFO/NO( pots/trats evitcelloc roodnI]H . C[7

)noitcnuf nwod pmuP( noitcnuf noitarepo yrevocer tnaregirfer roodtuO]d. r[11

Check code clear function]r.E[61

2

1~16

3 [H . r] Solenoid valve forced open/close function

2 4~7 [F . d] Fan forced operation function

2 15 [t . o] Outside temperature sensor manual adjustment function

16 1~16

1 [0 1]~[1 6] Indoor No. 1 to 16 unit Indoor individual start/stop (ON/OFF) function

2 [1 7]~[3 2] Indoor No. 17 to 32 unit

3 [3 3]~[4 8] Indoor No. 33 to 48 unit

4 [4 9]~[6 4] Indoor No. 49 to 64 unit

stnetnoc noitcnuF]B/A[ yalpsid tnemges-730WS20WS10WS

1 1 1 [U 1] [ E28 ] Follower unit check code / Corresponding unit fan operation function

1~16

1~16

− 151 −

9 [F . ] Fan test operation function

7-7-11. Monitor Function of Remote Controller SwitchWhen using a remote controller with the model name RBC-AMT32E, the following monitor functions can be used.

Switching to the service monitor mode<Content>The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by switching to the service monitor mode from the remote controller.

[Procedure]

1 Push + buttons simultaneously for 4 seconds or more to call up the service monitor mode. The service monitor goes on, and temperature of the CODE No. 00 is firstly displayed.

2 Push the temperature setup buttons to select the CODE No. to be monitored. For displayed codes, refer to the table next page.

3 Push button to determine the item to be monitored.Then monitor the sensor temperature or operation status of indoor unit and the outdoor unit in the corresponding refrigerant line.

4 Pushing button returns the display to the normal display.

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

14

2

3

− 152 −

*1 Only a part of indoor unit types is installed with the discharge air temperature sensor. This temperature is not displayed for other types.*2 When the units are connected to a group, data of the header indoor unit only can be displayed.*3 The first digit of an CODE No. indicates the outdoor unit number.*4 The upper digit of an CODE No. -4 indicates the outdoor unit number.

1 , 5 ... U1 outdoor unit (Header unit) 2 , 6 ... U2 outdoor unit (Follower unit 1) 3 , 7 ... U3 outdoor unit (Follower unit 2)

*5 Only the CODE No. 9* of U1 outdoor unit (Header unit) is displayed.

tamrof yalpsiDeman ataD.oN EDOC Unit Remote controller display example

Indo

or u

nit d

ata

*2

00 Room temperature (Use to control) ×1 °C

[0024]=24°C

01 Room temperature (Remote controller) ×1 °C

C°1×Indoor suction air temperature (TA)20

C°1×)JCT( erutarepmet lioc roodnI30

C°1×)2CT( erutarepmet lioc roodnI40

C°1×)1CT( erutarepmet lioc roodnI50

06 Indoor discharge air temperature (TF) *1 ×1 °C

slp0051=]0510[slp01/1×gninepo VMP roodnI80

Sys

tem

dat

a stinu 84=]8400[tinu1×stinu roodni detcennoc fo .oNA0

0B Total horsepower of connected indoor units ×10 HP [0415]=41.5HP

[0003]=3 unitstinu1×stinu roodtuo detcennoc fo .oNC0

PH24=]0240[PH01×stinu roodtuo fo rewopesroh latoTD0

F9Suction temperature of air to air heat exchanger (TSA) *1 ×1

[0024] = 24FA Outside air temperature (TOA)*1 ×1

U1 U2 U310 20 30 MPa11 21 31 MPa12 22 32 13 23 33 15 25 35 16 26 36 17 27 37 18 28 38 19 29 39 1A 2A 3A 1C 2C 3C 1D 2D 3D 1E 2E 3E 1F 2F 3F

U1 U2 U350 60 70 pls51 61 71 pls52 62 72 pls53

63 73 A

5464 74 A

56 66 76 rps57 67 77 rps59 69 79 mode5A 6A 7A 5B 6B 7B 5D 6D 7D 5E 6E 7E 5F 6F 7F HP

Unit

Out

door

uni

t in

divi

dual

dat

a 3

*5 90 Heating/cooling recovery controlled 0: Normal1: Recovery controlled

[0010]=Heating recovery controlled[0001]=Cooling recovery controlled

91 Pressure release

0: Normal1: Release controlled

[0010]=Pressure release controlled92

CODE No. Data name Display format Remote controller display example

Discharge temperature release [0001]=Discharge temperature release controlled

93 Follower unit release(U2/U3 outdoor units)

[0100]=U2 outdoor unit release controlled[0010]=U3 outdoor unit release controlled[0001]=U4 outdoor unit release controlled

Compressor IPDU 2 heat sink temperature ×1Outdoor fan IPDU 1 heat sink temperature ×1Outdoor fan IPDU 2 heat sink temperature ×1Outdoor unit horsepower ×1 [0016] = 16HP

[0135] = 13.5A1 fan model : Compressor 2 and Outdoor fan 1 current (I2)2 fan model : Compressor 2 and Outdoor fan 2 current (I2) ×10

Compressor 1 revolutions ×10 [0642] = 64.2rpsCompressor 2 revolutions ×10

Out

door

uni

t ind

ivid

ual d

ata

2 *4

PMV1 opening ×1[0500] = 500plsPMV3 opening ×1

PMV4 opening ×11 fan model : Compressor 1 curent (I1)2 fan model : Compressor 1 and Outdoor fan 1 current (I1) ×10

Outdoor fan mode ×1 [0058] = 58 modeCompressor IPDU 1 heat sink temperature ×1

[0024] = 24

CODE No. Data name Display format Unit Remote controller display example

Temperature at liquid side (TL1) ×1Temperature at liquid side (TL2) ×1Temperature at liquid side (TL3) ×1

Out

door

uni

t ind

ivid

ual d

ata

1 *3

High-pressure sensor detention pressure (Pd) ×100 [0123] = 1.23MPaLow-pressure sensor detention pressure (Ps) ×100Compressor 1 discharge temperature (TD1) ×1

×1Outside ambient temperature (TO) ×1Suction temperature (TS1) ×1Suction temperature (TS3) ×1

[0024] = 24

Compressor 2 discharge temperature (TD2) ×1Outdoor coil temperature (TE1) ×1Outdoor coil temperature (TE2) ×1Outdoor coil temperature (TG1) ×1Outdoor coil temperature (TG2)

CODE No. Data name Display format Unit Remote controller display example

− 153 −

F3 Filter sign time ×1 h [2500] = 2500h

– 119 –

7-8. SMMS WAVE TOOL FOR SMARTPHONEThe NFC TAG DEVICE of the Outdoor unit communicates with SMARTPHONE that simplifies the install, the test operation and the maintenance of the SMMS-e. *NFC (Near Field Communication)As for the details, refer to the Operation Manual of "SMMS WAVE TOOL FOR SMARTPHONE" You can download the Application and the Operating Manual from the below URL or QR code.

QR code

URL：http://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool/

7-8-1. Prohibition/Permission of the NFC Setting・This Application enables the functions of the auto-address setup and the test operation of the outdoor unit with Smartphone

within 48 hours from the power input to the outdoor unit.・You should decide whether to make use of the functions of the auto-address setup and test operation at its own responsibility　and also be sure to confirm notices in the Operating Manual before performing the test operation.・If you want to disable the functions of the auto-address setup and the test operation, perform the following operations.

Switch setting of some functions prohibition

How to set the NFC operation all time prohibitionFollow the below procedure.

Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

(1) 2 1 14 - [ nF] [ c.00 ]

(Default setting)After the power input,:below 48 hours[NFC operation permit]:more than 48 hours[NFC operation prohibit]

(2) 2 1 14 Press for more than 5 secs [ nF] [ c.01 ] NFC operation　

all time prohibition

(3) 1 1 1 - [ U.1. ] [ - - - ] Return the switch

StepRotaly switch NFC operation　

setting

NFC TAG DEVICE

SMARTPHONE

− 154 −

How to set the NFC operation all time permissionFollow the below procedure.

*Do it again if the 7-segment display is different from the above.*The functions other than the auto-address setup and test operation of this Application can work normallyeven if the functions of the auto-address setup and the test operation are disabled.

7-8-2. Confirmation for the generation of the error of the NFCWhen you can not read out the information of the NFC Tag Device with your Smartphone, perform the following operations after restarting the power supply of the outdoor unit.If there is no problem, refer to the Operation Manual of "SMMS WAVE TOOL FOR SMARTPHONE".

TrademarkAndroid is a trademark or registered trademark of Google Inc.QR code is a trademark or registered trademark of DENSO WAVE Inc.

Push switch 7-segment displaySW01 SW02 SW03 SW04 [ A ] [ B ]

[ nF] [ c.Er ] Abnormal[ nF] [ c.00 ] Normal


StepRotaly switch NFC-I/F board

communication

(1) 2 16 14 -

Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

2 1 14 - [ nF] [ c.00 ]

(Default setting)After the power input,:below 48 hours[NFC operation permit]:more than 48 hours[NFC operation prohibit]

2 1 14 (Press 5 secs) [ nF] [ c.01 ] NFC operationall time prohibition

(2) 2 1 14 Press for more than 10 secs [ nF] [ c.02 ] NFC operation

all time permission


(1)

StepRotaly switch NFC operation　

setting

− 155 −

7-9. DRED (Demand response enabling device) (MMY-MAP***6HT8P-A) This model supports only DRM1.

Safety precautions• Read these “Safety precautions” carefully before installation.• Install in accordance with the wiring rules (AS/NZS 3000).• The precautions described below include important items regarding safety.

Observe them without fail.• The manufacturer shall not assume any liability for the damage caused by not observing the description of this

manual.

WARNING• Turn off the main power supply switch or breaker before attempting installation.

Make sure all power switches are off. Failure to do so may cause electric shock.• Connect the connecting wire correctly.

If the connecting wire is incorrect, electric parts may be damaged.• Ensure that all terminals are securely fi xed, so preventing any external forces having a negative effect on the

terminals.• Do not connect the DRED mains cable to the terminal block of the outdoor unit.

Improper installation may result in fi re.• Connect the demand connecting wires so that they do not come into contact with the refrigerant cycle parts or

refrigerant pipes.Wire breakage or water intrusion may cause electric shock or fi re.

• Do not screw the DRED signal receiver directly to the outdoor unit.The screw may damage the internal parts and cause an electric shock, fi re or refrigerant leak.

CAUTION• Wear heavy gloves during the installation work to avoid injury.

Connection procedureThis air conditioner complies with AS/NZS 4755.3.1.DRM available: DRM1The terminal block meets ELV requirements.

DRM3 DRM2 DRM1 COM

MCC-1653

DRED

DRM3 DRM2 DRM1 COM

WARNING• Do not connect the DRED mains cable to the terminal block of the outdoor unit.

Improper installation may result in fi re.• For the power supply of the DRED, prepare exclusive power supply separated from that of the outdoor unit.

Demand response mode DescriptionDRM1 Compressor offDRM2 Not availableDRM3 Not available

Demand response interfaceLocally procured

Connect the wire (4-wire) with a round terminalto the Demand section (COM, DRM1, DRM2,DRM3) on the terminal block.

Parts layout of the electrical control box

− 156 −

Wiring procedure• Bind securely together the communication wires and the demand connecting wires with the cord clamp to be not

affected by external forces.• If the demand connecting wires contain DRED terminal block connections, confi rm to fi x it so that DRED

terminal block connections comes to the left side from the cord clamp.

DRED

DRM3 DRM2 DRM1 COM

DRED terminalblock connections

Cord clamp

Demand responseinterface

Communication wires

Locally procured

Demand connecting wires

SHIELD

TO INDOOR UNIT

− 157 −

8 TROUBLESHOOTING8-1. Overview(1) Before engaging in troubleshooting

(a) Applicable modelsAll Super Module Multi System (SMMS-e) models.(Indoor units: MM∗-AP∗∗∗, Outdoor units: MMY-MAP∗∗∗6∗)(b) Tools and measuring devices required• Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.• Multimeter, thermometer, pressure gauge, etc.

(c) Things to check prior to troubleshooting (behaviors listed below are normal)

(2) Troubleshooting procedureWhen a problem occurs, proceed with troubleshooting in accordance with the procedure shown below.

NOTE

Rather than a product trouble (see the List of Check Codes below), the problem could have been caused by a microprocessor malfunction attributable to a poor quality of the power source or an external noise. Check for possible noise sources, and shield the remote controller wiring and signal wires as necessary.

esuac elbissoProivaheB.ON

1

A compressor would not start • Could it just be the 3-minute delay period (3 minutes after compressorshutdown)?

• Could it just be the air conditioner having gone thermostats OFF?• Could it just be the air conditioner operating in fan mode or put on the timer?• Could it just be the system going through initial communication?

2 An indoor fan would not start • Could it just be cold air discharge prevention control, which is part ofheating?

3An outdoor fan would not start or would change speed for no reason

• Could it just be cooling operation under low outside temperatureconditions?

• Could it just be defrosting operation?

4 An indoor fan would not stop • Could it just be the elimination of residual heat being performed as part ofthe air conditioner shutdown process after heating operation?

5 The air conditioner would not respond to a start/stop command from a remote controller

• Could it just be the air conditioner operation under external or remotecontrol?

Problem

Any other problem

Investigate check code displayed on interface P.C. board of header unit

Investigate check code displayed on interface P.C. board of relevant follower unit

Check the problem site or problem part

"E28" check code

CAUTION

The cooling performance may decling considerably when total operating capacity of cooling indoor units is less than 4 HP WHILE AMBIENT TEMPERATURE IS BELOW 0°C.

− 158 −

8-2. Troubleshooting MethodThe remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the problem site/problem part may be identified in the event of a problem by following the method described below.

The list below summarizes check codes detected by various devices. Analyze the check code according to where it is displayed and work out the nature of the problem in consultation with the list.• When investigating a problem on the basis of a display provided on the indoor remote controller or TCC-LINK central control remote controller -

See the “TCC-LINK remote control or main remote controller display” section of the list.• When investigating a problem on the basis of a display provided on an outdoor unit - See the “Outdoor 7-segment display” section of the list.• When investigating a problem on the basis of a wireless remote controller-controlled indoor unit - See the “Light sensor indicator light block”

section of the list.

List of Check Codes (Indoor Unit)(Check code detected by indoor unit)

Check code Display of receiving unit

Typical problem site Description of Check codeOutdoor 7-segment display Indicator light block

Sub-code Flash

E03 Indoor-remote controller periodic communication error

Communication from remote controller or network adaptor has been lost (so has central control communication).

E04

– –

– – Indoor-outdoor periodic communication error Signals are not being received from outdoor unit.

E08 E08 .nwo sti ot lacitnedi sserdda stceted tinu roodnIsserdda roodni detacilpuDsserdda roodni detacilpuD

E10 Indoor inter-MCU communication error

MCU communication between main controller and motor microcontroller is faulty.

E18Error in periodic communication between indoor header and follower unit

Periodic communication between indoor header and follower units cannot be maintained.

TLA––10F Indoor heat exchanger temperature sensor (TCJ) error

Heat exchanger temperature sensor (TCJ) has been open/short-circuited.

TLA––20F Indoor heat exchanger temperature sensor (TC2) error

Heat exchanger temperature sensor (TC2) has been open/short-circuited.

TLA––30F Indoor heat exchanger temperature sensor (TC1) error

Heat exchanger temperature sensor (TC1) has been open/short-circuited.

TLA––01FRoom air temperature sensor (TA/TSA) error

Room air temperature sensor (TA) has been open/short-circuited.

TLA––11F Discharge air temperature sensor (TF/TFA) error

Discharge air temperature sensor (TF) has been open/short-circuited.

MIS––92F P.C. board or other indoor error Open/Short of indoor air suction temperature sensor (TRA) was detected.

MIS––30L Duplicated indoor group header unit There is more than one header unit in group.

MIS––70L Connection of group control cable to stand-alone indoor unit

There is at least one stand-alone indoor unit to which group control cable is connected.

MIS–80L80L Indoor group address not setAddress setting has not been performed for one or more indoor units (also detected at outdoor unit end).

MIS––90L Indoor capacity not set Capacity setting has not been performed for indoor unit.

MIS––02L Duplicated central control address There is duplication in central control address setting.

L30 Detected indoor unit No. SIM Indoor external error input (interlock)

Unit shutdown has been caused by external error input (CN80).

TLA––10P Indoor AC fan error Indoor AC fan error is detected (activation of fan motor thermal relay).

P10

– –

– –

L30

P10 Detected indoor unit No. ALT Indoor overflow error Float switch has been activated.

TLA––21P Indoor DC fan error Indoor DC fan error (e.g. overcurrent or lock-up) is detected.

TLA––13P Other indoor unit error Follower unit cannot be operated due to header unit alarm (E03/L03/L07/L08).

IPDU: Intelligent Power Drive Unit (Inverter P.C. board): Lighting, : Flashing, : Goes off

ALT.: Flashing is alternately when there are two flashing LEDSIM: Simultaneous flashing when there are two flashing LED

Operation Timer Ready

TCC-LINK central control or main

remote controller display

ALT Outside air suction temperaturesensor (TOA) error

Open/Short of outside air suction temperature sensor (TOA) was detected.

ALT Indoor air suction temperature sen sor (TRA) error

Discharge air temperature sensor (TF) has been open/short-circuited.

––F17

––F18

− 159 −

(Check code detected by main remote controller)

(Check code detected by central control device)

Note: The same error, e.g. a communication error, may result in the display of different check codes depending on the device that detects it. Moreover, check codes detected by the main remote controller/central control device do not necessarily have a direct impact on airconditioner operation.


Typical problem site Description of problemMain remotecontroller

Outdoor 7-segment display Indicator light block

Sub-code Flash

E01 – –No master remote controller, faulty remote controller communication (reception)

Signals cannot be received from indoor unit; master remote controller has not been set (including two remote controller control).

E02 – – Faulty remote controller communication (transmission) Signals cannot be transmitted to indoor unit.

E09 – – Duplicated master remote controller

Both remote controllers have been set as master remote controller in two remote controller control (alarm and shutdown for header unit and continued operation for follower unit)


Typical problem site Description of problemTCC-LINK central control

Outdoor 7-segment display Indicator light block

Sub-code Flash

C05 – –

No indication (when main remote controller also in use)

Faulty central control communication (transmission)

Central control device is unable to transmit signal due to duplication of central control device.

C06 – – Faulty central control communication (reception)

Central control device is unable to receive signal.

sretpada krowten elpitluM–––Multiple network adapters are connected to remote controller communication line.

–––21CBlanket alarm for general-purpose device control interface

Device connected to general-purpose device control interface for TCC-LINK is faulty.

P30 – – As per alarm unit (see above)

Group control follower unit error

Group follower unit is faulty (unit No. and above detail [ ] displayed on main remote controller)



− 160 −

List of Check Codes (Outdoor Unit)(Check code detected by SMMS-e outdoor interface - typical examples)


Typical problem site Description of problemOutdoor 7-segment display TCC-LINK

central control or main remote

controller display

Indicator light block

Sub-code Flash

E06 Number of indoor units from which signal is received normally

Signal lack of indoor unit60EIndoor unit initially communicating normally fails to return signal (reduction in number of indoor units connected).

E07 – (E04)Indoor-outdoor communication circuit error

Signal cannot be transmitted to indoor units ( indoor units left without communication from outdoor unit).

E08 Duplicated indoor address (E08) Duplicated indoor addressMore than one indoor unit are assigned same address (also detected at indoor unit end).

E1201: Indoor-outdoor communication02: Outdoor-outdoor communication

E12 Automatic address starting error

• Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress.

• Outdoor automatic address setting is startedwhile automatic address setting for indoor units is in progress.

E15 – E15Indoor unit not found during automatic address setting

Indoor unit fails to communicate while automatic address setting for indoor units is in progress.

E16 00: Overloading01: Number of units connected E16 Too many indoor units

connected/overloading

Combined capacity of indoor units is too large.The maximum combined of indoor units shown in the specification table.

E19 00: No header unit02: Two or more header units E19 Error in number of outdoor

header unitsThere is no or more than one outdoor header unit in one refrigerant line.

E20

01: Connection of outdoor unit from other refrigerant line02: Connection of indoor unit from other refrigerant line

E20

Connection to other refrigerant line found during automatic address setting

Indoor unit from other refrigerant line is detected while indoor automatic address setting is in progress.

E23 – E23Outdoor-outdoor communication transmission error

Signal cannot be transmitted to other outdoor units.

E25 – E25 Duplicated follower outdoor address

There is duplication in outdoor addresses set manually.

E26 Address of outdoor unit from which signal is not received normally E26 Signal lack of outdoor unit

Follower outdoor unit initially communicating normally fails to do so (reduction in number of follower outdoor units connected).

rorre tinu rewollof roodtuO82E.oN tinu roodtuo detceteD82EOutdoor header unit detects fault relating to follower outdoor unit (detail displayed on follower outdoor unit).

13E13E There is no communication between IPDUs (P.C. boards) in inverter box.

TLA40F–40FOutdoor discharge temperature sensor (TD1) error

Outdoor discharge temperature sensor (TD1) has been open/short-circuited.

F05 – F05 ALTOutdoor discharge temperature sensor (TD2) error

Outdoor discharge temperature sensor (TD2) has been open/short-circuited.

F06 01: TE102: TE2 TLA60F

Outdoor heat exchanger liquid side temperature sensor (TE1, TE2) error

Outdoor heat exchanger liquid side temperature sensors (TE1, TE2) have been open/short-circuited.

TLA70F–70F Outdoor liquid temperature sensor (TL1,TL2,TL3) error

Outdoor liquid temperature sensor (TL1,TL2,TL3) has been open/short-circuited.

TLA80F–80FOutdoor outside air temperature sensor (TO) error

Outdoor outside air temperature sensor (TO) has been open/short-circuited.

Outdoor heat exchanger gas side temperaturesensor (TG1, TG2) error

Outdoor heat exchanger gas side temperaturesensors (TG1, TG2) have been open/short-circuited.

IPDU: Intelligent Power Drive Unit (Inverter P.C. board): Lighting, : Flashing, : Goes off

ALT.: Flashing is alternately when there are two flashing LEDSIM: Simultaneous flashing when there are two flashing LED


Circle (O): Faulty IPDU

01: TL102: TL203: TL3

F09 01: TG102: TG2

IPDU communication error Sub MCU communication error

80 : Communication error between MCU and Sub MCU

If "HELLO" is displayed on the oudoor 7-segment for 1 minute or more, turn off the power supply once and then turn on the power supply again after passage of 30 seconds or more. When the same symptom appears, it is considered there is a possibility of I/F board error.

1 2 1 2 1 2 1 2

01 10

02 11

03 12

08 13

09 18

0A 19

0B 1A

1B

A3-IPDU A3-IPDU Fan-IPDUFan-IPDU

− 161 −

TLA21F21FOutdoor suction temperature sensor (TS1,TS3) error

Outdoor suction temperature sensor (TS1,TS3) has been open/short-circuited.

TLA51F–51FOutdoor temperature sensor (TE1,TL1) wiring error

Wiring error in outdoor temperature sensors (TE1,TL1) has been detected.

TLA61F–61F Outdoor pressure sensor (Pd, Ps) wiring error

Wiring error in outdoor pressure sensors (Pd, Ps) has been detected.

– TLA32F32F Low pressure sensor (Ps) error Output voltage of low pressure sensor (Ps) is zero.

TLA42F–42F High pressure sensor (Pd) error

Output voltage of high pressure sensor (Pd) is zero or provides abnormal readings when compressors have been turned off.

rorre MORPEE roodtuOMIS13F–13FOutdoor EEPROM is faulty (alarm and shutdown for header unit and continued operation for follower unit)

H05 – H05Outdoor discharge temperature sensor (TD1) wiring error

Wiring/installation error or detachment of outdoor discharge temperature sensor (TD1) has been detected.

H06 – H06 Activation of low-pressure protection

Low pressure (Ps) sensor detects abnormally low operating pressure.

noitcetorp level lio woL70H–70H Temperature sensor for oil level detection (TK1,TK2,TK4,TK5) detects abnormally low oil level.

H08

01: TK1 sensor error 02: TK2 sensor error 04: TK4 sensor error 05: TK5 sensor error

H08Error in temperature sensor for oil level detection (TK1,TK2,TK4,TK5)

Temperature sensor for oil level detection (TK1,TK2,TK4,TK5) has been open/short-circuited.

H15 – H15Outdoor discharge temperature sensor (TD2) wiring error

Wiring/installation error or detachment of outdoor discharge temperature sensor (TD2) has been detected.

H16

01: TK1 oil circuit error 02: TK2 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error

H16 Oil level detection circuit error

No temperature change is detected by temperature sensor for oil level detection (TK1,TK2,TK4,TK5) despite compressor having been started.

MIS40L–40L Duplicated outdoor refrigerant line address

Identical refrigerant line address has been assigned to outdoor units belonging to different refrigerant piping systems.

L06Number of priority indoor units(check code L05 or L06 depending on individual unit)

MIS50LDuplicated priority indoor unit (as displayed on priority indoor unit)

More than one indoor unit have been set up as priority indoor unit.

MIS60L

Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit)

More than one indoor unit have been set up as priority indoor unit.

MIS)80L(–80LIndoor group address not set

Address setting have not been performed for one or more indoor units (also detected at indoor end).

tes ton yticapac roodtuOMIS01L–01L Outdoor unit capacity has not been set (after P.C. board replacement).

MIS71L–71L Outdoor model incompatibility error

Old model outdoor unit (prior to 6 series) has been connected.

MIS82L–82L Too many outdoor units connected

More than three outdoor units have been connected.




controller display


Sub-code FlashOperation Timer Ready

01: TS103: TS3

SIML23–L23 SW setting mistake Bit 3 and 4 of SW17 are turning on.

− 162 −

MG-CTT: Magnet contactor

sUDPI fo rebmun ni rorrEMIS92L92L There are insufficient number of IPDUs (P.C. boards) in inverter box.

MIS)03L(.oN tinu roodni detceteD03L Indoor external error input (interlock)

Indoor unit has been shut down for external error input in one refrigerant line (detected by indoor unit).

TLA30P–30P Outdoor discharge (TD1) temperature error

Outdoor discharge temperature sensor (TD1) has detected abnormally high temperature.

P05

00: Open phase detected

TLA50P

Open phase/power failureOpen phase is detected when power is turned on.Inverter DC voltage is too high (overvoltage) or too low (undervoltage).

01: Compressor 102: Compressor 2

Inverter DC voltage (Vdc) errorMG-CTT error

P07 01: Compressor 102: Compressor 2 TLA70P Heat sink overheating

errorTemperature sensor built into IPM (TH) detects overheating.

wolfrevo tinu roodnITLA)01P(detceted .oN tinu roodnI01PIndoor unit has been shutdown in one refrigerant line due to detection of overflow (detected by indoor unit).

TLA31P–31P Outdoor liquid backflow detection error

State of refrigerant cycle circuit indicates liquid backflow operation.

P15 01: TS condition02: TD condition noitceted kael saGTLA51P

Outdoor suction temperature sensor (TS1) detects sustained and repeated high temperatures that exceed standard value.

TLA71P–71P Outdoor discharge (TD2) temperature error

Outdoor discharge temperature sensor (TD2) detects abnormally high temperature.

TLA91Pdetceted .oN tinu roodtuO91P 4-way valve reversing error

Abnormality in refrigerating cycle is detected during heating operation.

TLA02P–02P Activation of high-pressure protection

High pressure (Pd) sensor detects high pressure that exceeds standard value.




controller display


Sub-code FlashOperation Timer Ready


1 2 1 2 1 2 1 2

01 10

02 11

03 12

08 13

09 18

0A 19

0B 1A

1B


− 163 −

(Check code detected by IPDU featuring in SMMS-e standard outdoor unit - typical examples)

Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration


Typical problem site Description of proplemOutdoor 7-segment display TCC-LINK


controller display


Sub-code Flash

F13 01: Compressor 102: Compressor 2 TLA31F

Error in temperature sensor built into indoor IPM (TH)

Temperature sensor built into indoor IPM (TH) has been open/short-circuited.

H01 01: Compressor 102: Compressor 2 nwodkaerb rosserpmoC10H Inverter current (Idc) detection circuit detects

overcurrent.

H02 01: Compressor 102: Compressor 2 H02 Compressor error (lockup) Compressor lockup is detected

H03 01: Compressor 102: Compressor 2 H03 Current detection circuit

errorAbnormal current is detected while inverter compressor is turned off.

P04 01: Compressor 102: Compressor 2 TLA40P Activation of high-pressure

SW High-pressure SW is activated.

P07 01: Compressor 102: Compressor 2 TLA70P Heat sink overheating

errorTemperature sensor built into IPM (TH) detects overheating or has been short-circuited.

P22

#0:Element short circuit#1:Position detection circuit error #3:Motor lock error#4:Motor current error#C:TH Sensor temperature error #D:TH Sensor short circuit/release error#E:Vdc voltage error∗Put in Fan IPDU No. in [#] mark

.rorre stceted UDPI naf roodtuOrorre UDPI naf roodtuOTLA22P

P2601: Compressor 102: Compressor 2 TLA62P Activation of IPM

short-circuit protection

Short-circuit protection for compressor motor driver circuit components is activated (momentary overcurrent).

P2901: Compressor 102: Compressor 2 TLA92P Compressor position

detection circuit errorCompressor motor position detection error is detected.


− 164 −

8-3. Troubleshooting Based on Information Displayed on Remote Controller

Using main remote controller (RBC-AMT32E)(1) Checking and testingWhen a problem occurs to an air conditioner, a check code and indoor unit No. are displayed on the display window of the remote controller.Check codes are only displayed while the air conditioner is in operation.If the display has already disappeared, access check code history by following the procedure described below.

(2) Ckeck code historyThe check code history access procedure is described below (up to four check code stored in memory). Check code history can be accessed regardless of whether the air conditioner is in operation or shut down.

<Procedure> To be performed when system at rest

1 Invoke the SERVICE CHECK mode by pressing the + buttons simultaneously and holding for at least 4

seconds.The letters “ SERVICE CHECK” light up, and the check code “01” is displayed, indicating the error history. This is accompanied by the indoor unit No. to which the check code history is related and a check code.

2 To check other check code history items, press thebutton to select another check code.Check code “01” (latest) Check code “04” (oldest) Note: Check code history contains four items.

3 When the button is pushed, normal display is restored.

REQUIREMENT

Do not push the button as it would erase the whole check code history of the indoor unit.

How to read displayed information

Check codeIndoor unit No. in which check code has occurred

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

13

321

2

Normal display is restored.

Steps to follow

0 1 2 3 4 5 6 7 8 9 A b C d E F H J L P

<7-segment display symbols>

<Corresponding alphanumerical letters>

− 165 −

Using TCC-LINK central remote controller (TCB-SC642TLE2)(1) Checking and testingWhen a problem occurs to an air conditioner, a Display of Unit No.check code and indoor unit No. are displayed on the display window of the remote controller. UNIT No.Check codes are only displayed while the air conditioner is in operation. Alternate blinking

If the display has already disappeared, access R.C. No.check code history by following the procedure described below.

(2) Check code historyThe check code history access procedure is described below (up to four check code stored in memory). Check code history can be accessed regardless of whether the air conditioner is in operation or shut down.

1 Push the + buttons simultaneously and hold for at least 4 seconds.

2 The letters “ SERVICE CHECK” light up, and the check code “01” is displayed.

3 When a group No. is selected (blinking), if there is an check code history, the UNIT No. and the latestcheck code history information are displayed alternately.*During this procedure, the temperature setting feature is unavailable.

4 To check other check code history items, push the button to select another check code (01-04.).

5 To check check code relating to another group, push (ZONE) and (GROUP) buttons to select a group No.Do not push the button as it would erase the whole check code history of the selected group.

6 To finish off the service check, push the button.

TEST

Display of check code

Display of Unit No.

Alternate blinking

UNIT No.

No.R.C.

TEST

Display of check code

− 166 −

Using indoor unit indicators (receiving unit light block) (wireless type)To identify the check code, check the 7-segment display on the header unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “8-2. Troubleshooting Method”.

: Goes off : Lighting : Blinking (0.5 seconds)

tluaf fo esuaCedoc kcehCkcolb thgiL

– Power turned off or error in wiring between receiving and indoor units

E01 Faulty receptionReceiving unit Error or poor contact in wiring

between receiving and indoor units

E02 Faulty transmission

E03 Loss of communication

E08 Duplicated indoor unit No. (address)Setting error

E09 Duplicated master remote controller

E10 Indoor unit inter-MCU communication error

E12 Automatic address starting error

E18 Error or poor contact in wiring between indoor units, indoor power turned off

E04 Error or poor contact in wiring between indoor and outdoor units(loss of indoor-outdoor communication)

E06 Faulty reception in indoor-outdoor communication (Signal lack of indoor unit)

E07 Faulty transmission in indoor-outdoor communication

E15 Indoor unit not found during automatic address setting

E16 Too many indoor units connected/overloading

E19 Error in number of outdoor header units

E20 Detection of refrigerant piping communication error during automatic address setting

E23 Faulty transmission in outdoor-outdoor communication

E25 Duplicated follower outdoor address

E26 Faulty reception in outdoor-outdoor communication, Signal lack of outdoor unit

E28 Outdoor follower unit error

E31 IPDU communication error, sub MCU communication error

P01 Indoor AC fan error

P10 Indoor overflow error

P12 Indoor DC fan error

P13 Outdoor liquid backflow detection error

P03 Outdoor discharge (TD1) temperature error

P04 Activation of outdoor high-pressure SW

P05Open phase/power failureInverter DC voltage (Vdc) errorMG-CTT error

P07 Outdoor heat sink overheating error - Poor cooling of electrical component (IPM) of outdoor unit

P15 Gas leak detection - insufficient refrigerant charging

P17 Outdoor discharge (TD2) temperature error

P19 Outdoor 4-way valve reversing error

P20 Activation of high-pressure protection

P22 Outdoor fan IPDU error

P26 Outdoor IPM short-circuit error

P29 Compressor position detection circuit error

P31 Shutdown of other indoor unit in group due to fault (group follower unit error)


All lights out

Blinking


Blinking


Alternate blinking


Alternate blinking



− 167 −

F01

Indoor unit temperature sensor errors

F02

F03

F10

F11

Heat exchanger temperature sensor (TCJ) error

Heat exchanger temperature sensor (TC2) error

Heat exchanger temperature sensor (TC1) error

Ambient temperature sensor (TA/TSA) error

Discharge temperature sensor (TF) error

F04

Outdoor unit temperature sensor errors

F05

F06

F07

F08

F12

F13

Discharge temperature sensor (TD1) error

Discharge temperature sensor (TD2) error

Heat exchanger temperature sensor (TE1, TE2) error

Liquid temperature sensor (TL1,TL2,TL3) error

Outside air temperature sensor (TO) error

Suction temperature sensor (TS1,TS3) error

Heat sink sensor (TH) error

F15 Wiring error in heat exchanger sensor (TE1) and liquid temperature sensor (TL1) Outdoor unit temperature sensor wiring/installation error

F16 Wiring error in outdoor high pressure sensor (Pd) and low pressure sensor (Ps)Outdoor pressure sensor wiring error

F23 Low pressure sensor (Ps) error Outdoor unit pressure sensor errorsF24 High pressure sensor (Pd) error

F29 Fault in indoor EEPROM

H01 Compressor breakdownOutdoor unit compressor-related errorsH02 Compressor lockup

H03 Current detection circuit error

H05 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD1)

H06 Abnormal drop in low-pressure sensor (Ps) reading Protective shutdown of outdoor unitH07 Abnormal drop in oil level

H08 Error in temperature sensor for oil level detection circuit (TK1, TK2, TK4 or TK5)

H15 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD2)

H16 Oil level detection circuit error - Error in outdoor unit TK1, TK2, TK4 or TK5 circuit

L03 Duplicated indoor group header unit

L05 Duplicated priority indoor unit (as displayed on priority indoor unit)

L06 Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit)

L07 Connection of group control cable to stand-alone indoor unit

L08 Indoor group address not set

L09 Indoor capacity not set

L04 Duplicated outdoor refrigerant line address

L10 Outdoor capacity not set

L17 Outdoor model incompatibility error

L20 Duplicated central control address

L28 Too many outdoor units connected

L29 Error in number of IPDUs

L30 Indoor external interlock error


Alternate blinking


Alternate blinking


Operation

Synchronized blinking

Timer Ready


Blinking

Operation


Timer Ready

Operation


Timer Ready

L23 SW setting mistake

F17

F18

Outside air suction temperature sensor (TOA) error

Indoor air suction temperature sensor (TRA) error

L02 Outdoor unit model unmatched error

− 168 −

Other (indications not involving check code)

F31 Outdoor EEPROM error


– Test run in progress

–Setting incompatibility(automatic cooling/heating setting for model incapable of it and heating setting for cooling-only model)


Operation


Timer Ready

Operation Timer


Ready

Alternate blinking


− 169 −

8-4. Check Codes Displayed on Remote Controller and SMMS-e Outdoor Unit (7-Segment Display on I/F Board) and Locations to Be Checked

For other types of outdoor units, refer to their own service manuals.

Check codeLocation

ofdetection

Description System status Error detection condition(s) Check items (locations)Main

remote controller

Outdoor 7-segment display

Checkcode Sub-code

E01 – –

Remotecontroller

Indoor-remote controller communication error(detected at remote controller end)

Stop of corresponding unit

Communication between indoor P.C. board and remote controller is disrupted.

• Check remote controller inter-unit tie cable (A/B).

• Check for broken wire or connector bad contact.

• Check indoor power supply.

• Check for defect in indoor P.C. board.

• Check remote controller address settings(when two remote controllers are in use).

• Check remote controller P.C. board.

E02 – –

Remotecontroller

Remote controller transmission error


Signal cannot be transmitted from remote controller to indoor unit.

• Check internal transmission circuit of remote controller.--- Replace remote controller as necessary.

E03 – –

Indoor unit

Indoor-remote controller communication error(detected at indoor end)


There is no communication from remote controller (including wireless) or network adaptor.

• Check remote controller and network adaptor wiring.

E04 – –

Indoor unit

Indoor-outdoor communication circuit error(detected at indoor end)


Indoor unit is not receiving signal from outdoor unit.

• Check order in which power was turned on for indoor and outdoor units.

• Check indoor address setting.

• Check indoor-outdoor tie cable.

• Check outdoor terminator resistor setting (SW30,Bit 2).

E06 E06

I/F Signal lack of indoor unit

All stop Indoor unit initially communicating normally fails to return signal for specified length of time.

• Check power supply to indoor unit.(Is power turned on?)

• Check connection of indoor-outdoor communication cable.

• Check connection of communication connectors on indoor P.C. board.

• Check connection of communication connectors on outdoor P.C. board.

• Check for defect in indoorP.C. board.

• Check for defect in outdoor P.C. board (I/F).

– E07 –

I/F Indoor-outdoor communication circuit error(detected at outdoor end)

All stop Signal cannot be transmitted from outdoor to indoor units for 30 seconds continuously.

• Check outdoor terminator resistor setting (SW30, Bit 2).

• Check connection of indoor-outdoor communication circuit.

No. of indoor units from which signal is received normally

− 170 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

E08 E08

Duplicated indoor address Indoor unitI/F

Duplicated indoor address

All stop More than one indoor unit are assigned same address.

• Check indoor addresses.• Check for any change

made to remote controller connection (group/individual) since indoor address setting.

E09 – –

Remote controller

Duplicated master remote controller


In two remote controller configuration (including wireless), both controllers are set up as master. (Header indoor unit is shut down with alarm, while follower indoor units continue operating.)

• Check remote controller settings.

• Check remote controller P.C. boards.

E10 – –

Indoor unit

Indoor inter-MCUcommunication error


Communication cannot be established/maintained upon turning on of power or during communication.

• Check for defect in indoorP.C. board

E12 E12

I/F Automatic address starting error

All stop • Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress.

• Outdoor automatic address setting is started while automatic address setting for indoor units is in progress.

• Perform automatic address setting again after disconnecting communication cable to that refrigerant line.

E15 E15 –

I/F Indoor unit not found during automatic address setting

All stop Indoor unit cannot be detected after indoor automatic address setting is started.

• Check connection of indoor-outdoor communication line.

• Check for error in indoor power supply system.

• Check for noise from other devices.

• Check for power failure.• Check for defect in indoor

P.C. board.

E16 E16

00: Overloading01-: No. of units connected

I/F Too many indoor units connected

All stop • Combined capacity of indoor units is too large.

Note: If this code comes up after backup setting for outdoor unit failure is performed, perform “No overloading detected” setting.

<“No overloading detected” setting method> Turn on SW09/Bit 2 on I/F P.C. board of outdoor header unit.

• More than 64 indoor units are connected.

• Check capacities of indoor units connected.

• Check combined HP capacities of indoor units.

• Check HP capacity settings of outdoor units.

• Check No. of indoor units connected.


01:Indoor-outdoorcommunication02:Outdoor-outdoorcommunication

− 171 −

For Cooling Only model, this check code is not displayed even if it exceeds the combined capacity of indoor units.

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

E18 – –

Indoor unit

Error in communication between indoor header and follower units


Periodic communication between indoor header and follower units cannot be maintained.

• Check remote controller wiring.

• Check indoor power supply wiring.

• Check P.C. boards of indoor units.

E19 E19

00:No header unit02:Two or more header units

I/F Error in number of outdoor header units

All stop • There are more than one outdoor header units in one line.

• There is no outdoor header unit in one line.

Outdoor header unit is outdoor unit to which indoor-outdoor tie cable (U1,U2) is connected.• Check connection of

indoor-outdoor communication line.


E20 E20

01:Connection of outdoor unitfrom other line02:Connection of indoor unit from other line

I/F Connection to other line found during automatic address setting

All stop Equipment from other line is found to have been connected when indoor automatic address setting is in progress.

Disconnect inter-line tie cable in accordance with automatic address setting method explained in “Address setting” section.

E23 E23 –

I/F Outdoor-outdoor communication transmission error

All stop Signal cannot be transmitted to other outdoor units for at least 30 seconds continuously.

• Check power supply to outdoor units. (Is power turned on?)

• Check connection of tie cables between outdoor units for bad contact or broken wire.

• Check communication connectors on outdoor P.C. boards.


• Check termination resistance setting for communication between outdoor units.

E25 E25 –I/F Duplicated

follower outdoor address

All stop There is duplication in outdoor addresses set manually.

Note: Do not set outdoor addresses manually.

E26 E26

Address of outdoor unit from which signal is not receivednormally

I/F Signal lack of outdoor unit

All stop Outdoor unit initially communicating normally fails to return signal for specified length of time.

• Backup setting is being used for outdoor units.

• Check power supply to outdoor unit. (Is power turned on?)

• Check connection of tie cables between outdoor units for bad contact or broken wire.

• Check communication connectors on outdoor P.C. boards.


E28 E28

I/F Outdoor follower unit error

All stop Outdoor header unit receives error code from outdoor follower unit.

• Check check code displayed on outdoor follower unit.

<Convenient functions>If SW04 is pressed and held for at least 1 second while [E28] is displayed on the 7-segment display of outdoor header unit, the fan of the outdoor unit that has been shut down due to an error comes on.If SW04 and SW05 are pressed simultaneously, the fans of normal outdoor units come on.To stop the fan or fans, press SW05 on its own.

Detected outdoor unit No.

− 172 −

Check codeLocation

ofdetection

Description System status

Error detection condition(s) Check items (locations)Main

remote controller


Checkcode Sub-code

E31 E31

I/F IPDU communication error

All stop Communication is disrupted between IPDUs (P.C. boards) in inverter box.

• Check wiring and connectors involved in communication between IPDU-I/F P.C. board for bad contact or broken wire.

• Check for defect in outdoor P.C. board (I/F, A3-IPDU or Fan IPDU).

• Check for external noise.

F01 – –

Indoor unit

Indoor TCJ sensor error


Sensor resistance is infinity or zero (open/short circuit).

• Check connection of TCJ sensor connector and wiring.

• Check resistance characteristics of TCJ sensor.


F02 – –

Indoor unit

Indoor TC2 sensor error



• Check connection of TC2 sensor connector and wiring.

• Check resistance characteristics of TC2 sensor.


F03 – –

Indoor unit

Indoor TC1 sensor error



• Check connection of TC1 sensor connector and wiring.

• Check resistance characteristics of TC1 sensor.


F04 F04 –

I/F TD1 sensor error

All stop Sensor resistance is infinity or zero (open/short circuit).

• Check connection of TD1 sensor connector.

• Check resistance characteristics of TD1 sensor.


F05 F05 –

I/F TD2 sensor error


• Check connection of TD2 sensor connector.



F06 F0601: TE1 sensor error02: TE2 sensor error

I/F TE1/TE2 sensor error


• Check connection of TE1/TE2 sensor connectors.

• Check resistance characteristics of TE1/TE2 sensors.


F07 F07

I/F TL1/TL2/TL3 sensor error


• Check connection of TL1/TL2/TL3 sensor connector.

• Check resistance characteristics of TL1/TL2/TL3 sensor.



01: TL1 sensor error02: TL2 sensor error03: TL3 sensor error

Communication error between MCU and Sub MCU

All stop Communication between MCU and Sub MCU stopped.

• Operation of power supply reset (OFF for 60 seconds or more)

• Outdoor I/F PC board error check

80

1 2 1 2 1 2 1 2

01 10

02 11

03 12

08 13

09 18

0A 19

0B 1A

1B


− 173 −

Check codeLocation

ofdetection



remote controller


Checkcode Sub-code

F08 F08 –

I/F TO sensor error


• Check connection of TO sensor connector.

• Check resistance characteristics of TO sensor.


F10 – –

Indoor unit

Indoor TA sensor error

Stop of correspondingunit


• Check connection of TA sensor connector and wiring.

• Check resistance characteristics of TA sensor.


F11 – –

Indoor unit

Indoor TF sensor error



• Check connection of TF sensor connector and wiring.

• Check resistance characteristics of TF sensor.


F12 F12

I/F TS1/TS3 sensor error


• Check connection of TS1/TS3 sensor connector

• Check resistance characteristics of TS1/TS3sensor.

• Check for defect

F13 F13 01: Compressor 1 side 02: Compressor 2 side

IPDU TH sensor error


• Defect in IPM built-in temperature sensor

Replace A3-IPDU P.C. board.

F15 F15 –

I/F Outdoor temperature sensor wiring error (TE1, TL1)

All stop During compressor operation in HEAT mode, TL1 continuously provides temperature reading higher than indicated by TL1 by at least specified margin for 3 minutes or more.

• Check installation of TE1 and TL1 sensors.

• Check resistance characteristics of TE1 and TL1 sensors.

• Check for outdoor P.C. board (I/F) error.

F16 F16 –

I/F Outdoor pressure sensor wiring error (Pd, Ps)

All stop Readings of high-pressure Pd sensor and low-pressure Ps sensor are switched.Output voltages of both sensors are zero.

• Check connection of high-pressure Pd sensor connector.

• Check connection of low-pressure Ps sensor connector.

• Check for defect in pressure sensors Pd and Ps.

• Check for error in outdoor P.C. board (I/F).

• Check for deficiency in compressive output of compressor.

F23 F23 –

I/F Ps sensor error

All stop Output voltage of Ps sensor is zero.

• Check for connection error involving Ps sensor and Pd sensor connectors.

• Check connection of Ps sensor connector.

• Check for defect in Ps sensor.• Check for deficiency in

compressive output of compressor.

• Check for defect in 4-way valve.


• Check for defect in SV4 circuit.

F24 F24 –

I/F Pd sensor error

All stop Output voltage of Pd sensor is zero (sensor open-circuited). Pd > 4.15MPa despite compressor having been turned off.

• Check connection of Pd sensor connector.

• Check for defect in Pd sensor.• Check for defect in outdoor

P.C. board (I/F).

• Check connection of TG1/TG2sensor connectors.

• Check resistance characteristicsof TG1/TG2 sensors.

• Check for defect in outdoor P.C.board (I/F).

Sensor resistance is infinityor zero (open/short circuit).

All stopTG1/TG2sensor error

I/F

F09 F09 01: TG1 sersor error 02: TG2 sersor error

01: TS1 sersor error03: TS3 sersor error

− 174 −

MG-CTT: Magnet contactor*1 Total shutdown in case of header unit

Continued operation in case of follower unit

Check codeLocation

ofdetection



remote controller


Checkcode Sub-code

F29 – –Indoor unit

Other indoor error


Indoor P.C. board does not operate normally.

• Check for defect in indoor P.C. board (faulty EEPROM)

F31 F31 –

I/F Outdoor EEPROM error

All stop *1 Outdoor P.C. board (I/F) does not operate normally.

• Check power supply voltage.• Check power supply noise.• Check for defect in outdoor

P.C. board (I/F).

H01 H01

01: Compressor 1 side 02: Compressor 2 side

IPDU Compressor breakdown

All stop Inverter current detection circuit detects overcurrent and shuts system down.

• Check power supply voltage. (AC380-415V ± 10%).

• Check for defect in compressor.

• Check for possible cause ofabnormal overloading.

• Check for defect in outdoor P.C. board (A3-IPDU).

H02 H02


IPDU Compressor error (lockup)MG-CTT error

All stop Overcurrent is detected several seconds after startup of inverter compressor.

• Check for defect in compressor.

• Check power supply voltage. (AC380-415V ± 10%).

• Check compressor system wiring, particularly for open phase.

• Check connection of connectors/terminals on A3-IPDU P.C. board.

• Check conductivity of case heater.(Check for refrigerant problem inside compressor.)


• Check outdoor MG-CTT.

H03 H03


IPDU Current detection circuit error

All stop Current flow of at least specified magnitude is detected despite inverter compressor having been shut turned off.

• Check current detection circuit wiring.

• Check defect in outdoor P.C. board (A3-IPDU).

H05 H05 –

I/F TD1 sensor miswiring (incomplete insertion)

All stop Discharge temperature of compressor 1 (TD1) does not increase despite compressor being in operation.

• Check installation of TD1 sensor.

• Check connection of TD1 sensor connector and wiring.



H06 H06 –

I/F Activation of low-pressure protection

All stop Low-pressure Ps sensor detects operating pressure lower than 0.02MPa.

• Check service valves to confirm full opening(both gas and liquid sides).

• Check outdoor PMVs for clogging (PMV1, 3).

• Check for defect in SV2 or SV4 circuits.

• Check for defect in low-pressure Ps sensor.

• Check indoor filter for clogging.• Check valve opening status of

indoor PMV.• Check refrigerant piping for

clogging.• Check operation of outdoor fan

(during heating).• Check for insufficiency in

refrigerant quantity.

− 175 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

H07 H07 –

I/F Low oil level protection

All stop Operating compressor detects continuous state of low oil level for about 2 hours.

<All outdoor units in corresponding line to be checked>• Check balance pipe

service valve to confirm full opening.

• Check connection and installation of TK1, TK2, TK4, and TK5 sensors.

• Check resistance characteristics of TK1, TK2, TK4, and TK5 sensors.

• Check for gas or oil leak insame line.

• Check for refrigerant problem inside compressor casing.

• Check SV3A, SV3B, SV3C, SV3D valves for defect.

• Check oil return circuit of oil separator for clogging.

• Check oil equalizing circuit for clogging.

H08 H08

01: TK1 sensor error 02: TK2 sensor error 04: TK4 sensor error 05: TK5 sensor error

I/F Error in temperature sensor for oil level detection


• Check connection of TK1 sensor connector.

• Check resistance characteristics of TK1 sensor.














H15 H15 –

I/F TD2 sensor miswiring (incomplete insertion)

All stop Discharge temperature of (TD2) does not increase despite compressor 2 being in operation.

• Check installation of TD2 sensor.

• Check connection of TD2 sensor connector and wiring.



− 176 −

Check codeLocation

ofdetection


Error detection condition(s)Main Check items (locations)

remote Outdoor 7-segment display

controller Checkcode Sub-code

Oil leveldetectioncircuit error

All stop01: TK1 oil circuit error02: TK2 oil circuit error 04: TK4 oil circuit error 05: TK5 oil circuit error

• •

No temperature change is detected by TK1 despite compressor 1 having been started.

•

•

•

Check for disconnection of TK1 sensor. Check resistance characteristics of TK1 sensor.Check for connection error involving TK1, TK2, , TK4, and TK5 sensorsCheck for clogging in oil equalizing circuit capillary and faulty operation in check valve.Check for refrigerant entrapment inside compressor.

• •

No temperature change is detected by TK2 despite compressor 2 having been started.

•

•

•


I/F

No temperaturechange is detectedby TK4 despitecompressor having

•

been started.

•

•

•

•


No temperaturechange is detectedby TK5 despitecompressor having

•

been started.

•

•

•

•

H16


H16

− 177 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

L03 – –

Indoor unit

Duplicated indoor header unit


There are more than one header units in group.

• Check indoor addresses.• Check for any change

made to remote controller connection (group/individual) since indoor address setting.

L04 L04 –

I/F Duplicated outdoor line address

All stop There is duplication in line address setting for outdoor units belonging to different refrigerant piping systems.

• Check line addresses.

L05 – –

I/F Duplicated priority indoor unit (as displayed on priority indoor unit)

All stop More than one indoor units have been set up as priority indoor unit.

• Check display on priorityindoor unit.

L06 L06

No. of priority indoor units I/F Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit)

All stop More than one indoor units have been set up as priority indoor unit.

• Check displays on priority indoor unit and outdoor unit.

L07 – –

Indoor unit

Connection of group control cable to stand-alone indoor unit


There is at least one stand-alone indoor unit to which group control cable is connected.

• Check indoor addresses.

L08 L08 –

Indoor unit

Indoor group / addresses not set


Address setting has not been performed for indoor units.

• Check indoor addresses.Note:

This code is displayed when power is turned onfor the first time after installation.

L09 – –Indoor unit

Indoor capacity not set


Capacity setting has not been performed for indoor unit.

Set indoor capacity. (DN = 11)

L10 L10 –

I/F Outdoor capacity not set

All stop Jumper wire provided on P.C. board for servicing I/F P.C. board has not been removed as required for given model.

Check model setting of P.C. board for servicing outdoor I/F P.C. board.

L20 – –

Network adaptorIndoor unit

Duplicated central control address

All stop There is duplication in central control address setting.

• Check central control addresses.

• Check network adaptor P.C. board .

L28 L28 –

I/F Too many outdoor units connected

All stop There are more than three outdoor units.

• Check No. of outdoor units connected (Only up to 3units per system allowed).

• Check communication lines between outdoor units.


Check switch setting of Bit 3 and 4 of SW17 in outdoor P.C. board (I/F).

Outdoor P.C. board (I/F) does not operate normally.

All stopSW setting mistake

I/F

––L23

•

L02 L02 –

Indoor unit

Outdoor units model disagreement error


In case of different outdoor unit (Not corresponded to Air to Air Heat Exchanger type)

• Check outdoor unit model.(Check whether the outdoor unit corresponds to Air to Air Heat Exchanger type or not.)

− 178 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

L29 L29

I/F Error in No. of IPDUs

All stop Insufficient number of IPDUs are detected when power is turned on.

• Check model setting of P.C. board for servicing outdoor I/F P.C. board.

• Check connection of UARTcommunication connector.

• Check A3-IPDU, fan IPDU, and I/F P.C. board for defect.

L30 L30

Detected indoor address Indoor unit

External interlock of indoor unit


• Signal is present at external error input terminal (CN80) for 1 minute.

When external device is connected to CN80 connector:1) Check for defect in

external device.2) Check for defect in indoor

P.C. board.When external device is not connected to CN80 connector:1) Check for defect in indoor

P.C. board.

– L31 – I/F Extended IC error

Continued operation

There is part failure in P.C. board (I/F).

Check outdoor P.C. board (I/F).

P01 – –Indoor unit

Indoor fan motor error


• Check the lock of fan motor (AC fan).

• Check wiring.

P03 P03 –

I/F Discharge temperature TD1 error

All stop Discharge temperature (TD1) exceeds 115°C.

• Check outdoor service valves (gas side, liquid side) to confirm full opening.

• Check outdoor PMVs (PMV1, 3) for clogging.


• Check for insufficiency in refrigerant quantity.


• Check for leakage of SV4 circuit.

• Check SV4 circuit (wiring or installation error in SV41 or SV42).


1 2 1 2 1 2 1 2

01 10

02 11

03 12

08 13

09 18

0A 19

0B 1A

1B


− 179 −


Check codeLocation

ofdetection



remote controller


Check code Sub-code

P04 P04


IPDU Activation of high-pressure SW

All stop High-pressure SW is activated.

• Check connection of high-pressure SW connector.

• Check for defect in Pdpressure sensor.


• Check for defect in outdoor fan.

• Check for defect in outdoor fan motor.

• Check outdoor PMVs (PMV1, 3) for clogging.

• Check indoor/outdoor heat exchangers for clogging.

• Check for short-circuiting ofoutdoor suction/discharge air flows.

• Check SV2 circuit for clogging.


• Check for error in indoor fan system (possible cause of air flow reduction).

• Check opening status ofindoor PMV.

• Check indoor-outdoor communication line for wiring error.

• Check for faulty operation of check valve in discharge pipe convergent section.

• Check gas balancing SV4 valve circuit.

• Check SV5 valve circuit.• Check for refrigerant

overcharging.

P05 P05

00: I/F Detection of open phase/phase sequence

All stop • Open phase is detected when power is turned on.

• Inverter DCvoltage is too high (overvoltage) or too low (undervoltage).



Inverter DC voltage (Vdc) error (compressor)MG-CTT error

P07 P07


IPDUI/F

Heat sink overheating error

All stop Temperature sensor built into IPM (TH) is overheated.

• Check power supply voltage.• Check outdoor fan system

error.• Check heat sink cooling duct

for clogging.• Check IPM and heat sink for

thermal performance for faulty installation.(e.g. mounting screws and thermal conductivity)

• Check for defect in A3-IPDU.(faulty IPM built-in temperature sensor (TH))

P10 P10

Detected indoor address Indoor unit

Indoor overflow error All stop • Float switch operates.

• Float switch circuit is open-circuited or disconnected atconnector.

• Check float switch connector.• Check operation of drain

pump.• Check drain pump circuit.• Check drain pipe for clogging.• Check for defect in indoor

P.C. board.

P12 – –

Indoor unit

Indoor fan motor error Stop of corresponding unit

• Motor speed measurements continuously deviate from target value.

• Overcurrent protection is activated.

• Check connection of fan connector and wiring.

• Check for defect in fan motor.• Check for defect in indoor

P.C. board.• Check impact of outside air

treatment (OA).

• Check wiring of outdoor power supply.

− 180 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

P13 P13 –

I/F Outdoor liquid backflow detection error

All stop <During cooling operation> When system is in cooling operation, high pressure is detected in follower unit that has been turned off.<During heating operation> When system is in heating operation, outdoor PMV 1 or 3 continuously registers opening of 300p or less while under superheat control.

• Check full-close operation of outdoor PMV (1, 3, 4).

• Check for defect in Pd or Ps sensor.

• Check gas balancing circuit (SV2) for clogging.

• Check balance pipe.• Check SV3B circuit for

clogging.• Check defect in outdoor

P.C. board (I/F).• Check capillary of oil

separator oil return circuit for clogging.

• Check for leakage of check valve in discharge pipe convergent section.

P15 P15

01: TS condition I/F Gas leakdetection(TS1 condition)

All stop Protective shutdown due to sustained suction temperature at or above judgment criterionfor at least 10 minutes is repeated four times or more.<TS error judgment criterion>In cooling operation: 60°CIn heating operation: 40°C

• Check for insufficiency inrefrigerant quantity.


• Check PMVs (PMV1, 3) for clogging.

• Check resistance characteristics of TS1 sensor.


• Check SV4 circuit for leakage

02: TD condition I/F Gas leak detection(TD condition)

All stop Protective shutdown due to sustained discharge temperature (TD1 or TD2) at or above 108 °C for at least 10 minutes is repeated four times or more.

• Check for insufficiency inrefrigerant quantity.

• Check PMVs (PMV 1, 3) for clogging.

• Check resistance characteristics of TD1and TD2 sensors.

• Check indoor filter for clogging.

• Check piping for clogging.• Check SV4 circuit (for

leakage or coil installation error).

P17 P17 –

I/F Discharge temperature TD2 error

All stop Discharge temperature (TD2) exceeds 115°C.


• Check outdoor PMVs (PMV1, 3, 4) for clogging.



• Check SV4 circuit for leakage.

• Check SV4 circuit (for wiring or installation error involving SV41 and SV42).

− 181 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

P19 P19

Detected outdoor unit No. I/F 4-way valve reversing error

All stop Abnormal refrigerating cycle data is collected during heating operation.

• Check for defect in main body of 4-way valve.

• Check for coil defect in 4-way valve and loose connection of its connector.

• Check resistance characteristics of TS1 and TE1,TE2 sensors.

• Check output voltage characteristics of Pd and Ps pressure sensors.

• Check for wiring error involving TE1 and TL1sensors.

P20 P20 –

I/F Activation of high-pressure protection

All stop <During cooling operation> Pd sensor detects pressure equal to or greater than 3.85 MPa.<During heating operation> Pd sensor detects pressure equal to or greater than 3.6 MPa.

• Check for defect in Pd pressure sensor.

• Check service valves (gas side, liquid side) to confirm full opening.

• Check for defect in outdoor fan.

• Check for defect in outdoor fan motor.

• Check outdoor PMV (PMV1, 3, 4) for clogging.

• Check indoor/outdoor heat exchangers for clogging.

• Check for short-circuiting of outdoor suction/discharge air flows.

• Check SV2 circuit for clogging.


• Check for defect in indoor fan system (possible cause of air flow reduction).

• Check opening status of indoor PMV.

• Check indoor-outdoor communication line for wiring error.

• Check for faulty operation of check valve in discharge pipe convergent section.

• Check gas balancing SV4 valve circuit.

• Check SV5 valve circuit.• Check for refrigerant

overcharging.

− 182 −

Check codeLocation

ofdetection


remote controller


Checkcode Sub-code

P26 P26


IPDU IPM short-circuit protection error

All stop Overcurrent is momentarily detected during startup of compressor.

• Check connector connection and wiring on A3-IPDU P.C. board.

• Check for defect in compressor (layer short-circuit).


P29 P29


IPDU Compressor positiondetection circuit error

All stop Position detection is not going on normally.

• Check wiring and connector connection.

• Check for compressor layer short-circuit.

• Check for defect in A3-IPDU P.C. board.

– P31 –

Indoor unit

Other indoor error(group follower unit error)


There is error in other indoor unit in group, resulting in detection of E07/L07/L03/L08.

• Check indoor P.C. board.

• Check fan motor.• Check for defect in fan IPDU

P.C. board.

• Check fan motor.• Check connection of fan

motor connector.• Check for defect in fan IPDU

P.C. board.


P.C. board.

• Check fan motor.• Check connection of fan motor connector.

• Check for defect in fan IPDU P.C. board.


•

• Check power voltage of the main power supply.

• Check for defect in fan IPDU

• Check connection of fanIPDU P.C. board.

(Sub code: #0)Fan IPDU over current protection circuitFlow of current equal to or greater than the specified value is detected during startup of the fan.

(Sub code: #1)Fan IPDU position detection circuit Position detection is not going on normally.

(Sub code: #3)Gusty wind, an obstruction, or another external factor Speed estimation is not going on normally.

(Sub code: #4)Fan IPDU over current protection circuitFlow of current equal to or greater than the specified value is detected during operation of the fan.

(Sub code: #C)Higher temperature than the specified value is detected during operation of the fan.

(Sub code: #D)The resistance value of the sensor is infinite or zero (open or short circuit).

(Sub code: #E)Fan IPDU DC voltage protection circuitThe DC voltage higher or lower than the specified value is detected.

All stop

All stop

All stop

All stop

All stop

All stop

All stop

IPDU Outdoor fanIPDU error*Put in Fan IPDU No. in [#] mark

#0:Element short circuit

#1:Position detection circuit error

#3:Motor lock error

#4:Motor current error

#C:TH sensor temperature error

#D:TH sensor short circuit/release error

#E:Vdc voltage error

P22 P22

P.C. board.

Check for defect in fan IPDU P.C. board.

P.C. board.

− 183 −

Check codes Detected by TCC-LINK Central Control DeviceCheck code

Locationof

detectionDescription System status Error detection

condition(s) Check items (locations)Main remote

controller


Sub-code

–50C

TCC-LINK TCC-LINK central control device transmission error

Continued operation

Central control device is unable to transmit signal.

• Check for defect in central control device.

• Check for defect in central control communication line.

• Check termination resistance setting.

–60C

TCC-LINKcentral control device reception error

Continued operation

Central control device is unable to receive signal.

• Check for defect in central control device.

• Check for defect in central control communication line.

• Check terminator resistorsetting.

• Check power supply for devices at other end of central control communication line.

• Check defect in P.C. boards of devices at other end of central control communication line.

–21C

General-purpose deviceI/F

Batch alarm for general-purpose device control interface

Continued operation

Error signal is input to control interface for general-purpose devices.

• Check error input.

P30

Differs according to nature of alarm-causing error

TCC-LINK Group control follower unit error

Continued operation

Error occurs in follower unit under group control.([P30] is displayed on central control remote controller.)

• Check check code of unit that has generated alarm.

(L20 displayed.)Duplicated central control address

Continued operation

There is duplication in central control addresses.

• Check address settings.

− 184 −

Points to Note When Servicing Compressor(1) When checking the outputs of inverters, remove the wiring from all the compressors.

How to Check Inverter Output(1) Turn off the power supply.(2) Remove compressor leads from the IPDU P.C. board (A3-IPDU). (Be sure to remove all the leads.)(3) Turn on the power supply and start cooling or heating operation.

Be careful not to make simultaneous contact with two or more faston connectors for compressor leads or a faston connector and some other object (e.g. the unit cabinet).

(4) Check the output voltage across each pair of inverter-side (CN201, 202, 203).If the result is unsatisfactory according to the judgment criteria given in the table below, replace the IPDU P.C. board.

* When connecting the compressor leads back to the compressor terminals after checking the output, check thefaston connectors thoroughly to ensure that they are not crooked. If there is any loose connector, tighten it witha pair of pliers, etc. before connecting the lead.

How to Check Resistance of Compressor Winding(1) Turn off the power supply.(2) Remove compressor leads from the compressors.(3) With each compressor, check the phase-to-phase winding resistances and winding-to-outdoor cabinet

resistance using a multimeter.• Earth fault?

It is normal if the winding-to-outdoor cabinet resistance is 10M or more.• Inter-winding short circuit?

It is normal if the phase-to-phase resistances are in the 0.1-1.0 range. (Use a digital multimeter.)

How to Check Outdoor Fan Motor(1) Turn off the power supply.(2) Remove fan motor leads from the IPDU P.C. board for the outdoor fan (CN301-CN303).(3) Rotate the fan by hand. If the fan does not turn, the fan motor is faulty (locked up). Replace the fan motor.

If the fan turns, measure the phase-to-phase winding resistances using a multimeter. It is normal if the measurements are in the 8.1-9.9 range. (Use a digital multimeter.)

No. Measured leads Criterion

1 Red-White 380~580V

2 White-Black 380~580V

3 Black-Red 380~580V

− 185 −

8-5. Diagnosis procedure for each check code

Yes

No

Yes

Yes

Yes

No

Yes

No

No

No

Yes

No

[E01

]esua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Che

ck c

ode

Cau

seC

heck

cod

e na

me

* T

he c

heck

cod

e is

not

indi

cate

d on

the

cent

ral c

ontr

ol d

evic

e or

the

7-se

gmen

t ind

icat

ion

on th

e ou

tdoo

r un

it.

Yes

No

[E02

]

[E03

]

Com

mun

icat

ion

erro

r be

twee

n th

e in

door

uni

t and

rem

ote

cont

rolle

r (d

etec

ted

on th

e re

mot

e co

ntro

ller)

Sig

nal t

rans

mis

sion

err

or o

n th

e re

mot

e co

ntro

ller

Com

mun

icat

ion

erro

r be

twee

n th

e in

door

uni

t and

rem

ote

cont

rolle

r (d

etec

ted

on th

e in

door

uni

t)

1. R

emot

e co

ntro

ller

inte

r-un

it w

ire e

rror

2. In

door

pow

er e

rror

3. In

door

P.C

. boa

rd e

rror

4. R

emot

e co

ntro

ller

addr

ess

setu

p er

ror

5. R

emot

e co

ntro

ller

P.C

. boa

rd e

rror

Una

ble

to s

end

sign

als

to in

door

uni

ts

No

com

mun

icat

ion

from

the

rem

ote

cont

rolle

r/co

mm

unic

atio

n ad

apte

r

Is th

ein

ter-

unit

wire

of

rem

ote

cont

rolle

rs (

A/B

) no

rmal

?

The

com

mun

icat

ion

wiri

ng

betw

een

the

rem

ote

cont

rolle

r an

d in

door

uni

ts

is c

onne

cted

pro

perly

.

Is th

ere

nodi

scon

nect

ion

orco

nnec

tor

cont

act e

rror

on

harn

ess

out o

f ter

min

albl

ock

of in

door

unit?

Is a

gro

up c

ontr

ol

oper

atio

n?

Is p

ower

of e

ach

indo

or

unit

turn

ed o

n?

Is p

ower

app

lied

to r

emot

e co

ntro

ller?

AB

term

inal

s: A

ppro

x.

DC

18V

Is s

etup

of t

wo

rem

ote

cont

rolle

rs

with

out h

eade

r re

mot

e co

ntro

ller?

Cor

rect

inte

r-un

it ca

ble

of

rem

ote

cont

rolle

r.C

onne

ct th

e w

iring

pro

perly

.

The

tran

smis

sion

circ

uit i

n th

e re

mot

e co

ntro

ller

mal

func

tions

. R

epla

ce th

e re

mot

e co

ntro

ller.

Cor

rect

con

nect

or c

onne

ctio

n an

d ch

eck

circ

uit w

iring

.

Che

ck p

ower

con

nect

ion

stat

us o

f ind

oor

unit.

(Tu

rn o

n po

wer

aga

in.)

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

Che

ck r

emot

e co

ntro

ller

P.C

. bo

ard.

Def

ect

Rep

lace

Cha

nge

one

to h

eade

r/ot

her

to

follo

wer

. (R

emot

e co

ntro

ller

addr

ess

conn

ecto

r)

The

err

or is

det

ecte

d w

hen

the

indo

or u

nit c

anno

t rec

eive

the

sign

al fr

om th

e w

ired

rem

ote

cont

rolle

r. C

heck

the

com

mun

icat

ion

wiri

ng fr

om th

e re

mot

e co

ntro

ller A

and

B.

The

che

ck c

ode

[E03

] is

not i

ndic

ated

on

the

rem

ote

cont

rolle

r as

its

com

mun

icat

ion

is d

own.

H

owev

er, t

he c

ode

is in

dica

ted

on th

e ce

ntra

l con

trolle

r of T

CC

-LIN

K.

− 186 −

No

Yes

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

No

Yes

[E04

]

No

Yes

No

Yes

Yes

No

Yes

No

No

Yes

No

Yes

[E06

]

Sub

-cod

e: N

o. o

f ind

oor

units

whi

ch r

ecei

ved

sign

als

norm

ally

esuaC

edoc kcehC

Che

ck c

ode

nam

eesua

Cedoc kceh

CC

heck

cod

e na

me

Dec

reas

ed n

umbe

r of

indo

or u

nits

Indo

or/O

utdo

or c

omm

unic

atio

n ci

rcui

t err

or

(Det

ecte

d at

indo

or s

ide)

1. C

omm

unic

atio

n lin

es (

U1,

U2)

con

nect

ion

erro

r be

twee

n in

door

and

out

door

2. C

omm

unic

atio

n co

nnec

tor's

con

nect

ion

erro

r on

in

door

uni

t, er

ror

on P

.C. b

oard

3. C

omm

unic

atio

n co

nnec

tor's

con

nect

ion

erro

r on

ou

tdoo

r un

it, e

rror

on

I/F b

oard

4. P

ower

sup

ply

of in

door

uni

t (Is

pow

er tu

rned

on?

)

1. P

ower

of o

utdo

or u

nit w

as fi

rstly

turn

ed o

n.2.

Con

nect

ion

erro

r of

com

mun

icat

ion

line

betw

een

indo

or a

nd o

utdo

or3.

Ter

min

ator

resi

stor

set

up e

rror

on

com

mun

icat

ion

betw

een

indo

or a

nd o

utdo

or4.

Add

ress

set

up e

rror

Is th

ere

no

mis

wiri

ng/d

isco

nnec

tion

on c

omm

unic

atio

n lin

e be

twee

n in

door

and

ou

tdoo

r?

Was

pow

er tu

rned

on

in o

rder

of i

ndoo

r un

it o

utdo

or u

nit?

Is c

onne

ctio

n(U

1/U

2 te

rmin

als)

of

indo

or/o

utdo

or in

ter-

unit

wire

nor

mal

?

Is c

onne

ctor

conn

ectio

n fr

om U

1/U

2 te

rmin

als

of in

door

/out

door

in

ter-

unit

wire

norm

al?

Is th

e te

rmin

ator

resi

stor

se

tup

of o

utdo

or u

nit

norm

al?

Is p

ower

app

lied

to fu

se

(F03

) on

indo

or P

.C.

boar

d?

Is a

ddre

ss s

etup

cor

rect

?

Is th

ere

no n

oise

, etc

?

Is c

onne

ctio

nof

CN

40 c

onne

ctor

on

indo

or P

.C. b

oard

no

rmal

?

Is c

onne

ctio

n of

CN

01

conn

ecto

r on

out

door

I/F

P.

C. b

oard

nor

mal

?

Is p

ower

of i

ndoo

r un

it tu

rned

on?

Did

a p

ower

failu

re

occu

r?

Is th

ere

no n

oise

, etc

?

Cor

rect

com

mun

icat

ion

line.

Turn

on

pow

er a

gain

in o

rder

of

indo

or u

nit

out

door

uni

t.

Cor

rect

inte

r-un

it w

ire.

Cor

rect

con

nect

or c

onne

ctio

n.

Cor

rect

the

term

inat

or re

sist

or

set

up.

Set

up

addr

ess

agai

n.

Che

ck n

oise

, etc

, and

el

imin

ate

it if

any.

Che

ck c

onne

ctio

n of

inte

r-un

it w

ire b

etw

een

indo

or a

nd o

utdo

or

is c

orre

ct, a

nd th

en c

onne

ct

com

mun

icat

ion

line

conn

ecto

r on

in

door

P.C

. boa

rd (

CN

40)

to

CN

44 (

EM

G).

Cor

rect

wiri

ng o

r co

nnec

tor.

Turn

on

pow

er o

f ind

oor

unit.

Cle

ar th

e ch

eck

code

.

Che

ck n

oise

, etc

, and

elim

inat

e it

if an

y.

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

(NO

TE

)1.

Whe

n si

gnal

is n

ot s

ent f

or a

cer

tain

per

iod

from

the

indo

or u

nit w

hich

has

us

ed to

sen

d si

gnal

s no

rmal

ly, [

E06

] is

disp

laye

d.

For

det

ails

, ref

er to

“7-

5. T

roub

lesh

ootin

g in

Tes

t Ope

ratio

n”.

− 187 −

Yes

Yes

No

No

No

Yes

[E08

]

Sub

-cod

e: D

uplic

ated

indo

or a

ddre

ss

Yes

No

Yes

No

Yes

No

No

Yes

No

Yes

Yes

No

[E07

]esua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Indo

or/O

utdo

or c

omm

unic

atio

n ci

rcui

t err

or(D

etec

ted

at o

utdo

or s

ide)

Dup

licat

ed in

door

add

ress

es1.

Indo

or/o

utdo

or c

omm

unic

atio

n te

rmin

ator

re

sist

or s

etup

err

or2.

Indo

or/o

utdo

or c

omm

unic

atio

n co

nnec

tion

erro

r

Indo

or a

ddre

sses

are

dup

licat

ed.

Is s

etup

of

term

inat

or re

sist

or o

f ou

tdoo

r un

it no

rmal

?

Is w

ire c

onne

ctio

n to

co

mm

unic

atio

n lin

e no

rmal

?

Is n

ot c

omm

unic

atio

n lin

e co

nnec

ted

to th

e di

ffere

nt o

utdo

or

unit?

Is in

door

uni

t qua

ntity

co

nnec

ted

to o

utdo

or

unit

corr

ect?

Is in

ter-

unit

wire

(U1,

U2)

bet

wee

n in

door

an

d ou

tdoo

r sh

ort-

circ

uite

d?

Is c

onne

ctio

n of

inte

r-un

it w

ire b

etw

een

indo

or a

nd o

utdo

or

corr

ect?

Is th

ere

no e

rror

on

pow

er w

ire to

out

door

un

it?

Is th

ere

nois

e so

urce

?Is

F40

0 (f

use)

on

I/F P

.C.

boar

d op

ened

?

Cor

rect

set

up o

f ter

min

ator

resi

stor

Cor

rect

wire

con

nect

ion.

Cor

rect

com

mun

icat

ion

line.

Set

up

indo

or a

ddre

ss a

gain

.

Cor

rect

com

mun

icat

ion

line.

Cor

rect

pow

er w

ire.

Turn

on

pow

er to

sta

rt o

pera

tion.

Elim

inat

e no

ise.

Out

door

I/F

P.C

. boa

rd fa

ilure

Rep

lace

I/F P

.C. b

oard

failu

reH

owev

er a

n em

erge

nt o

pera

tion

is

avai

labl

e by

inse

rtin

g co

nnec

tor

to

be c

onne

cted

to C

N01

to C

N33

.

* C

heck

con

duct

ion

with

test

er.

Cor

rect

sho

rt-c

ircui

t.

Usi

ng a

wire

d re

mot

e co

ntro

ller

(RB

C-A

MT

32E

), c

heck

the

setu

p C

OD

E N

o.

(DN

cod

e) 1

2, 1

3, a

nd 1

4.W

hen

ther

e is

no

addr

ess

dupl

icat

ion,

che

ck to

the

follo

win

g flo

wch

art.

− 188 −

No

Yes

[E09

]

Yes

Yes

No

No

Yes

No

No

No

Yes

No

Yes

Yes

[E15

]

No

Yes

[E10

]

[E12

]

Sub

-cod

e: 0

1: C

omm

unic

atio

n be

twee

n in

door

and

out

door

02:

Com

mun

icat

ion

betw

een

outd

oor

units

Yes

No

esuaC

edoc kcehC

Che

ck c

ode

nam

eesua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Dup

licat

ed h

eade

r re

mot

e co

ntro

ller

No

corr

espo

ndin

g in

door

uni

t du

ring

auto

mat

ic a

ddre

ssS

etup

of h

eade

r re

mot

e co

ntro

ller

is d

uplic

ated

.

Com

mun

icat

ion

erro

r be

twee

n in

door

MC

Us.

Aut

omat

ic a

ddre

ss s

tart

err

or

Indo

or P

.C. b

oard

err

or.

Are

two

rem

ote

cont

rolle

rs s

et u

p as

two

head

er r

emot

e co

ntro

llers

?

Is c

omm

unic

atio

n lin

e be

twee

n in

door

an

d ou

tdoo

r no

rmal

?

Is c

onne

ctio

n of

C

N40

con

nect

or o

n in

door

P.C

. boa

rd

corr

ect?

Isco

nnec

tion

of C

N01

co

nnec

tor o

n I/F

P.C

. boa

rd

of h

eade

r out

door

uni

t co

rrec

t?

Is th

ere

any

conn

ectio

n er

ror

of p

ower

wire

?

Did

a p

ower

failu

re

occu

r?

Is th

ere

no n

oise

sou

rce?

Set

up

addr

ess

agai

n af

ter

rese

tting

pow

er s

uppl

y.

Is th

ere

any

trou

ble

on

pow

er li

ne?

Are

U1,

U2,

U3,

and

U

4 co

nnec

tors

co

nnec

ted?

Set

up

one

cont

rolle

r as

the

head

er a

nd

the

othe

r fo

llow

er.

(Rem

ote

cont

rolle

r ad

dres

s co

nnec

tor)

Cor

rect

com

mun

icat

ion

line.

Cor

rect

con

nect

ion

of

conn

ecto

r.

Cor

rect

con

nect

ion

of

conn

ecto

r.

Cor

rect

pow

er w

ire.

Set

up

addr

ess

agai

n af

ter

rese

tting

pow

er s

uppl

y.

Elim

inat

e no

ise.

Che

ck r

emot

e co

ntro

ller

P.C

. boa

rd.

Fai

lure

Rep

lace

Che

ck p

ower

vol

tage

. Im

prov

e th

e lin

e co

nditi

on. E

limin

ate

nois

e, e

tc.

Che

ck in

door

con

trol

P.C

. boa

rd.

Fai

lure

Rep

lace

Dis

conn

ect c

onne

ctor

con

nect

ion

of U

1, U

2, U

3, a

nd U

4.Tu

rn o

n po

wer

of o

utdo

or u

nit

agai

n.

1. S

tart

ing

auto

mat

ic a

ddre

ssin

g of

indo

or u

nits

dur

ing

auto

mat

ic a

ddre

ssin

g in

ano

ther

ref

riger

ant l

ine.

(S

ub-c

ode:

01)

2.

Sta

rtin

g au

tom

atic

add

ress

ing

of o

utdo

or u

nits

du

ring

auto

mat

ic a

ddre

ssin

g of

indo

or u

nits

(Sub

-cod

e: 0

2)

1. C

omm

unic

atio

n lin

e co

nnec

tion

erro

r be

twee

n in

door

and

out

door

2. In

door

pow

er s

yste

m e

rror

3. N

oise

from

sur

roun

ding

dev

ices

4. P

ower

failu

re5.

Indo

or P

.C. b

oard

err

or

Set

up

addr

ess

agai

n.(R

efer

to “

7-4-

3. A

ddre

ss S

etup

P

roce

dure

”.)

− 189 −

Yes

No

Yes

Yes

Yes

No

No

No

[E18

]

No

Yes

No

Yes

No

NG

OK

Yes

No

Yes

[E16

]

Sub

-cod

e: 0

0 : C

apac

ity o

ver,

01-:

num

ber

of c

onne

cted

uni

ts

esuaC

edoc kcehC

Che

ck c

ode

nam

eesua

Cedoc kceh

CC

heck

cod

e na

me

Num

ber/

capa

city

of c

onne

cted

in

door

uni

ts b

eyon

d th

e lim

it1.

The

re a

re 6

4 or

mor

e co

nnec

ted

indo

or u

nits

.2.

Cap

acity

ove

r of

tota

l con

nect

ed in

door

uni

ts.

3. In

corr

ect s

etup

of i

ndoo

r un

its' h

orse

pow

er

Com

mun

icat

ion

erro

r be

twee

n in

door

hea

der

and

follo

wer

Reg

ular

com

mun

icat

ion

betw

een

indo

or h

eade

r an

d fo

llow

er is

una

vaila

ble.

Is b

acku

pop

erat

ion

of o

utdo

or u

nit

bein

g se

t up?

Are

rem

ote

cont

rolle

r int

er-u

nit w

ires

(A/B

) nor

mal

?

Is th

ere

any

disc

onne

ctio

n of

co

nnec

tor

or w

iring

from

te

rmin

al b

lock

of

indo

or u

nit?

Is g

roup

cont

rol o

pera

tion

exec

uted

?

Are

pow

ers

of a

ll in

door

un

its tu

rned

on?

Che

ck in

door

add

ress

.

Is N

o. o

f con

nect

ed

indo

or u

nits

cor

rect

?

Is s

etup

of i

ndoo

r un

its' H

P c

orre

ct?

Is to

tal c

apac

ityof

con

nect

ed in

door

un

its c

orre

ct?

For a

ser

vice

P.C

. boa

rd, c

heck

ou

tdoo

r HP

set

up.

(Set

up

jum

per 9

, 10,

11,

an

d 12

.)

Indo

or c

apac

ity o

ver

has

been

de

tect

ed d

urin

g th

e ba

ckup

op

erat

ion.

Per

form

set

up o

f no

dete

ctio

n fo

r ca

paci

ty o

ver.

(*1)

Cor

rect

rem

ote

cont

rolle

r in

ter-

unit

wire

.

Cor

rect

con

nect

ion

of

conn

ecto

r.C

heck

circ

uit w

ire.

Che

ck p

ower

con

nect

ion

stat

us o

f ind

oor

unit.

(Tu

rn

on th

e po

wer

aga

in.)

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Cor

rect

indo

or a

ddre

ss.

Exc

essi

ve in

door

uni

ts a

re

conn

ecte

d.C

orre

ct m

isw

iring

.

Cor

rect

HP

set

up.

Set

cap

acity

of c

onne

cted

indo

or

units

with

in e

ach

mod

el

spec

ifica

tion

of o

utdo

or u

nits

.

Che

ck o

utdo

or in

terf

ace

P.C

. boa

rd.

(*1)

To

deac

tivat

e th

e ca

paci

ty-o

ver

dete

ctio

nTu

rn S

W09

Bit

2 on

I/F

P.C

. boa

rd o

f hea

der

outd

oor

unit

to O

N.

(Usu

ally

OF

F)

Set

up

outd

oor

HP

.(R

efer

“13

P.C

. BO

AR

D

EX

CH

AN

GE

PR

OC

ED

UR

ES

”.)

− 190 −

Sub

-cod

e: 0

0: N

o he

ader

uni

t 02:

Tw

o or

mor

e he

ader

uni

ts

No

Yes

Yes

No

[E19

]

[E20

]

Sub

-cod

e: 0

1: C

onne

ctio

n of

an

outd

oor

unit

in a

noth

er li

ne 0

2: C

onne

ctio

n of

an

indo

or u

nit i

n an

othe

r lin

e

No

Yes

No

No

Yes

Yes

Yes

No

No

Yes

No

Yes

[E23

]esua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Hea

der

outd

oor

unit

quan

tity

erro

r1.

Mis

conn

ectio

n of

inte

r-un

it w

ire b

etw

een

indo

or a

nd

outd

oor

2. O

utdo

or I/

F P

.C. b

oard

err

or

Com

mun

icat

ion

sign

al s

endi

ng

erro

r be

twee

n ou

tdoo

r un

its

1.In

ter-

unit

wire

con

nect

ion

erro

r be

twee

n ou

tdoo

r un

its2.

Com

mun

icat

ion

conn

ecto

r co

nnec

tion

erro

r be

twee

n ou

tdoo

r un

its, I

/F P

.C. b

oard

err

or3.

End

term

inal

res

ista

nce

setu

p er

ror

betw

een

outd

oor

units

Uni

t con

nect

ed to

oth

er li

ne

durin

g au

tom

atic

add

ress

Whe

n st

artin

g au

tom

atic

indo

or a

ddre

ss, a

dev

ice

in

anot

her

line

is c

onne

cted

.

Are

not

com

mun

icat

ion

lines

(U

1, U

2) b

etw

een

indo

or

and

outd

oor c

onne

cted

to

mul

tiple

out

door

un

its?

Isco

mm

unic

atio

nlin

e be

twee

n in

door

and

ou

tdoo

r co

nnec

ted

to

one

unit

per

1sy

stem

?

Is c

onne

ctio

nof

CN

03 c

onne

ctor

on

outd

oor

I/F P

.C. b

oard

no

rmal

?

Is n

ot m

ain

pow

er o

f ou

tdoo

r un

it tu

rned

of

f?

Did

pow

er fa

ilure

oc

cur?

Is th

ere

no n

oise

so

urce

, etc

?

Is th

e te

rmin

ator

resis

tor b

etw

een

outd

oor u

nits

turn

ed o

n?(S

W30

Bit

2)

Is th

ere

nom

isw

iring

or d

isco

nnec

tion

on c

omm

unic

atio

n lin

e be

twee

n ou

tdoo

run

its?

Con

nect

com

mun

icat

ion

line

betw

een

indo

or a

nd o

utdo

or

to o

ne u

nit p

er 1

sys

tem

.

Cor

rect

com

mun

icat

ion

line.

Cor

rect

wiri

ng o

r co

nnec

tor.

Turn

on

mai

n po

wer

of

outd

oor

unit.

Tur

n th

e te

rmin

ator

resi

stor

to

ON

.

Cle

ar c

heck

cod

e.

Che

ck a

nd e

limin

ate

nois

e,

etc

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t R

epla

ce

Con

nect

com

mun

icat

ion

line

betw

een

indo

or a

nd o

utdo

or.

Ref

eren

ce)

The

out

door

uni

t con

nect

ed w

ith c

omm

unic

atio

n w

ires

(U1,

U2)

bet

wee

n in

door

and

out

door

is a

utom

atic

ally

rec

ogni

zed

as th

e he

ader

uni

t.C

heck

I/F

boa

rd.

Sep

arat

e th

e co

nnec

tion

betw

een

the

lines

follo

win

g th

e ad

dres

s se

tup

met

hod.

− 191 −

Do

not s

et u

p ou

tdoo

r ad

dres

ses

man

ually

.

[E25

]

No

Yes

No

Yes

No

Yes

No

Yes

[E26

]

Sub

-cod

e: A

ddre

ss o

f the

out

door

uni

t rec

eivi

ng s

igna

l abn

orm

ally

Yes

No

Yes

Yes

No

No

Yes

No

[E31

]

[E28

]

Sub

-cod

e: D

etec

ted

outd

oor

unit

No.

esuaC

edoc kcehC

Che

ck c

ode

nam

eesua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Dup

licat

ed fo

llow

er o

utdo

or

addr

ess

setu

pA

ddre

sses

are

dup

licat

ed b

y m

anua

l set

up o

f out

door

ad

dres

s

Fol

low

er o

utdo

or u

nit e

rror

Err

or h

as o

ccur

red

on a

follo

wer

out

door

uni

t.

Dec

reas

e of

con

nect

ed o

utdo

or

units

1. O

utdo

or u

nit b

acku

p se

tup

2. O

utdo

or p

ower

err

or3.

Com

mun

icat

ion

line

conn

ectio

n er

ror

betw

een

outd

oor

units

4. C

omm

unic

atio

n co

nnec

tor

conn

ectio

n er

ror

5. O

utdo

or I/

F P

.C. b

oard

err

or

IPD

U c

omm

unic

atio

n er

ror

1. C

onne

ctio

n er

ror

of c

omm

unic

atio

n lin

e be

twee

n IP

DU

and

I/F

P.C

. boa

rd2.

I/F

P.C

. boa

rd e

rror

3. IP

DU

P.C

. boa

rd e

rror

4. E

xter

nal n

oise

Dur

ing

setu

p of

out

door

un

it ba

ckup

?

Isco

mm

unic

atio

nco

nnec

tor

betw

een

IPD

U

and

I/F P

.C. b

oard

co

nnec

ted?

Is th

ere

no d

isco

nnec

tion

on

com

mun

icat

ion

line

betw

een

IPD

U a

nd I/

F P.

C. b

oard

?

Is th

ere

volta

ge d

efle

ctio

n be

twee

n 4

and

5 pi

n of

C

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t with

test

er:

DC

0 to

5V,

5

pins

GN

D)

Is th

ere

volta

ge d

efle

ctio

n be

twee

n 3

and

5 pi

n of

C

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t with

test

er:

DC

0 to

5V,

5

pins

GN

D)

Is m

ain

pow

er o

f fo

llow

er u

nit t

urne

d on

?

Isco

mm

unic

atio

n lin

e be

twee

n ou

tdoo

r un

its c

onne

cted

no

rmal

ly?

Is c

omm

unic

atio

n co

nnec

tor

(CN

03)

betw

een

follo

wer

out

door

un

its c

onne

cted

?

Cle

ar th

e er

ror,

and

then

sta

rt

oper

atio

n. (

*1)

Cor

rect

con

nect

ion

of c

onne

ctor

.

Rep

lace

com

mun

icat

ion

line.

I/F P

.C. b

oard

err

or

I/F P

.C. b

oard

err

or

Rep

lace

def

ectiv

e IP

DU

P.

C. b

oard

.

Turn

on

the

mai

n po

wer

sup

ply.

Cor

rect

con

nect

ion

of

com

mun

icat

ion

line.

Cor

rect

con

nect

or c

onne

ctio

n.(C

omm

unic

atio

n co

nnec

tor:

CN

03)

(*1)

How

to c

lear

the

erro

rS

et S

W01

/SW

02/S

W03

on

I/F P

.C. b

oard

of h

eade

r un

it to

2/1

6/1,

and

pu

sh S

W04

for

5 se

cond

s or

mor

e.(7

-seg

men

t dis

play

: [E

r.] [C

L])

Che

ck I/

F P

.C. b

oard

.

An

erro

r oc

curr

ed o

n a

follo

wer

uni

t. S

ee th

e ch

eck

code

on

the

7-se

gmen

t dis

play

on

I/F P

.C. b

oard

of t

he fo

llow

er

unit,

and

then

che

ck it

acc

ordi

ng to

dia

gnos

e pr

oced

ure

for

the

chec

k co

de.

(How

to s

peci

fy th

e fo

llow

er o

utdo

or u

nit i

n w

hich

err

or o

ccur

red)

Pus

h S

W04

for

1 se

cond

or

mor

e un

der

cond

ition

that

[E28

] is

disp

laye

d on

the

7-se

gmen

t dis

play

of t

he h

eade

r un

it. T

he fa

n of

the

outd

oor

unit

whi

ch s

topp

ed d

ue to

occ

urre

nce

of e

rror

sta

rts

rota

ting.

Pus

h S

W05

to s

top

the

fan.

In th

e ca

se th

at A

ll IP

DU

s (A

3- IP

DU

s an

d fa

n IP

DU

s) d

o no

t ret

urn

resp

onse

. *

Two

A3-

IPD

Us

(NO

. 1 a

nd 2

) exi

st in

all

mod

els.

From

8 to

16

HP

mod

els,

one

Fan

-IPD

U e

xist

s.

From

18

to 2

2 H

P m

odel

s, tw

o Fa

n-IP

DU

s ex

ist.

Sub

-cod

e

Circ

le (O

): Fa

ulty

IPD

U

No

Res

et p

ower

sup

ply

and

reac

tivat

e.

Yes

I/F b

oard

err

or --

> R

epla

ce

Was

pow

ersu

pply

corre

ctly

rese

t?(P

ower

sup

ply

OFF

for

60 s

econ

ds o

r mor

e)

Sub

-cod

e : 8

0C

omm

unic

atio

n er

ror

betw

een

MC

U a

nd M

CU

12

12

12

12

01

10

02

11

03

12

08

13

09

18

0A

19

0B

1A

1B

A3-IPDU

A3-IPDU

Fan-IPDU

Fan-IPDU

− 192 −

Yes

No

Yes

No

[F03

]

Yes

No

Yes

No

[F01

]

Yes

No

Yes

No

[F02

]

[F04

]

[F05

]

esuaC

edoc kcehC

Che

ck c

ode

nam

eesua

Cedoc kceh

CC

heck

cod

e na

me

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Indo

or T

CJ

sens

or e

rror

TC

J se

nsor

Ope

n/S

hort

Indo

or T

C1

sens

or e

rror

TC

1 se

nsor

Ope

n/S

hort

TD

1 se

nsor

err

orT

D1

sens

or O

pen/

Sho

rt

TD

2 se

nsor

err

orT

D2

sens

or O

pen/

Sho

rt

[F06

]edoc kceh

CC

heck

cod

e na

me

TE

1,TE

2 se

nsor

err

or

Cau

se

TE

1,TE

2 se

nsor

Ope

n/S

hort

Indo

or T

C2

sens

or e

rror

TC

2 se

nsor

Ope

n/S

hort

Is T

CJ

se

nsor

con

nect

or

(CN

102:

Red

) on

indo

or

P.C

. boa

rd n

orm

ally

co

nnec

ted?

Is T

C1

se

nsor

con

nect

or(C

N10

0: B

row

n) o

n in

door

P.

C. b

oard

nor

mal

ly

conn

ecte

d?

Are

cha

ract

eris

tics

of T

CJ

sens

or r

esis

tanc

e va

lue

norm

al?

Are

cha

ract

eris

tics

of T

C1

sens

or r

esis

tanc

e va

lue

norm

al?

Is T

C2

se

nsor

con

nect

or

(CN

101:

Bla

ck)

on in

door

P.

C. b

oard

nor

mal

ly

conn

ecte

d?

Are

cha

ract

eris

tics

of

TC

2 se

nsor

res

ista

nce

valu

e no

rmal

?

Cor

rect

con

nect

ion

of

conn

ecto

r.C

orre

ct c

onne

ctio

n of

co

nnec

tor.

Rep

lace

TC

1 se

nsor

.R

epla

ce T

CJ

sens

or.

Cor

rect

con

nect

ion

of

conn

ecto

r.

Rep

lace

TC

2 se

nsor

.

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

Che

ck in

door

mai

n P.

C. b

oard

.D

efec

t R

epla

ce

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

* S

ee “

Indo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.

* S

ee “

Indo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.

* See

“In

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TD

1 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of

conn

ecto

r (T

D1

sens

or: C

N50

2, W

hite

) and

cha

ract

eris

tics

of s

enso

r res

ista

nce

valu

e. (S

ee “O

utdo

or u

nit

tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TD

2 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of

conn

ecto

r (T

D2

sens

or: C

N50

3, P

ink)

and

cha

ract

eris

tics

of s

enso

r re

sist

ance

val

ue. (

See

“O

utdo

or u

nit

tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TE

1 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of

conn

ecto

r (T

E1

sens

or: C

N52

0,G

reen

, TE

2 se

nsor

: C

N52

1, R

ed) a

nd c

hara

cter

istic

s of

sen

sor r

esis

tanc

e va

lue.

(See

“Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

− 193 −

Yes

Out

door

I/F

P.C

. boa

rd

TE

1 se

nsor

: C

N52

0, G

reen

T

L1 s

enso

r : C

N52

3, W

hite

No

No

Yes

No

Yes

[F15

][F

08]

[F10

]

[F12

]

[F07

][F

13]

Sub

-cod

e: 0

1: C

ompr

esso

r 1,

02:

Com

pres

sor

2

edoc kcehC

esuaC

edoc kcehC

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

edoc kcehC

edoc kcehC

Che

ck c

ode

nam

eC

heck

cod

e na

me

TL1

,TL2

,TL3

sen

sor

erro

r

Che

ck c

ode

nam

e O

utdo

or te

mp

sens

or m

isw

iring

(T

E1,

TL1

)

Cau

se

TL1

,TL2

,TL3

sen

sor

Ope

n/S

hort

TO

sen

sor

erro

rT

O s

enso

r O

pen/

Sho

rt

Che

ck c

ode

nam

e

Indo

or T

A/T

SA

sen

sor

erro

rTA

sen

sor

Ope

n/S

hort

Che

ck c

ode

nam

e

TS

1,TS

3 se

nsor

err

or

Cau

se

TS

1,TS

3 se

nsor

Ope

n/S

hort

TH

sen

sor

erro

r

Cau

se

IPM

bui

lt-in

sen

sor

erro

r in

A3-

IPD

U

Thi

s er

ror

code

mea

ns IP

M b

uilt-

in te

mpe

ratu

re s

enso

r er

ror.

If s

enso

r is

nor

mal

, rep

lace

IPD

U P

.C. b

oard

.

1. M

isin

stal

latio

n an

d m

isco

nnec

tion

of T

E1

sens

or

and

TL1

sen

sor

2. R

esis

tanc

e ch

arac

teris

tics

erro

r of

TE

1 se

nsor

and

T

L1 s

enso

r3.

Out

door

P.C

. boa

rd (

I/F)

erro

r

Are

inst

alle

d po

sitio

ns

of T

E1

sens

or a

nd T

L1

sens

or c

orre

ct?

Are

con

nect

ion

of T

E1

sens

or c

onne

ctor

an

d T

L1 s

enso

r con

nect

or

norm

al?

Are

res

ista

nce

char

acte

ristic

s of

TL1

se

nsor

and

TE

1 se

nsor

no

rmal

?

Cor

rect

inst

alle

d po

sitio

ns o

f T

E1

sens

or a

nd T

L1 s

enso

r.

Cor

rect

con

nect

ion

of

conn

ecto

rs.

Cor

rect

con

nect

ion

of

conn

ecto

rs.

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t R

epla

ce

TE

1 se

nsor

: Out

door

hea

t exc

hang

er te

mp

sens

orT

L1 s

enso

r: T

emp

sens

or b

etw

een

liqui

d ta

nk o

f out

door

PM

V

* See

“O

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TL1

,TL2

,TL3

sen

sor.

Che

ck d

isco

nnec

tion

of c

ircui

t for

co

nnec

tion

of c

onne

ctor

(T

L1 s

enso

r: C

N52

3WH

I, TL

2se

nsor

: C

N52

4 G

RY

, TL3

sen

sor:

CN

902

PN

K)

and

char

acte

ristic

s of

sen

sor

resi

stan

ce v

alue

. (S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

S

enso

r C

hara

cter

istic

s”.)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TO

sen

sor.

Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of

conn

ecto

r (T

O s

enso

r: C

N50

7, Y

ello

w) a

nd c

hara

cter

istic

s of

sen

sor r

esis

tanc

e va

lue.

(See

“Out

door

uni

t te

mpe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TA

sen

sor.

Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of

conn

ecto

r (T

A /T

SA

sen

sor:

CN

104,

Yel

low

) an

d ch

arac

teris

tics

of s

enso

r re

sist

ance

val

ue. (

See

“In

door

uni

t te

mpe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.)

If se

nsor

is n

orm

al, r

epla

ce in

door

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TS

1,TS

3 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

of c

onne

ctor

(TS

1 se

nsor

: CN

505

WH

I, TS

3 se

nsor

: CN

903

PU

R) a

nd c

hara

cter

istic

s of

sen

sor r

esis

tanc

e va

lue.

(S

ee “O

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Sub

-cod

e: 0

1:TL

1, 0

2;TL

2, 0

3;TL

3

[F09

]

Che

ck c

ode

Che

ck c

ode

nam

e

TG1,

TG

2 se

nsor

err

or

Cau

se

TG

1, T

G2

sens

or O

pen/

Sho

rt

Sub

-cod

e: 0

1:TS

1, 0

3:TS

3

Sub

-cod

e: 0

1: T

G1,

02:

TG

2

This

err

or c

ode

mea

ns d

etec

tion

of O

pen/

Sho

rt of

TG

1, T

G2

sens

or.

Che

ck d

isco

nnec

tion

of c

ircui

t for

co

nnec

tion

of c

onne

ctor

(TG

1 se

nsor

: CN

525

BLU

, TG

2 se

nsor

: CN

526

WH

I) an

d ch

arac

teris

tics

of

sens

or re

sist

ance

val

ue.

(See

"Out

door

uni

t tem

pera

ture

sen

sor c

hara

cter

istic

s" o

n "8

-10.

Sen

sor

Cha

ract

eris

tics"

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

F.C

. boa

rd.

− 194 −

Yes

No

No

Yes

No

Yes

[F16

]esua

Cedoc kceh

CC

heck

cod

e na

me

Out

door

pre

ssur

e se

nsor

m

isw

iring

(P

d, P

s)1.

Hig

h-pr

essu

re P

d se

nsor

and

low

pre

ssur

e se

nsor

P

s ar

e ex

chan

ged.

2. O

utpu

t vol

tage

of e

ach

sens

or is

zer

o.

Are

con

nect

ion

of

Pd

sens

or a

nd P

s se

nsor

con

nect

ors

corr

ect?

Are

out

put

volta

ge c

hara

cter

istic

s of

Pd

sens

or a

nd P

s se

nsor

nor

mal

?

Are

Pd/

Ps

outp

ut v

alue

s P

d>P

s du

ring

com

pres

sor

oper

atio

n?

Cor

rect

con

nect

ion

of c

onne

ctor

s.P

d se

nsor

: CN

501,

Red

Ps

sens

or: C

N50

0, W

hite

Sen

sor

erro

r R

epla

ce

Che

ck c

ompr

esso

r.

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t R

epla

ce

(1)

Pre

ssur

e (C

heck

join

t) b

y pr

essu

re g

auge

(2)

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay(3

) O

utpu

t vol

tage

of I

/F P

.C. b

oard

If (1

) an

d (2

), (

3) a

re d

iffer

ent,

an e

rror

of p

ress

ure

sens

or it

self

is c

onsi

dere

d.If

(2)

and

(3)

are

diffe

rent

, che

ck in

terf

ace

P.C

. boa

rd.

Val

ue c

an b

e co

nfirm

ed b

y 7-

segm

ent

disp

lay

func

tion

on o

utdo

or I/

F P

.C. b

oard

.

Pd

SW

01/0

2/03

=1/

1/2

Ps

SW

01/0

2/03

=1/

2/2

Yes

No

Yes

No

[F17

]C

heck

cod

eC

heck

cod

e na

me

Indo

or T

OA

sen

sor

erro

r

Cau

se

TOA

sen

sor

Ope

n/S

hort

Is T

OA

sens

or c

onne

ctor

on

indo

orP.

C. b

oard

nor

mal

lyco

nnec

ted?

Are

cha

ract

eris

tics

of T

OA

sen

sor

resi

stan

ceva

lue

norm

al?

Cor

rect

con

nect

ion

ofco

nnec

tor.

Rep

lace

T O

A s

enso

r.

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

* See

"In

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "

8-10

. Sen

sor

Cha

ract

eris

tics"

.

Yes

Yes

No

No

[F18

]C

heck

cod

eC

heck

cod

e na

me

Indo

or T

RA

sen

sor

erro

r

Cau

se

TR

A s

enso

r O

pen/

Sho

rt

sens

or c

onne

ctor

on

indo

orP.

C. b

oard

nor

mal

lyco

nnec

ted?

Is T

RA

Are

cha

ract

eris

tics

ofT

RA

sen

sor

resi

stan

ceva

lue

norm

al?

Cor

rect

con

nect

ion

ofco

nnec

tor.

Rep

lace

TR

A

se

nsor

.

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

* See

"In

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "

8-10

. Sen

sor

Cha

ract

eris

tics"

.

Yes

Yes

Yes

No

No

Yes

No

[F23

]

No

Con

nect

or: C

N50

0, W

hite

Che

ck c

ode

Che

ck c

ode

nam

e

Ps

sens

or e

rror

Cau

se

Out

put v

olta

ge e

rror

of P

s se

nsor

Is c

onne

ctio

n of

Ps

sens

or c

onne

ctor

co

rrec

t?

Are

out

put

volta

ge c

hara

cter

istic

s of

Ps

sens

orno

rmal

?

Is th

ere

no le

akag

e fr

om S

V4

valv

e?

Is n

otre

frige

rant

byp

asse

d fro

m

disc

harg

e to

suc

tion

of4-

way

val

ve?

Cor

rect

con

nect

ion

of

conn

ecto

r.

Sen

sor

erro

r R

epla

ce

Che

ck c

ompr

esso

r.

Che

ck 4

-way

val

ve.

Rep

lace

SV

4 va

lve.

(1)

Pre

ssur

e (C

heck

join

t) b

y pr

essu

re g

auge

(2)

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay(3

) O

utpu

t vol

tage

of I

/F P

.C. b

oard

If (1

) an

d (2

), (

3) a

re d

iffer

ent,

an e

rror

of p

ress

ure

sens

or it

self

is c

onsi

dere

d.If

(2)

and

(3)

are

diffe

rent

, che

ck in

terf

ace

P.C

. boa

rd.

− 195 −

[F29

]

(Pow

er O

N)

(Rep

etiti

on)

(App

rox.

3 m

inut

es)

(App

rox.

1 m

inut

e)

Yes

No

[F31

]

esuaC

edoc kcehC

Che

ck c

ode

nam

e

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Indo

or o

ther

err

orIn

door

P.C

. boa

rd e

rror

Thi

s er

ror

is d

etec

ted

durin

g op

erat

ion

of a

ir co

nditi

oner

of I

C10

non

-vol

atile

mem

ory

(EE

PR

OM

) on

in

door

uni

t P.C

.boa

rd. R

epla

ce s

ervi

ce P

.C. b

oard

.

* If

EE

PR

OM

was

not

inse

rted

whe

n po

wer

was

turn

ed o

n or

it is

abs

olut

ely

impo

ssib

le to

rea

d/w

rite

EE

PR

OM

dat

a, th

e au

tom

atic

add

ress

mod

e is

rep

eate

d.

[SE

T D

ATA

] is

dis

play

ed

on r

emot

e co

ntro

ller.

[SE

T D

ATA

] di

sapp

ears

.LE

D (

D02

) 1H

z fla

shes

for

appr

ox.

10 s

econ

ds o

n in

door

uni

t P.C

. bo

ard.

Reb

oot (

Res

et)

Out

door

EE

PR

OM

err

or1.

Out

door

uni

t pow

er e

rror

(V

olta

ge, n

oise

, etc

.)2.

Out

door

I/F

P.C

. boa

rd e

rror

Is th

ere

any

trou

ble

of o

utdo

or u

nit

pow

er s

uppl

y?

Che

ck p

ower

vol

tage

and

line

.C

orre

ct p

ower

line

.C

heck

ext

erna

l noi

se, e

tc.

Che

ck I/

F P

.C. b

oard

.

[F24

]C

heck

cod

eC

heck

cod

e na

me

Pd

sens

or e

rror

Cau

se

Out

put v

olta

ge e

rror

of P

d se

nsor

It is

out

put v

olta

ge e

rror

of P

d se

nsor

. Che

ck d

isco

nnec

tion

of c

onne

ctio

n of

con

nect

or (

Pd

sens

or: C

N50

1, r

ed)

circ

uit a

nd o

utpu

t vol

tage

of s

enso

r.If

the

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

− 196 −

Yes

No

Yes

No

*1: 3

80-4

15V

± 1

0%

Yes

No

No

No

Yes

No

Yes

No

Yes

Yes

[H02

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Com

pres

sor

erro

r (L

ock)

MG

-CT

T: M

agne

t con

tact

or

1. O

utdo

or u

nit p

ower

line

err

or2.

Com

pres

sor

circ

uit s

yste

m e

rror

3. C

ompr

esso

r er

ror

4. R

efrig

eran

t sta

gnat

ion

in c

ompr

esso

r sh

ell

5. A

3-IP

DU

P.C

. boa

rd e

rror

6. M

G-C

TT

err

or

Sub

-cod

e:01

: Com

pres

sor

1,02

: Com

pres

sor

2

Is p

ower

vol

tage

of

out

door

uni

t no

rmal

? *1

Doe

s vo

ltage

dro

p oc

cur

whe

n ot

her

com

pres

sor

star

ts?

Is w

iring

or c

onne

ctor

co

nnec

tion

on A

3-IP

DU

P.C

. boa

rd

norm

al?

Is M

G-C

TT

nor

mal

? *2

Is th

ere

nore

frig

eran

t sta

gnat

ion

in c

ompr

esso

r sh

ell?

Is c

ompr

esso

r no

rmal

? *3

Is c

ase

heat

er o

utpu

t no

rmal

?

Cor

rect

pow

er li

ne.

Cor

rect

con

nect

or c

onne

ctio

n or

wiri

ng.

Exc

hang

e M

G-C

TT

No

Yes

Abn

orm

al o

verlo

ad?

Cor

rect

cau

se o

f ove

rload

.

Cor

rect

ref

riger

ant s

tagn

atio

n in

com

pres

sor

shel

l.

Che

ck c

ase

heat

er.

Ope

ratio

n st

arts

.

Com

pres

sor

erro

r

Che

ck A

3-IP

DU

P.C

. boa

rd.

*3 C

heck

the

follo

win

g ite

ms

mai

nly.

1. E

xist

ence

of a

bnor

mal

sou

nd a

nd a

bnor

mal

vi

brat

ion

durin

g op

erat

ion

or s

tart

ing

2. A

bnor

mal

ove

rhea

t of c

ase

durin

g op

erat

ion

or

stop

tim

e (N

ever

touc

h w

ith h

ands

.)3.

Cur

rent

of c

ompr

esso

r le

ad d

urin

g op

erat

ion

or

star

ting

time

(No

sudd

en c

hang

e of

cur

rent

?)

2 C

heck

con

nect

ion

wiri

ng

*C

heck

ope

ratio

n of

MG

-CT

T

Che

ck th

e sh

ort c

ircui

t of M

G-C

TT

Yes

No

Yes

No

* 38

0-41

5V ±

10%

Yes

No

Yes

No

Yes

[H01

]

V U

W

Cau

seC

heck

cod

eC

heck

cod

e na

me

Is p

ower

vol

tage

of

out

door

uni

t no

rmal

?

Doe

s vo

ltage

dr

op o

ccur

whe

n ot

her

com

pres

sor

star

ts?

Is w

indi

ngre

sist

ance

bet

wee

nph

ases

of c

orre

spon

ding

co

mpr

esso

r no

rmal

? (N

ote

1)

Is n

ot it

an

abno

rmal

ov

erlo

ad?

Is c

onne

ctio

nof

wiri

ng o

r con

nect

ion

of

conn

ecto

r on

A3-

IPD

U P

.C.

boar

d no

rmal

?

Cor

rect

pow

er li

ne.

Cor

rect

con

nect

or c

onne

ctio

n or

wiri

ng.

Com

pres

sor

erro

r (M

otor

bu

rnin

g, e

tc.)

Cor

rect

cau

se o

f ove

rload

.

Che

ck IP

DU

P.C

. boa

rd.

Com

pres

sor

brea

kdow

n R

otor

-st

op p

ower

dis

tribu

tion

has

occu

rred

.

1. O

utdo

or u

nit p

ower

line

err

or2.

Com

pres

sor

circ

uit s

yste

m e

rror

3. C

ompr

esso

r er

ror

4. A

bnor

mal

ove

rload

in o

pera

tion

5. A

3-IP

DU

P.C

. boa

rd e

rror

Sub

-cod

e:01

: Com

pres

sor

1,02

: Com

pres

sor

2

No Ta

ke o

ff le

ad w

ire o

f com

pres

sor.

Che

ck r

esis

tanc

e be

twee

n w

indi

ngs:

1.It

is n

orm

al if

ther

e ar

e 0.

1Ω to

1.0

Ω.

2. C

heck

insu

latio

n be

twee

n ou

tdoo

r ca

bine

t and

term

inal

:It

is n

orm

al if

ther

e ar

e 10

MΩ

or

mor

e.

Not

e 1

Afte

r ch

ecki

ng th

e ou

tput

, whe

n co

nnec

ting

the

com

pres

sor

lead

aga

in to

the

com

pres

sor

term

inal

, che

ck s

urel

y th

ere

is

no d

isto

rtio

n on

the

Fas

ten

rece

ptac

le te

rmin

al.

If it

is lo

osen

ed, c

aulk

it w

ith p

inch

ers,

etc

and

then

con

nect

le

ad to

the

term

inal

firm

ly.

Det

ails

of c

ompr

esso

r po

wer

con

nect

ing

sect

ion

− 197 −

[H07

]esua

Cedoc kceh

CC

heck

cod

e na

me

Oil

leve

l dow

n de

tect

ion

prot

ectio

n1.

Val

ves

of b

alan

ce p

ipes

clo

sed.

(O

n al

l out

door

un

its in

a li

ne)

2. M

isw

iring

or

mis

inst

alla

tion

of T

K1,

TK

2, T

K4,

TK

5 se

nsor

s3.

TK

1, T

K2,

TK

4, T

K5

sens

or e

rror

4. G

as le

ak o

r oi

l lea

k in

a li

ne5.

Ref

riger

ant s

tagn

atio

n of

com

pres

sor

case

6. S

V3A

, 3B

, 3C

, 3D

val

ve e

rror

7. C

logg

ing

of o

il re

turn

circ

uit f

rom

oil

sepa

rato

r8.

Clo

ggin

g of

oil-

equa

tion

circ

uit s

yste

m

Indo

or/o

utdo

or P

MV

err

or (

Cau

se o

f ref

riger

ant s

tagn

atio

n),

disc

harg

e ch

eck

valv

e er

ror,

etc.

(Ref

eren

ce)

Whe

n re

frig

eran

t sta

gnat

es in

com

pres

sor

shel

l, th

e oi

l lev

el s

hort

age

may

be

No

Ope

n ba

lanc

e pi

pe v

alve

s fu

lly, r

eset

pow

er s

uppl

y,

and

star

t ope

ratio

n.

No

Sens

or e

rror

Rep

lace

Spe

cify

gas

leak

pos

ition

and

re

pair

it.(R

echa

rgin

g, re

fill o

il)E

rror

No

stag

natio

nR

epla

ce fa

ulty

par

t.

No

leak

age

or c

logg

ing

Clo

ggin

gR

epla

ce fa

ulty

par

t.Ch

eck

oil le

vel ju

dgm

ent o

f eac

h un

it.Th

e ch

eck

resu

lt is

indi

cate

d on

the

7-se

gmen

t disp

lay

by s

ettin

g [S

W01

/02/

03] t

o [1

/16/

1].

Clo

ggin

gN

oR

epla

ce fa

ulty

par

t.

No

clog

ging

Clo

ggin

gC

lear

cau

se o

f sta

gnat

ion.

Rep

lace

faul

ty p

art.

Are

bala

nce

pipe

val

ves

of a

ll ou

tdoo

r un

its in

sam

e lin

e fu

lly

open

ed?

Yes

Are

TK1,

TK2

, TK

4 an

d TK

5 se

nsor

s of

the

erro

r-det

ecte

d un

it co

rrect

ly co

nnec

ted?

Are

all t

he s

enso

rs

prop

erly

conn

ecte

d?

Yes

Yes

Che

ck g

as le

ak o

f all

outd

oor

units

in th

e sa

me

line

and

chec

k so

aked

oil

in th

em.

No

erro

r

Leak

age

or

clog

ging

Sta

gnat

ion

Corre

ct re

frige

rant

sta

gnat

ion

in c

ompr

esso

r, re

set p

ower

su

pply,

and

sta

rt th

e op

erat

ion.

(*1)

Che

ck le

akag

e of

va

lves

(SV

3A, S

V3C

) and

cl

oggi

ng (S

V3B

).

(*2)

Che

ckcl

oggi

ng o

f oil

retu

rn

circ

uit f

rom

oil

sepa

rato

r. (C

apill

ary

tube

, stra

iner

)C

heck

clo

ggin

g of

S

V3D

val

ve.

No

clog

ging

Are

all

oil l

evel

s co

rrec

t? Yes

Che

ck c

logg

ing

of s

olen

oid

valv

es (S

V3A

, S

V3C

) of a

ll ou

tdoo

r uni

ts

in th

e sa

me

line.

(*3)

Che

ck c

logg

ing

of o

il eq

ualiz

atio

n ci

rcui

t. (*

4)

Are

char

acte

ristic

s of

TK

1, T

K2, T

K4 a

nd T

K5 o

f er

ror-d

etec

ted

unit

norm

al?

Che

ck re

frige

rant

st

agna

tion

in

com

pres

sor.

Cor

rect

mis

wiri

ng a

nd m

isin

stal

latio

n.

TK1:

CN

531,

bla

ckTK

2: C

N53

2, g

reen

TK4:

CN

534,

yel

low

TK5:

CN

535,

red

No *S

ee“O

utdo

orun

itte

mpe

ratu

rese

nsor

ch

arac

teris

tics”

on

“8-1

0. S

enso

r Cha

ract

eris

tics”

.

No

No

No

Yes

Yes

Yes Ye

s

No

No

Yes

No

Yes

(Che

ck w

ith m

isw

iring

che

ck fu

nctio

n of

out

door

uni

t.)

Yes

No

No

Yes

No

Yes

No

Yes

Yes

No

No

Cle

anin

g

Cle

anin

g

[H06

]

Cau

seC

heck

cod

eC

heck

cod

e na

me

Low

-pre

ssur

e pr

otec

tive

oper

atio

n1.

Ser

vice

val

ve c

lose

2. P

s se

nsor

err

or3.

SV

2, S

V4

circ

uit e

rror

4. M

isw

iring

of c

omm

unic

atio

n be

twee

n in

door

and

ou

tdoo

r5.

Indo

or/o

utdo

or fa

n an

d co

nden

ser

erro

r6.

Indo

or/o

utdo

or P

MV

clo

ggin

g7.

Indo

or/o

utdo

or h

eat e

xcha

nger

clo

ggin

g8.

Ref

riger

ant s

hort

age

Are

serv

ice

valv

es o

fga

s an

d liq

uid

pipe

of

outd

oor u

nit f

ully

op

ened

?

Are

char

acte

ristic

s of

lo

w-p

ress

ure

sens

or

norm

al?

Are

SV

2 an

d S

V4

circ

uits

nor

mal

?

Is a

ny in

door

uni

t in

a d

iffer

ent l

ine

conn

ecte

d?

Doe

s in

door

fan

norm

ally

ope

rate

in

coo

ling

seas

on?

Is th

ere

clog

ging

of i

ndoo

r ai

r fil

ter

or h

eat e

xcha

nger

?

Is in

door

PM

V

norm

al?

Is o

utdo

or fa

n no

rmal

ly o

pera

ted

in

heat

ing

seas

on?

Is th

ere

clog

ging

of o

utdo

or h

eat

exch

ange

r?

Is o

utdo

or P

MV

no

rmal

?

Is c

onne

ctor

conn

ectio

n or

coi

l no

rmal

?

Is th

ere

clog

ging

on

who

le v

alve

?

Are

follo

win

g ite

ms

conc

erne

d to

indo

or fa

n m

otor

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Con

dens

er3.

Mot

or4.

Fan

Ope

n se

rvic

e va

lves

fu

lly.

Exc

hang

e lo

w-p

ress

ure

sens

or.

Cor

rect

SV

2 an

d S

V4

circ

uits

.

Cor

rect

wiri

ng.

Rep

air

faul

ty p

arts

.

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Yes

Ref

riger

ant s

horta

ge o

r clo

ggin

g or

pip

e de

form

ed

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Ref

riger

ant s

hort

age,

cl

oggi

ng, p

ipe

defo

rmed

Rep

lace

PM

V b

ody.

Che

ck o

utdo

or I/

F P

.C. b

oard

.F

ailu

re R

epla

ce

In c

oolin

g se

ason

, go

to (

A)

In h

eatin

g se

ason

, go

to (

B)

(A)

Coo

ling

(B)

Hea

ting

No

Che

ck m

isw

iring

, mis

inst

alla

tion

and

conn

ecto

r co

nnec

tion.

No

* 1. P

ress

ure

by p

ress

ure

gaug

e (C

heck

join

t) P

ress

ure

disp

lay

on 7

-seg

men

t dis

play

2. 3. O

utpu

t vol

tage

of I

/F P

.C. b

oard

If 1

and

2, 3

are

diff

eren

t, an

err

or o

f pre

ssur

e se

nsor

err

or is

con

side

red.

If 2

and

3 ar

e di

ffere

nt, c

heck

I/F

P.C

. boa

rd.

Is in

door

fan

syst

em n

orm

al?

Fan

cra

ck•

• F

an c

omin

g-of

f

− 198 −

[H05

]

Yes

Yes

No

No

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Out

door

dis

char

ge te

mpe

ratu

re

sens

or (

TD

1) m

isco

nnec

tion

1. C

omin

g-of

f of T

D1

sens

or2.

Mis

inst

alla

tion

of T

D1,

TD

2 se

nsor

, m

isw

iring

, cha

ract

eris

tics

erro

r of

res

ista

nce

valu

e

Is th

ere

no

mis

wiri

ng o

r m

isin

stal

latio

n on

T

D1/

TD

2 se

nsor

s?

Are

res

ista

nce

char

acte

ristic

s of

TD

1 se

nsor

nor

mal

?

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TD

1: C

N50

2, w

hite

TD

2: C

N50

3, p

ink

No

Yes

Is T

D1

sens

or

inst

alle

d co

rrec

tly?

Cor

rect

inst

alla

tion

of s

enso

r.

Che

ck I/

F P

.C. b

oard

.

Sen

sor

erro

r R

epla

ce th

e se

nsor

.

Yes

No

[H03

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Cur

rent

det

ectiv

e ci

rcui

t sys

tem

er

ror

1. W

iring

or

conn

ecto

r co

nnec

tion

erro

r on

A3-

IPD

U

P.C

. boa

rd2.

A3-

IPD

U P

.C. b

oard

err

or

Sub

-cod

e:01

: Com

pres

sor

1,02

: Com

pres

sor

2

Wiri

ng o

r co

nnec

tor

conn

ectio

n on

IP

DU

P.C

. boa

rd

norm

al?

Cor

rect

con

nect

or c

onne

ctio

n or

wiri

ng.

Che

ck IP

DU

P.C

. boa

rd.

− 199 −

(*2

) C

heck

ing

the

oil r

etur

n ci

rcui

t fro

m o

il se

para

tor

and

clog

ging

in

SV

3D v

alve

a)

Oil

retu

rn c

ircui

t•

Whi

le o

utdo

or u

nit i

s op

erat

ing,

che

ck te

mpe

ratu

re (

seco

ndar

y si

de o

f cap

illar

y) o

n oi

l ret

urn

circ

uit.

((6)

in th

e fig

ure.

) If

tem

pera

ture

is lo

w e

quiv

alen

t to

suct

ion

tem

pera

ture

), a

clo

ggin

g of

str

aine

r of

oil

retu

rn c

ircui

t or

capi

llary

is c

onsi

dere

d. R

epla

ce th

e cl

ogge

d pa

rt.

b)C

logg

ing

chec

k fo

r S

V3D

val

ve•

Whi

le o

utdo

or u

nit i

s op

erat

ed, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pu

sh S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[9],

and

turn

on

SV

3D v

alve

. (7-

segm

ent d

ispl

ay [H

r] [.

.. 3

d])

• If

tem

pera

ture

is lo

w a

t sec

onda

ry s

ide

of th

e va

lve

or it

doe

s no

t cha

nge,

clo

ggin

g of

val

ve, c

apill

ary,

or

str

aine

r is

con

side

red.

((7

) in

the

figur

e.)

Rep

lace

the

clog

ged

part

.

In s

ome

case

s, it

may

be

diffi

cult

to c

heck

the

leak

age

of c

logg

ing

in th

e fo

llow

ing

cond

ition

of r

efrig

eran

t st

agna

tion

in lo

w a

mbi

ent t

empe

ratu

re c

ondi

tion.

In th

is c

ase,

take

a lo

nger

ope

ratin

g tim

e pr

ior

to c

heck

.(C

riter

ion:

Dis

char

ge te

mpe

ratu

re o

f TD

1 an

d T

D2

are

60°C

or

high

er)

(*1)

Che

ckin

g le

akag

e an

d cl

oggi

ng o

n so

leno

id v

alve

sa)

Leak

age

chec

k fo

r S

V3A

val

ve (

For

mul

tiple

out

door

uni

t sys

tem

)•

Turn

off

the

pow

er s

uppl

y, ta

ke o

ff co

nnec

tor

of S

V3A

val

ve, a

nd th

en s

tart

a te

st o

pera

tion

afte

r po

wer

-ON

.•

Che

ck th

e te

mpe

ratu

re c

hang

e at

sec

onda

ry s

ide

of S

V3A

val

ve d

urin

g op

erat

ion

. ((1

) in

the

figur

e.)

If t

empe

ratu

re is

rai

sed,

leak

age

occu

rs in

the

SV

3A v

alve

. Rep

lace

SV

3A v

alve

.

b)Le

akag

e ch

eck

for

SV

3C v

alve

• Tu

rn o

ff th

e po

wer

sup

ply,

take

off

conn

ecto

r of

SV

3C v

alve

, and

then

sta

rt a

test

ope

ratio

n af

ter

pow

er-O

N.

• A

fter

oper

atio

n fo

r se

vera

l min

utes

, che

ck te

mpe

ratu

re a

t sec

onda

ry s

ide

of S

V3C

val

ve. (

(2)

in th

e fig

ure.

) If

tem

pera

ture

is h

igh

(equ

ival

ent t

o di

scha

rge

tem

pera

ture

TD

), le

akag

e oc

curs

in th

e S

V3C

val

ve.

Rep

lace

SV

3C v

alve

.(E

ven

if le

akag

e do

es n

ot o

ccur

in th

e S

V3C

val

ve, t

empe

ratu

re o

f SV

3C v

alve

at s

econ

dary

sid

e ris

es d

urin

g op

erat

ion.

But

the

tem

pera

ture

is lo

wer

than

TD

whe

n th

ere

is n

o le

akag

e.)

c)C

logg

ing

chec

k fo

r S

V3B

val

ve (

For

mul

tiple

out

door

uni

t sys

tem

)•

Whi

le o

utdo

or u

nit i

s op

erat

ed, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pu

sh S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[10]

, and

turn

on

SV

3A, S

V3B

, SV

3C v

alve

s. (

7-se

gmen

t dis

play

[Hr]

[...

3 -]

)•

Whi

le o

utdo

or u

nits

are

ope

ratin

g, c

heck

tem

pera

ture

cha

nge

at s

econ

dary

sid

e of

SV

3B v

alve

. ((4

) in

th

e fig

ure.

) If

tem

pera

ture

doe

s no

t ris

e (e

quiv

alen

t to

suct

ion

tem

pera

ture

), it

is a

clo

ggin

g of

SV

3B v

alve

. R

epla

ce S

V3B

val

ve.

− 200 −

MM

Y-M

AP

0806

∗M

MY

-MA

P10

06∗

MM

Y-M

AP

1206

∗M

MY

-MA

P14

06∗

MM

Y-M

AP

1606

∗M

MY

-MA

P18

06∗

MM

Y-M

AP

2006

∗M

MY

-MA

P22

06∗

(TD

2)

(TK

2)

(TK

1)

(TD

1)

(TK

4)

SV

SV

SV

SV

SV SV

(TK

5)

(SV

3B)

(SV

3A)

(SV

2)

(SV

3D)

(SV

42)

(SV

41)

(SV

3C) O

il se

para

tor

Oil

Hea

der

Hig

h-

pres

sure

sw

itch

Hig

h-

pres

sure

sw

itch

Bal

ance

pip

e S

ervi

ce v

alve

Red

ucer

Com

pres

sor

1 (In

verte

r)

Com

pres

sor

2 (In

verte

r)

SV

(6)

(7)

(2)

(5)

(8)

(1)

(8)

(4)

(*3)

Che

ck fo

r so

leno

id v

alve

of a

ll ou

tdoo

r un

its in

a li

ne (

For

mul

tiple

ou

tdoo

r un

it sy

stem

)a)

Clo

ggin

g ch

eck

for

SV

3A v

alve

• W

hile

out

door

uni

t is

oper

atin

g, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pu

sh S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[6],

and

turn

on

SV

3A v

alve

. (7-

segm

ent d

ispl

ay [H

r] [.

.. 3

A])

• If

tem

pera

ture

is lo

w a

t sec

onda

ry s

ide

of th

e va

lve

or it

doe

s no

t cha

nge,

clo

ggin

g of

val

ve o

r ch

eck

valv

e is

con

side

red.

((1

) in

the

figur

e.)

b)Le

akag

e ch

eck

for

SV

3C v

alve

• W

hile

out

door

uni

t is

oper

atin

g, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pu

sh S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[8],

and

turn

on

SV

3C v

alve

. (7-

segm

ent d

ispl

ay [H

r] [.

.. 3

C])

• If

tem

pera

ture

doe

s no

t cha

nge

(up)

, clo

ggin

g of

val

ve o

r st

rain

er is

con

side

red.

((2

) in

the

figur

e.)

(*4)

a)C

logg

ing

chec

k fo

r oi

l-equ

aliz

atio

n ci

rcui

t•

Driv

e th

e ou

tdoo

r un

it. (

Driv

e al

l com

pres

sors

in th

e un

it.)

• A

fter

driv

ing

for

10 m

inut

es o

r m

ore,

che

ck w

heth

er te

mpe

ratu

re o

f TK

1, T

K2

sens

ors

and

tem

pera

ture

of o

il-eq

ualiz

atio

n ci

rcui

t cap

illar

y ((

8) in

the

figur

e) h

as in

crea

sed.

(Crit

erio

n)T

K1,

TK

2=T

d1, T

d2 te

mpe

ratu

re -

App

rox.

10

to 3

0°C

Oil-

equa

lizat

ion

capi

llary

tube

s sh

ould

be

high

er s

uffic

ient

ly th

an o

utsi

de a

ir te

mpe

ratu

re a

nd s

uctio

n te

mpe

ratu

re.

• If

tem

pera

ture

is lo

w, a

mal

func

tion

on c

heck

val

ves

or c

logg

ing

of c

apill

ary,

str

aine

r or

dis

trib

utor

is

cons

ider

ed. R

epai

r th

e de

fect

ive

part

s.

− 201 −

Circ

uit

TK

1T

K2

TK

4T

K5

Con

nect

orC

N53

1 (B

lack

)C

N53

2 (G

reen

)C

N53

4 (Y

ello

w)

CN

535

(Red

)

[H08

]C

heck

cod

eC

heck

cod

e na

me

Oil

leve

l det

ectiv

e te

mpe

ratu

re

sens

or e

rror

Cau

se

TK

1, T

K2,

TK

4, T

K5

sens

or

Ope

n/S

hort

Sub

-cod

e:01

: TK

1 se

nsor

err

or 0

2: T

K2

sens

or e

rror

04: T

K4

sens

or e

rror

05:

TK

5 se

nsor

err

or

The

det

ecte

d er

ror

is a

n oi

l lev

el d

etec

tive

tem

pera

ture

sen

sor

erro

r. C

heck

dis

conn

ectio

n of

the

wiri

ng a

nd r

esis

tanc

e va

lue

of th

e se

nsor

.If

the

sens

ors

are

norm

al, r

epla

ce th

e ou

tdoo

r I/F

P.C

. boa

rd.

[H15

]

Yes

Yes

No

No

Cau

seC

heck

cod

eC

heck

cod

e na

me

Out

door

dis

char

ge te

mpe

ratu

re

sens

or (

TD

2) m

isco

nnec

tion

1. C

omin

g-of

f of T

D2

sens

or2.

Mis

inst

alla

tion

of T

D1

or T

D2

sens

or, m

isw

iring

, ch

arac

teris

tics

erro

r of

res

ista

nce

valu

e

Is th

ere

no

mis

wiri

ng o

r m

isin

stal

latio

n on

T

D1/

TD

2 se

nsor

s?

Are

res

ista

nce

char

acte

ristic

s of

TD

2 se

nsor

nor

mal

?

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TD

1: C

N50

2, w

hite

TD

2: C

N50

3, p

ink

No

Yes

Is T

D2

sens

or

inst

alle

d co

rrec

tly?

Cor

rect

inst

alla

tion

of s

enso

r.

Che

ck I/

F P

.C. b

oard

.

Sen

sor

erro

r R

epla

ce th

e se

nsor

.

No

Yes

Yes

No

erro

r

No

Err

or

No

Yes

[H16

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Oil

leve

l det

ectio

n ci

rcui

t err

orT

K1

tem

pera

ture

det

ectiv

e ci

rcui

ter

ror

(Sub

-cod

e: 0

1)

1. C

omin

g-of

f of T

K1

sens

or, m

isw

iring

, ch

arac

teris

tics

erro

r of

res

ista

nce

valu

e2.

Oil-

equa

lizat

ion

circ

uit e

rror

(C

heck

val

ve,

capi

llary

clo

ggin

g, s

trai

ner

clog

ging

)3.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K1

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

K1/

TK

2/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

1 se

nsor

res

ista

nce

valu

e no

rmal

?

Cor

rect

inst

alla

tion

of s

enso

r.

Sen

sor

erro

r

Rep

lace

clo

ggin

g pa

rt.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TD

1: C

N50

2 w

hite

TD

2: C

N50

3 pi

nk

TK

1: C

N53

1, b

lack

TK

2: C

N53

2, g

reen

T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

1 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [12

] [2]

.

Che

ck T

K1

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

1 ha

s op

erat

ed.

If lo

w te

mpe

ratu

re c

ontin

ues

(app

roxi

mat

ely

outs

ide

tem

p) o

r te

mpe

ratu

re h

aslit

tle c

hang

e, a

clo

ggin

g of

str

aine

r of

oil-

equa

lizat

ion

circ

uit,

clog

ging

of

capi

llary

tube

, or

mal

func

tion

of c

heck

val

ve is

con

side

red.

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"8-

10. S

enso

r C

hara

cter

istic

s".

↓↓

Com

p. 1

(inve

rter

)S

trai

ner C

heck

va

lve

Cap

illar

y tu

be

(TK

1)

− 202 −

No

Yes

Yes

Yes

No

No

No

erro

r

Err

or

[H16

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Oil

leve

l det

ectio

n ci

rcui

t err

orT

K2

tem

pera

ture

det

ectiv

e ci

rcui

ter

ror

(Sub

-cod

e: 0

2)

1. C

omin

g-of

f of T

K2

sens

or, m

isw

iring

, ch

arac

teris

tics

erro

r of

res

ista

nce

valu

e2.

Oil-

equa

lizat

ion

circ

uit e

rror

(C

heck

val

ve,

capi

llary

clo

ggin

g, s

trai

ner

clog

ging

)3.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K2

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

K1/

TK

2/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

2se

nsor

resi

stan

ceva

lue

norm

al?

Cor

rect

inst

alla

tion

ofse

nsor

.

Sen

sor

erro

r

Rep

lace

clo

ggin

g pa

rt.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TD

1: C

N50

2, w

hite

TD

2: C

N50

3, p

ink

TK

1: C

N53

1, b

lack

TK

2: C

N53

2, g

reen

TK

4: C

N53

4, y

ello

wT

K5:

CN

535,

red

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

2 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [13

] [2]

.

Che

ck T

K2

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

2 ha

s op

erat

ed.

If lo

w te

mpe

ratu

re c

ontin

ues

(app

roxi

mat

ely

outs

ide

tem

p) o

r te

mpe

ratu

re h

aslit

tle c

hang

e, a

clo

ggin

g of

str

aine

r of

oil-

equa

lizat

ion

circ

uit,

clog

ging

of

capi

llary

tube

, or

mal

func

tion

of c

heck

val

ve is

con

side

red.

Afte

r re

setti

ngth

e po

wer

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"8-1

0. S

enso

r C

hara

cter

istic

s".

↓ ↓

(TK

2)

Cap

illar

y tu

be

Str

aine

rC

omp.

2(in

vert

er)

Che

ck

valv

e

Yes

Yes

Yes

No C

heck

the

clog

ging

of S

V3E

val

ve.

No

No

No

erro

r

Err

or

[H16

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

TK

4 te

mpe

ratu

re d

etec

tive

circ

uit

erro

r(S

ub-c

ode:

04)

1. C

omin

g-of

f of T

K4

sens

or, m

isw

iring

, ch

arac

teris

tics

erro

r of

res

ista

nce

valu

e2.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K4

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

K1/

TK

2/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

4 se

nsor

res

ista

nce

valu

e no

rmal

?

Cor

rect

inst

alla

tion

of s

enso

rr..

Sen

sor

erro

r →

repl

ace

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TD

1: C

N50

2, w

hite

, TD

2: C

N50

3, p

ink

TK

1: C

N53

1, b

lack

, TK

2: C

N53

2, g

reen

T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

4 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [15

] [2]

.

Che

ck T

K4

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

has

oper

ated

.If

low

tem

pera

ture

con

tinue

s (a

ppro

xim

atel

y ou

tsid

e te

mp)

or

tem

pera

ture

has

little

cha

nge,

clo

ggin

g of

the

para

llel c

apill

ary

tube

is c

onsi

dere

d.

Afte

r re

setti

ngth

e po

wer

*

See

"O

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics"

on

"8-1

0. S

enso

r C

hara

cter

istic

s".

↓ ↓(SV3C)

SV

(TK

4)

Cap

illar

y tu

be

Rep

lace

clo

ggin

g pa

rt (

capi

llary

).

Str

aine

r

− 203 −

No

Yes

No

Yes

NoYe

s

[H16

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

TK5

tem

pera

ture

det

ectiv

e ci

rcui

t err

or(S

ub-c

ode:

05)

1. C

omin

g-of

f of T

K5

sens

or, m

isw

iring

, ch

arac

teris

tics

erro

r of

res

ista

nce

valu

e2.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K4

sens

or

deta

ched

?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

on

TK

1/T

K2/

TK

4/T

K5

sens

ors?

Are

char

acte

ristic

s of

TK

4 se

nsor

res

ista

nce

valu

e no

rmal

?

Cor

rect

inst

alla

tion

of s

enso

r.

Sen

sor

erro

r r

epla

ce

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.

TK

1: C

N53

1, b

lack

TK

2: C

N53

2, g

reen

TK

4: C

N53

4, y

ello

wT

K5:

CN

535,

red

*See

“O

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics”

on

“8-1

0. S

enso

r C

hara

cter

istic

s”.

− 204 −

[L06

]

Sub

-cod

e: a

mou

nt o

f ind

oor

units

with

prio

rity

[L07

]

Yes

Yes

No

No

Che

ck c

ode

Che

ck c

ode

nam

e

Che

ck c

ode

Dup

licat

ed in

door

uni

ts w

ith p

riorit

y(D

ispl

ayed

on

the

indo

or u

nits

oth

er th

an

ones

with

prio

rity

and

on th

e ou

tdoo

r uni

t)

Cau

se

Two

or m

ore

indo

or u

nits

with

prio

rity

are

dupl

icat

ed.

Cau

se

A g

roup

line

is c

onne

cted

to a

n in

divi

dual

indo

or u

nit.

Whe

n pr

iorit

y is

giv

en to

two

or m

ore

indo

or u

nits

, thi

s ch

eck

code

is d

ispl

ayed

on

indo

or u

nits

oth

er th

an th

e un

its

set a

s pr

ior

ones

and

the

outd

oor

unit.

• A

s on

ly o

ne in

door

uni

t with

prio

rity

is v

alid

, cha

nge

the

setu

p.

Che

ck c

ode

nam

e

A g

roup

line

exi

sts

in a

n in

divi

dual

in

door

uni

t

Is th

ere

grou

p ca

blin

g?

The

re is

indi

vidu

al in

door

un

it.

Che

ck th

e ad

dres

ses

of s

etup

ite

m c

ode

DN

12,

13,

and

14.

Cor

rect

indo

or g

roup

add

ress

.

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

[L03

]

[L04

]

Yes

Yes

No

No

[L05

]

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

nam

e

1) C

heck

whe

ther

the

conn

ectio

n on

rem

ote

cont

rolle

rs (

grou

p an

d/or

indi

vidu

al)

has

been

cha

nged

sin

ce th

e gr

oup

conf

igur

atio

n an

d ad

dres

s ch

ecki

ng o

n th

e re

mot

e co

ntro

llers

fini

shed

.2)

If th

e gr

oup

conf

igur

atio

n an

d ad

dres

s ar

e no

rmal

whe

n po

wer

has

bee

n tu

rned

on,

the

mod

e au

tom

atic

ally

sh

ifts

to a

ddre

ss s

etup

mod

e. F

or s

ettin

g up

add

ress

es a

gain

, ref

er to

"A

ddre

ss s

etup

".

Che

ck c

ode

nam

e

Dup

licat

ed in

door

hea

der

units

Cau

se

The

re a

re tw

o or

mor

e in

door

hea

der

units

in a

gro

up

durin

g gr

oup

cont

rol.

Che

ck c

ode

nam

e

Dup

licat

ed s

etup

of o

utdo

or li

ne

addr

ess

Cau

se

Out

door

line

add

ress

es a

re d

uplic

ated

.

Dup

licat

ed in

door

uni

ts w

ith

prio

rity

(Dis

play

ed o

n in

door

uni

t with

pr

iorit

y)

Thi

s ch

eck

code

is d

ispl

ayed

on

the

indo

or u

nit s

et a

s a

prio

r on

e w

hen

two

or m

ore

prio

r in

door

uni

ts a

re d

etec

ted.

• P

riorit

y se

tup

with

two

or m

ore

units

is n

ot a

vaila

ble.

As

only

one

indo

or u

nit w

ith p

riorit

y is

val

id, c

hang

e th

e se

tup.

Cau

se

Two

or m

ore

prio

r in

door

uni

ts e

xist

.

Is th

ere

dupl

icat

ed

line

addr

ess

setu

p?

Are

com

mun

icat

ion

wire

con

nect

ions

of

[U1.

U2]

, [U

3.U

4], a

nd

[U5,

U6]

nor

mal

?

Cor

rect

the

line

addr

ess

setu

p.

Che

ck o

utdo

or I/

F P

.C. b

oard

.F

ailu

re R

epla

ce

Cor

rect

the

wire

con

nect

ion.

Re-

set u

p th

e ad

dres

s.(R

efer

to "

Add

ress

set

up".

)

[L02

]C

heck

cod

eC

ause

Whe

n th

e in

door

uni

t tha

t doe

s no

t cor

resp

ond

is

conn

ecte

d w

ith th

e ou

tdoo

r uni

t

Che

ck c

ode

nam

e

Out

door

uni

ts m

odel

dis

agre

ed e

rror

− 205 −

[L17

]

No

Yes

[L20

]

Yes

No

Yes

No

[L28

]

Che

ck c

ode

Che

ck c

ode

Cau

seC

heck

cod

e

Che

ck c

ode

nam

e

Inco

mpa

tible

com

bina

tion

of

outd

oor

units

Cau

se

Cen

tral

con

trol

add

ress

es a

re d

uplic

ated

.

Che

ck c

ode

nam

e

Dup

licat

ed c

entr

al c

ontr

ol

addr

esse

s

Che

ck c

ode

nam

e

Qua

ntity

ove

r of

con

nect

ed

outd

oor

units

A S

MM

S-e

ser

ies

outd

oor u

nit (

SM

MS

6 se

ries

unit)

can

't be

con

nect

ed w

ith a

SM

MS

-i se

ries

outd

oor u

nit

(SM

MS

4 se

ries

unit)

or o

lder

. U

se it

with

ano

ther

SM

MS

-e u

nit.

Are

not

two

or m

ore

cent

ral

cont

rol d

evic

es w

hich

hav

e sa

me

netw

ork

addr

ess

conn

ecte

d?

Is th

e nu

mbe

r of

the

conn

ecte

d ou

tdoo

r un

its 3

or

less

?

Is th

eco

mm

unic

atio

nlin

e be

twee

n ou

tdoo

r un

its c

orre

ctly

co

nnec

ted?

Cor

rect

the

netw

ork

addr

ess

of th

e ce

ntra

l con

trol

sys

tem

.

Max

. 3 o

utdo

or u

nits

are

co

nnec

tabl

e fo

r on

e sy

stem

.

Cor

rect

con

nect

ion

of th

e co

mm

unic

atio

n lin

e.

Che

ck I/

F P

.C. b

oard

.

Che

ck th

e ne

twor

k ad

apto

r on

the

indo

or P

.C. b

oard

.

1. Q

uant

ity o

ver

of c

onne

cted

out

door

uni

ts.

2. C

onne

ctio

n er

ror

of c

omm

unic

atio

n lin

e be

twee

n ou

tdoo

r un

its3.

Out

door

I/F

P.C

. boa

rd e

rror

[L08

]

Yes

No

No

Yes

[L09

]

[L10

]

Che

ck c

ode

Che

ck c

ode

Cau

seC

heck

cod

e

I/F P

.C. b

oard

A's

sy s

ervi

ce fo

r th

e ou

tdoo

r un

it is

com

mon

to th

is s

erie

s. A

set

up fo

r m

odel

sel

ectio

n di

ffere

nt

from

that

for

P.C

. boa

rd w

ith tr

oubl

e is

nec

essa

ry. S

et u

p a

mod

el b

ased

upo

n th

e P.

C. b

oard

A's

sy e

xcha

nge

proc

edur

e.

Cau

se

Indo

or u

nit a

ddre

ss is

uns

et

Che

ck c

ode

nam

e

Indo

or g

roup

/ ad

dres

s un

set

Cau

se

Indo

or u

nit's

cap

acity

is u

nset

Che

ck c

ode

nam

e

Indo

or c

apac

ity u

nset

On

the

outd

oor

IF P

.C. b

oard

for

serv

ice,

the

mod

el

sele

ctin

g ju

mpe

r ha

s no

t bee

n se

t up

so a

s to

mat

ch

with

the

mod

el.

Che

ck c

ode

nam

e

Out

door

cap

acity

uns

et

Are

pow

ers

of a

ll th

e in

door

uni

ts tu

rned

on?

Are

cap

acity

set

ups

of

indo

or u

nits

uns

et?

Turn

on

the

pow

er o

f ind

oor

units

.

Turn

on

the

pow

er o

f out

door

un

it ag

ain.

Set

up

capa

city

dat

a of

indo

or u

nit.

(Set

up C

OD

E N

o. (

DN

) =

11)

Che

ck in

door

P.C

. boa

rd.

Def

ect

Rep

lace

Re-

exec

ute

addr

ess

setu

p.(R

efer

to "

Add

ress

set

up".

)

Dis

conn

ect c

onne

ctor

s be

twee

n [U

1, U

2] a

nd [U

3, U

4].

Cle

ar a

ddre

sses

.(R

efer

to "

Add

ress

cle

ar".

)

Not

e) T

his

code

is d

ispl

ayed

whe

n th

e po

wer

is tu

rned

on

at th

e fir

st ti

me

afte

r in

stal

latio

n. (

Bec

ause

the

addr

ess

is n

ot y

et s

et u

p)

Cau

se

A S

MM

S-e

ser

ies

outd

oor u

nit (

SM

MS

6 se

ries

unit)

and

an S

MM

S-i

serie

s ou

tdoo

r uni

t (S

MM

S4

serie

s un

it)

[L23

]

Che

ck c

ode

Cau

se

Bit

3 an

d 4

of S

W17

are

turn

ing

on.

Che

ck c

ode

nam

e

SW

set

ting

mis

take

− 206 −

No

Yes

[L31

]

No

No

Yes

Yes

[P01

]

* F

or th

e m

odel

s eq

uipp

ed w

ith A

C fa

n m

otor

onl

y

Yes

Yes

No

No

[L30

]C

heck

cod

e

Cau

seC

heck

cod

e

Cau

seC

heck

cod

e

Cau

se

Abn

orm

al in

put f

rom

the

outs

ide

Che

ck c

ode

nam

e

Inte

rlock

in in

door

uni

t fro

m

outs

ide

Che

ck c

ode

nam

e

Oth

er IP

DU

err

ors

Is o

utsi

de d

evic

e co

nnec

ted

to c

onne

ctor

C

N80

?

Doe

s ou

tsid

e de

vice

co

rrec

tly o

pera

te?

Is th

ere

any

trou

ble

of o

utdo

or u

nit p

ower

su

pply

?

Is th

ere

noco

nnec

tion

erro

r or

disc

onne

ctio

n of

CN

076

conn

ecto

r?

Is n

ot th

ere

lock

of f

an

mot

or?

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Che

ck o

utsi

de d

evic

e.F

ailu

re R

epla

ce

Che

ck p

ower

vol

tage

and

lin

e.C

heck

aux

iliar

y no

ise,

etc

.

Cor

rect

cab

ling

circ

uit f

or

the

conn

ecto

r co

nnec

tion.

Rep

lace

fan

mot

or.

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Che

ck o

utdo

or I/

F P

.C.

boar

d.

Che

ck c

ause

of a

bnor

mal

in

put.

1. O

utdo

or u

nit p

ower

err

or2.

Out

door

I/F

P.C

. boa

rd e

rror

Che

ck c

ode

nam

e

Indo

or fa

n m

otor

err

or1.

Wiri

ng e

rror

2. C

heck

fan

mot

or.

[L29

]

Yes

No

Yes

Yes

No

No

Yes

No

Yes

No

Cau

seC

heck

cod

e

Is ju

mpe

rse

tup

of o

utdo

or I/

F

P.C

. boa

rd c

orre

ct?

(Che

ck ju

mpe

rs 9

, 10

, 11

and

12)

Isco

mm

unic

atio

nco

nnec

tor

betw

een

IPD

U

and

I/F P

.C. b

oard

co

nnec

ted?

Is th

ere

no d

isco

nnec

tion

of

com

mun

icat

ion

line

betw

een

IPD

U a

nd I/

F P

.C.

boar

d?*

Is th

ere

volta

ge fl

uctu

atio

n be

twee

n 4

and

5 pi

ns o

f C

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t by

test

er:

DC

0 to

5V,

5

pin

GN

D)

Is th

ere

volta

ge fl

uctu

atio

n be

twee

n 3

and

5 pi

ns o

f C

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t by

test

er:

DC

0 to

5V,

5

pin

GN

D)

Cor

rect

con

nect

ion

of ju

mpe

r.

Cor

rect

con

nect

ion

of c

onne

ctor

.

Rep

lace

com

mun

icat

ion

line.

I/F P

.C. b

oard

err

or

I/F P

.C. b

oard

err

or

Rep

lace

the

trou

bled

IP

DU

P.C

. boa

rd.

Che

ck c

ode

nam

e

IPD

U q

uant

ity e

rror

1. In

corr

ect m

odel

set

up in

ser

vice

for

I/F P

.C. b

oard

2. C

omm

unic

atio

n er

ror

betw

een

A3-

IPD

U, f

an IP

DU

an

d I/F

3. A

3-IP

DU

, fan

IPD

U, I

/F P

.C. b

oard

err

or

In th

e ca

se th

at A

ll IP

DU

s (A

3- IP

DU

s an

d fa

n IP

DU

s) d

o no

t re

turn

resp

onse

. *

Two

A3-IP

DUs

(NO

. 1 a

nd 2

) exis

t in

all m

odel

s.Fr

om 8

to 1

6 HP

mod

els,

one

Fan

-IPDU

exis

ts.

From

18

to 2

2 HP

mod

els,

two

Fan-

IPDU

s ex

ist.

Sub

-cod

e

Circ

le (O

): Fa

ulty

IPD

U

12

12

12

12

01

10

02

11

03

12

08

13

09

18

0A

19

0B

1A

1B

A3-IPDU

A3-IPDU

Fan-IPDU

Fan-IPDU

− 207 −

(A)Ye

s

Yes

Yes Ye

s

No

No

No

No

No

Yes

Yes

Yes

No

Yes

No

No

No

[P04

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Err

or c

once

rnin

g hi

gh-p

ress

ure

SW

1. H

igh-

pres

sure

SW

err

or2.

Ser

vice

val

ve c

lose

d3.

Pd

sens

or e

rror

4. In

door

/out

door

fan

erro

r5.

Indo

or/o

utdo

or P

MV

cho

ke6.

Indo

or/o

utdo

or h

eat e

xcha

nger

clo

ggin

g, a

ir sh

ort

circ

uit

7. S

V2

circ

uit e

rror

8. S

V4

circ

uit e

rror

9. S

V5

circ

uit e

rror

Dis

char

ge li

ne c

heck

val

ve m

alfu

nctio

n10

.11

. Ref

riger

ant o

verc

harg

e

Sub

-cod

e:01

: Com

pres

sor

1, 0

2: C

ompr

esso

r 2

Not

e) H

igh-

pres

sure

SW

is

norm

ally

clo

sed.

(B

con

tact

)

Doe

s hi

gh-p

ress

ure

SW

op

erat

e?

Are

par

ts o

f hig

h-pr

essu

re S

W n

orm

al?

Is s

ervi

ce v

alve

fully

op

ened

?

Are

cha

ract

eris

tics

of

high

-pre

ssur

e se

nsor

no

rmal

?

Doe

s co

olin

g ou

tdoo

r fa

n no

rmal

ly o

pera

te?

Is th

ere

any

inte

rfer

ence

of h

eat-

exch

angi

ng o

f out

door

uni

t?1.

Hea

t exc

hang

er c

logg

ing

2. A

ir sh

ort c

ircui

t

Is th

ere

any

crac

k or

co

min

g-of

f of f

an?

Con

nect

or c

onne

ctio

n, fa

n IP

DU

, fan

mot

or, w

iring

Con

nect

ors:

PM

V1:

CN

300,

P

MV

3: C

N30

2, P

MV

4: C

N30

3

Is c

ircui

t cab

ling

norm

al?

Che

ck p

arts

.F

ailu

re R

epla

ce

Che

ck a

nd c

orre

ct

cabl

ing.

Ope

n se

rvic

e va

lve

fully

.

Rep

lace

the

high

-pr

essu

re s

enso

r.

Rep

air

faul

ty p

arts

.

Rep

air

outd

oor

PM

V.

Elim

inat

e th

e in

terf

eren

ce.

Che

ck A

3-IP

DU

P.C

. boa

rd.

Fai

lure

rep

lace

(B)

Coo

ling

oper

atio

n

Coo

ling

To

(B)

Hea

ting

To

(C)

Rese

t pow

er s

uppl

y, an

d st

art a

test

op

erat

ion

corre

spon

ded

to th

e se

ason

.

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Cab

ling

3. C

oil

4. V

alve

bod

y5.

Out

door

I/F

P.C

. boa

rd

Yes

Yes

Yes

No

Yes

No

No

No

Yes

No

[P03

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Dis

char

ge te

mp

TD

1 er

ror

Are

ser

vice

valv

e of

gas

and

liqu

id

side

s fu

lly o

pene

d?O

pen

serv

ice

valv

e fu

lly.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

1 se

nsor

.

Che

ck 4

-way

val

ve.

Cor

rect

inst

alla

tion

of v

alve

co

il.R

epla

ce S

V41

val

ve.

Cor

rect

wiri

ng

Ref

riger

ant s

hort

age,

cl

oggi

ng, p

ipe

brea

kage

1. S

ervi

ce v

alve

of o

utdo

or u

nit c

lose

d2.

Out

door

PM

V e

rror

3. T

D s

enso

r er

ror

4. R

efrig

eran

t sho

rtag

e, c

logg

ing

of r

efrig

eran

t pip

ing

5. 4

-way

val

ve e

rror

6. S

V4

circ

uit l

eaka

ge, m

isin

stal

latio

n

Are

char

acte

ristic

s of

TD1

sens

or re

sist

ance

no

rmal

?

Doe

sdi

scha

rged

ref

riger

ant

gas

leak

to s

uctio

n si

de

thro

ugh

4-w

ayva

lve?

Are

indo

or u

nits

of a

di

ffere

nt r

efrig

eran

t lin

e co

nnec

ted?

No

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

Yes

(Che

ck it

usi

ng th

e m

isw

iring

che

ck

func

tion

of th

e ou

tdoo

r un

it.)

(Che

ck th

ere

is n

o pi

pe b

reak

age,

and

th

en r

echa

rge

the

refr

iger

ant.)

Is o

utdo

or P

MV

nor

mal

? C

onne

ctor

con

nect

ion

1.2.

Wiri

ng C

oil

3.4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

SV

4 ci

rcui

t1.

Are

SV

41 a

nd S

V42

valv

e co

ils

inst

alle

d co

rrec

tly?

2. Is

SV

41 c

ircui

t sea

led

corr

ectly

(no

leak

age)

?

* S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

− 208 −

[P05

]

Yes

* 38

0-41

5V±1

0%

Yes

No

No

No

Yes

Yes

No

Yes

No

[P07

]

Che

ck c

ode

Che

ck c

ode

nam

e

Cau

seC

heck

cod

e

Pha

se e

rror

det

ecte

d, p

ower

fa

ilure

det

ecte

d, a

bnor

mal

inve

rter

D

C v

olta

ge (

on c

ompr

esso

r)

Cau

se

Pha

se e

rror

or

pow

er fa

ilure

of t

he p

ower

sup

ply

to

the

outd

oor

unit

Sub

-cod

e: 0

0: P

hase

err

or/p

ower

failu

re is

det

ecte

d. 0

1: A

bnor

mal

inve

rter

DC

vol

tage

on

Com

pres

sor

1,

02: A

bnor

mal

inve

rter

DC

vol

tage

on

Com

pres

sor

2

Sub

-cod

e:01

: Com

pres

sor

1,

02: C

ompr

esso

r 2

• C

heck

the

phas

e of

the

pow

er li

ne to

the

outd

oor

unit.

• C

heck

err

or o

f out

door

I/F

P.C

. boa

rd.

• C

heck

ther

e ar

e no

loos

ened

con

nect

ors,

etc

. •

Che

ck c

onne

ctio

n w

iring

of M

G-C

TT.

•

Che

ck o

pera

tion

of M

G-C

TT.

Che

ck c

ode

nam

e

Hea

t sin

k ov

erhe

at e

rror

1. P

ower

vol

tage

err

or2.

Out

door

fan

syst

em e

rror

3. H

eat s

ink

inst

alla

tion

erro

r4.

Clo

ggin

g of

the

cool

ing

duct

for

the

heat

sin

k5.

A3-

IPD

U P

.C. b

oard

err

or

Is p

ower

vol

tage

no

rmal

?*

Is w

iring

of A

3-IP

DU

no

rmal

?

Is in

door

fan

norm

al?

Are

scr

ews

fixin

g A

3-IP

DU

and

hea

t si

nk lo

osen

ed?

Is th

ere

no

clog

ging

of h

eat

sink

coo

ling

duct

?

Cor

rect

pow

er li

ne.

Cor

rect

wiri

ng to

co

mpr

esso

r or

con

nect

or

conn

ectio

n.

Che

ck fa

n an

d fa

n m

otor

.

Tigh

ten

scre

ws.

Cle

ar c

logg

ing.

Che

ck A

3-IP

DU

P.C

. bo

ard.

Yes

Yes

Yes

No

No

Yes

No

Yes

No

No

No

No

No

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

No

No

(C)

(A)

Is S

V2

circ

uit n

orm

al?

Is S

V4

circ

uit n

orm

al?

Doe

s he

atin

g in

door

fan

norm

ally

op

erat

e?

Are

con

nect

or

conn

ectio

n, c

onde

nser

, fa

n m

otor

and

fan

norm

al?

Is c

onne

ctor

con

nect

ion

and

coil

norm

al?

Is th

ere

clog

ging

on

any

val

ve?

Are

char

acte

ristic

sof

TC

2 an

d T

CJ

sens

or

resi

stan

ce v

alue

no

rmal

?

Is in

door

PM

V

norm

al?

Is S

V5

circ

uit

norm

al?

(Che

ck it

usi

ng th

e m

isw

iring

che

ck fu

nctio

n of

the

outd

oor

unit.

)

Are

any

indo

or u

nits

of

diff

eren

t ref

riger

ant

line

conn

ecte

d?

Is th

ere

any

inte

rfere

nce

of h

eat-

exch

angi

ng o

f ind

oor u

nit?

Filt

er c

logg

ing

1.2.

Hea

t exc

hang

er c

logg

ing

3. A

ir sh

ort c

ircui

t

Rep

air

SV

4 ci

rcui

t.(C

oil e

rror

, clo

ggin

g,

disc

onne

ctio

n of

w

iring

, etc

.)

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Elim

inat

e th

e in

terf

eren

ce.

Rep

lace

PM

V b

ody.

Che

ck a

nd c

orre

ct th

e w

iring

.

Rep

lace

TC

2 an

d/or

T

CJ

sens

or.

Rep

air

faul

ty p

arts

; co

nnec

tor

conn

ectio

n,

cabl

ing,

coi

l ins

talla

tion,

cl

oggi

ng, e

tc

Ref

riger

ant o

verc

harg

e,

clog

ging

, pip

e br

eaka

ge, a

bnor

mal

ov

erlo

ad c

ondi

tion

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Hea

ting

oper

atio

n

Refri

gera

ntov

erch

arge

, clo

ggin

g,

pipe

bre

akag

e,

abno

rmal

ove

rload

co

nditio

n

Rep

air

SV

2 ci

rcui

t.

Coi

l err

or, c

logg

ing,

di

scon

nect

ion

of w

iring

, etc

.

6. T

empe

ratu

re s

enso

r tro

uble

with

bui

lt-in

IPM

− 209 −

No

Yes

Yes

No

Yes

No

Yes

Is n

ot g

roun

ded

betw

een

cabi

net a

nd 1

, 3, 5

? S

houl

d be

10M

Ω o

r m

ore.

No

Yes

No

[P12

]

CN

333

CN

334

Cau

seC

heck

cod

eC

heck

cod

e na

me

Indo

or fa

n m

otor

err

or1.

Wiri

ng e

rror

of f

an m

otor

con

nect

or2.

Fan

mot

or e

rror

3. In

door

P.C

. boa

rd e

rror

Turn

off

pow

er s

uppl

y.*

Det

ecta

ble

in m

odel

equ

ippe

d w

ith D

C fa

n m

otor

(4-w

ay c

asse

tte, 2

-way

cas

sette

, 1-w

ay c

asse

tte,

conc

eale

d du

ct, w

all a

nd c

eilin

g ty

pes)

Is th

ere

conn

ectio

n er

ror o

r di

scon

nect

ion

on c

onne

ctor

C

N33

3, C

N33

4 of

indo

or P

.C.

boar

d (M

CC

-140

2)?

Doe

s fa

n tu

rn

with

out t

roub

le w

hen

turn

ing

it w

ith

hand

s?

Isre

sist

ance

val

uebe

twee

n ea

ch p

hase

at

mot

or s

ide

of fa

n m

otor

con

nect

or

CN

333

on in

door

P.C

. bo

ard

(MC

C-1

402)

corr

ect?

*1

Is re

sist

ance

valu

e at

mot

or s

ide

of fa

n m

otor

con

nect

or C

N33

4 on

in

door

P.C

. boa

rd (M

CC

-14

02) c

orre

ct?

*2

Is o

utpu

tof

indo

or fa

n m

otor

po

sitio

n de

tect

ive

sign

al

corr

ect?

*3

Cor

rect

con

nect

or c

onne

ctio

n.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Che

ck in

door

P.C

. boa

rd

(MC

C-1

402)

.F

ailu

re R

epla

ce

Rem

ove

conn

ecto

rs C

N33

3 an

d C

N33

4 on

indo

or P

.C. b

oard

(M

CC

-140

2).

1* • Is

not

win

ding

1 (

Red

lead

) to

3 (

Whi

te le

ad),

3 (

Whi

te le

ad)

to 5

(B

lack

lead

), 5

(B

lack

le

ad)

to 1

(R

ed le

ad)

open

ed/s

hort

ed?

Res

ista

nce

valu

e sh

ould

sat

isfy

the

follo

ws.

[4-w

ay C

asse

tte ty

pe]

AP

007

to A

P03

0: A

ppro

x. 7

0 to

100

ΩA

P03

6 to

AP

056:

App

rox.

35

to 5

0Ω[2

-way

Cas

sette

type

]A

P00

7 to

AP

015:

App

rox.

70

to 1

00Ω

AP

018

to A

P03

0: A

ppro

x. 3

0 to

70Ω

AP

036

to A

P05

6: A

ppro

x. 2

0 to

50Ω

[1-w

ay C

asse

tte ty

pe]

App

rox.

30

to 7

0Ω[C

eilin

g ty

pe]

AP

015

to A

P02

7: A

ppro

x. 3

0 to

70Ω

AP

036

to A

P05

6: A

ppro

x. 2

0 to

50Ω

[Wal

l and

con

ceal

ed d

uct t

ypes

]A

ppro

x. 1

5 to

35Ω

• *2 Che

ck r

esis

tanc

e va

lue

of fa

n m

otor

pos

ition

det

ectiv

e ci

rcui

t.•

Is n

ot w

indi

ng 1

(Ye

llow

lead

) to

4 (

Pin

k le

ad)

open

ed/s

hort

ed?

Res

ista

nce

shou

ld b

e 5

to 2

0kΩ

.

3* Che

ck fa

n m

otor

pos

ition

det

ectiv

e si

gnal

.•

Mea

sure

vol

tage

with

test

er b

etw

een

1 an

d 5

of C

N33

4 on

in

door

P.C

. boa

rd (

MC

C-1

402)

und

er c

ondi

tion

of C

N33

3 an

d C

N33

4 in

stal

led

and

pow

er-O

N.

Tur

n fa

n sl

owly

with

ha

nds

so th

at p

in v

olta

ge fl

uctu

ates

bet

wee

n 0

and

5V.

• B

etw

een

4 an

d 5:

5V

Yes

Yes

Yes

Yes

No

No

No

Yes

No

No

* C

heck

ther

e is

220

-240

V v

olta

ge o

f 1-3

pin

of C

N68

on

indo

or P

.C. b

oard

.

[P10

]

Sub

-cod

e: O

verf

low

ing

indo

or u

nit's

add

ress

Cau

seC

heck

cod

e

Is fl

oat S

W

conn

ecto

r (In

door

co

ntro

l P.C

. boa

rd

CN

34) c

onne

cted

no

rmal

ly?

Doe

s flo

at S

W

oper

ate?

Is w

iring

nor

mal

?

Doe

s dr

ain

pum

p op

erat

e?

Is p

ower

sup

ply

to

drai

n pu

mp

norm

al?*

Cor

rect

con

nect

or c

onne

ctio

n.

Che

ck a

nd c

orre

ct w

iring

.

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Che

ck in

door

P.C

. boa

rd.

Fai

lure

Rep

lace

Che

ck d

rain

pip

e, e

tc.

Rep

lace

dra

in p

ump,

and

che

ck c

ablin

g.

Che

ck c

ode

nam

e

Wat

er o

verf

low

in a

n in

door

uni

t1.

Flo

at S

W m

alfu

nctio

n2.

Dra

in p

ump

mal

func

tion

3. C

logg

ing

of d

rain

pip

e4.

Indo

or P

.C. b

oard

err

or

− 210 −

Yes

Yes

No

No

Yes

Yes

No

Yes

No

[P15

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Gas

leak

det

ectio

nT

S c

ondi

tion

(Sub

-cod

e: 0

1)1.

Out

door

uni

t ser

vice

val

ve c

lose

d2.

Out

door

PM

V e

rror

3. T

S1

sens

or e

rror

4. R

efrig

eran

t sho

rtag

e, c

logg

ing

refr

iger

ant c

ircui

t5.

4-w

ay v

alve

err

or6.

SV

4 ci

rcui

t err

or

Are

ser

vice

val

ves

at g

as a

nd li

quid

si

de fu

lly o

pene

d?O

pen

serv

ice

valv

es fu

lly.

Rep

air

outd

oor

PM

V.

Rep

lace

TS

1 se

nsor

.

Che

ck a

nd r

epla

ce 4

-way

va

lve

and

coil.

Rep

air

SV

41/S

V42

val

ve

circ

uits

.

Ref

riger

ant s

hort

age,

cl

oggi

ng, p

ipe

brea

kage

.(C

heck

ther

e is

no

clog

ging

and

pip

e br

eaka

ge, a

nd th

en r

echa

rge

refr

iger

ant.)

(Coi

l, va

lve

body

, dis

conn

ectio

n of

wire

, etc

.)

Are

char

acte

ristic

sof

TS

1 se

nsor

re

sist

ance

norm

al?

Doe

s di

scha

rge

refr

iger

ant g

as b

ypas

s to

suc

tion

side

thro

ugh

4-w

ay v

alve

?

Is th

ere

any

leak

age

on S

V41

an

d S

V42

val

ve

circ

uits

?

No

Con

nect

ors:

PM

V1:

CN

300,

PM

V3:

CN

302,

PM

V4:

CN

303

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n W

iring

2. C

oil

3.4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

Yes

Yes

No

No

No

Yes

No

Yes

No

Yes

Yes

No

Yes

No

Yes

Yes

[P13

]C

heck

cod

eC

heck

cod

e na

me

Out

door

liqu

id b

ack

dete

ctio

n er

ror

Cau

se

1. P

MV

1/P

MV

3/P

MV

4 er

ror

2. P

d se

nsor

, Ps

sens

or e

rror

3. C

logg

ing

of S

V2

circ

uit

4. C

logg

ing

of S

V3B

circ

uit a

nd/o

r ba

lanc

e pi

pe5.

Lea

kage

at a

che

ck v

alve

on

a m

ain

disc

harg

e pi

pe6.

Out

door

I/F

P.C

. boa

rd e

rror

Are

conn

ectio

ns o

f out

door

P

MV

1/P

MV

3/P

MV

4co

nnec

tors

cor

rect

?

Are

oper

atio

ns o

f out

door

P

MV

1/P

MV

3/P

MV

4no

rmal

?

Are

char

acte

ristic

s of

Pd

sens

or/P

s se

nsor

ou

tput

vol

tage

no

rmal

?

Is S

V2

valv

e co

il co

rrec

tly c

onne

cted

?

Are

bal

ance

pip

e se

rvic

e va

lves

of

all u

nits

fully

op

ened

?

Is th

ere

no

clog

ging

of S

V3B

va

lve?

Is th

ere

nocl

oggi

ng o

f SV

3B v

alve

of

any

oth

er u

nit t

han

mal

func

tioni

ng o

ne?

Cor

rect

con

nect

or c

onne

ctio

n.

(PM

V1:

CN

300,

PM

V3:

C

N30

2, P

MV

4: C

N30

3)

PM

V e

rror

Pd

sens

or/P

s se

nsor

err

or

Cor

rect

con

nect

or c

onne

ctio

n.

(SV

2: C

N31

1)

Ope

n fu

lly b

alan

ce p

ipe

serv

ice

valv

es o

f all

units

.

Rep

lace

clo

ggin

g pa

rts.

Rep

lace

clo

ggin

g pa

rts.

Rep

lace

che

ck v

alve

of m

ain

disc

harg

e pi

pe.

Che

ck I/

F P

.C. b

oard

.

Is th

ere

no le

akag

e of

ch

eck

valv

e of

mai

n di

scha

rge

pipe

in fo

llow

er

units

in w

hich

com

pres

sors

ar

e dr

iven

in c

oolin

g op

erat

ion?

* S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

− 211 −

Yes

Yes

No

No

No

No

Yes

Yes

No

No

Yes

[P17

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Dis

char

ge te

mp

TD

2 er

ror

1. O

utdo

or u

nit s

ervi

ce v

alve

clo

sed

2. O

utdo

or P

MV

err

or3.

TD

sen

sor

erro

r4.

Ref

riger

ant s

hort

age,

clo

ggin

g of

ref

riger

ant c

ircui

t5.

4-w

ay v

alve

err

or6.

SV

4 ci

rcui

t lea

kage

, mis

inst

alla

tion

Are

ser

vice

val

ves

of g

as a

nd li

quid

si

des

fully

ope

ned?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

2 se

nsor

.

Che

ck 4

-way

val

ve.

Cor

rect

inst

alla

tion

of

valv

e co

il.R

epla

ce S

V42

val

ve.

Cor

rect

wiri

ng

Ref

riger

ant s

hort

age,

cl

oggi

ng, p

ipe

brea

kage

Are

indo

or u

nits

of a

di

ffere

nt r

efrig

eran

t lin

e co

nnec

ted?

Are

char

acte

ristic

sof

TD

2 se

nsor

re

sist

ance

norm

al?

Doe

s di

scha

rge

refr

iger

ant g

as b

ypas

s to

suc

tion

side

thro

ugh

4-w

ay v

alve

?

Con

nect

ors:

PM

V1:

CN

300,

P

MV

3: C

N30

2, P

MV

4: C

N30

3

Yes

(Che

ck it

usi

ng th

e m

isw

iring

che

ck

func

tion

of th

e ou

tdoo

r un

it.)

(Che

ck th

ere

is n

o pi

pe b

reak

age,

and

th

en r

echa

rge

the

refr

iger

ant.)

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng C

oil

3.4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

SV

4 ci

rcui

t1.

Are

SV

41, S

V42

va

lve

coils

inst

alle

d co

rrec

tly?

Is S

V42

circ

uit s

eale

d 2. co

rrec

tly (

no le

akag

e)?

Yes

Yes

No

No

No

Yes

No

No

Yes

[P15

]C

ause

Che

ck c

ode

Che

ck c

ode

nam

e

Gas

leak

det

ectio

nT

D c

ondi

tion

(Sub

-cod

e: 0

2)1.

Out

door

uni

t ser

vice

val

ve c

lose

d2.

Out

door

PM

V e

rror

3. T

D s

enso

r er

ror

4. S

V4

circ

uit e

rror

5. R

efrig

eran

t sho

rtag

e, c

logg

ing

refr

iger

ant c

ircui

t

Are

ser

vice

va

lves

of g

as

and

liqui

d si

des

fully

ope

ned?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

1 an

d TD

2 se

nsor

.

Cor

rect

wiri

ng.

Ref

riger

ant s

hort

age,

cl

oggi

ng, p

ipe

brea

kage

.

Rep

air

SV

4 va

lve

circ

uits

.

(Coi

l, va

lve

body

, coi

l ins

talla

tion,

di

scon

nect

ion

of c

able

, etc

.)

Yes

(Che

ck it

usi

ng th

e m

isw

iring

che

ck

func

tion

of th

e ou

tdoo

r un

it.)

(Che

ck th

ere

is n

o cl

oggi

ng a

nd p

ipe

brea

kage

, and

then

rec

harg

e re

frig

eran

t.)

Con

nect

ors:

PM

V1:

CN

300,

P

MV

3: C

N30

2, P

MV

4: C

N30

3

Are

char

acte

ristic

sof

TD

1 an

d TD

2 se

nsor

res

ista

nce

norm

al?

Is S

V4

valv

eci

rcui

t nor

mal

?(C

oil m

isin

stal

latio

n,

valv

e le

akag

e)

Are

not

indo

or

units

in d

iffer

ent

refr

iger

ant c

ircui

t co

nnec

ted?

Is o

utdo

or P

MV

nor

mal

? C

onne

ctor

con

nect

ion

1. W

iring

2. C

oil

3.4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

* S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

* S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

− 212 −

Yes

Yes

Yes

No

Yes

No

No

Yes

No

Yes

NoNo

Yes

No

[P20

]

Coo

ling

oper

atio

n(B

)

No

Yes

No

esuaC

edoc kcehC

Che

ck c

ode

nam

e

Hig

h-pr

essu

re p

rote

ctiv

e op

erat

ion

1. P

d se

nsor

err

or2.

Ser

vice

val

ve c

lose

d.3.

Indo

or/o

utdo

or fa

n er

ror

4. In

door

/out

door

PM

V c

logg

ing

5. In

door

/out

door

hea

t exc

hang

er c

logg

ing

6. S

V2

circ

uit e

rror

7. S

V4

circ

uit e

rror

8. S

V5

circ

uit e

rror

9. O

utdo

or I/

F P

.C. b

oard

err

or10

. Ope

ratio

n er

ror

of c

heck

val

ve o

f mai

n di

scha

rge

pipe

11. R

efrig

eran

t ove

rcha

rge

Are

ser

vice

val

ves

fully

op

ened

?

Doe

sco

olin

g ou

tdoo

r fa

n no

rmal

ly o

pera

te?

Is th

ere

any

fan

crac

k or

com

ing-

off?

Is S

V2

bypa

ss

circ

uit n

orm

al?

Is S

V4

circ

uit n

orm

al?

Is c

heck

val

ve o

f m

ain

disc

harg

e pi

pe

norm

al?

Are

char

acte

ristic

s of

hig

h-pr

essu

re s

enso

r no

rmal

?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Rep

air

outd

oor

PM

V.

Elim

inat

e th

e in

terf

eren

ce.

Rep

air

SV

2 by

pass

circ

uit.

Rep

air

SV

4 ci

rcui

t.

Rep

air

chec

k va

lve.

R

epla

ce

Ref

riger

ant o

verc

harg

e, c

logg

ing,

pip

e br

eaka

ge, a

bnor

mal

ove

rload

(Con

nect

or c

onne

ctio

n, fa

n IP

DU

, fa

n m

otor

, cab

ling)

(Coi

l err

or, c

logg

ing,

dis

conn

ectio

n of

wire

, etc

.)

(Coi

l err

or, c

logg

ing,

dis

conn

ectio

n of

wire

, etc

.)

Che

ck p

arts

.F

ailu

re R

epla

ce

Res

et p

ower

sup

ply,

and

sta

rt a

test

ope

ratio

n co

rres

pond

ed to

the

seas

on.

Coo

ling

To

(B)

Hea

ting

To

(C)

* 1. P

ress

ure

by p

ress

ure

gaug

e (C

heck

join

t)2.

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay3.

Out

put v

olta

ge o

f I/F

P.C

. boa

rdIf

1 an

d 2,

3 a

re d

iffer

ent,

an e

rror

of p

ress

ure

sens

or

is c

onsi

dere

d.If

2 an

d 3

are

diffe

rent

, che

ck I/

F P

.C. b

oard

.

Is th

ere

any

inte

rfere

nce

of h

eat-

exch

angi

ng o

f out

door

uni

t?1.

Hea

t exc

hang

er c

logg

ing

2. A

ir sh

ort c

ircui

t

Con

nect

ors:

PM

V1:

CN

300,

P

MV

3: C

N30

2, P

MV

4: C

N30

3

Yes

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng3.

Coi

l4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

Yes

No

Yes

No

Yes

No

No

No

Yes

No

Yes

[P19

]

Sub

-cod

e: D

etec

ted

outd

oor

unit

No.

Cau

seC

heck

cod

eC

heck

cod

e na

me

4-w

ay v

alve

rev

erse

err

or1.

4-w

ay v

alve

err

or2.

TS

1 se

nsor

/TE

1 se

nsor

err

or3.

Pd

sens

or/P

s se

nsor

err

or4.

TE

sen

sor/

TL

sens

or m

isco

nnec

tion

Is 4

-way

val

ve

coil

conn

ecto

r co

nnec

ted?

Are

out

put v

olta

ge

char

acte

ristic

s of

Pd

and

Ps

sens

ors

norm

al?

Are

char

acte

ristic

s of

re

sist

ance

val

ue o

f TS

1,

TE

1 an

d T

L1 s

enso

rs

norm

al?

Are

TS

1, T

E1

an

d T

L1 s

enso

r co

nnec

tors

con

nect

ed

norm

ally

?

Doe

sdi

scha

rge

refri

gera

nt

gas

bypa

ss to

suc

tion

side

thro

ugh

4-w

ay

valv

e? *

1

Doe

s 4-

way

val

ve

oper

ate?

Cor

rect

con

nect

or c

onne

ctio

n.

(4-w

ay v

alve

coi

l: C

N31

7)

Sen

sor

erro

r

Sen

sor

erro

r

Cor

rect

con

nect

or c

onne

ctio

n T

S1

sens

or: C

N50

5T

E1

sens

or: C

N52

0T

L1 s

enso

r: C

N52

3

If no

err

or o

ccur

s in

the

test

op

erat

ion,

res

tart

ope

ratio

n.

Che

ck 4

-way

val

ve.

4-w

ay v

alve

err

or

Res

et th

e po

wer

sup

ply

and

star

t hea

ting

test

ope

ratio

n.

*1 C

heck

TS

1 an

d T

E1

tem

pera

ture

of t

he o

utdo

or u

nit w

hich

is r

unni

ng.

(I/F

) S

W01

=[1

], S

W02

=[6

], S

W03

=[2

] T

S s

enso

r te

mpe

ratu

re

SW

01=

[1],

SW

02=

[7],

SW

03=

[2]

TE

sen

sor

tem

pera

ture

<Ju

dgm

ent c

riter

ia>

TE

1 se

nsor

: Nor

mal

if T

E1

is 3

0°C

or

less

in th

e se

ason

s ex

cept

su

mm

er (

Out

side

tem

p 20

°C o

r lo

wer

)T

S1

sens

or: N

orm

al if

TS

is 5

0°C

or

less

in th

e se

ason

s ex

cept

su

mm

er (

Out

side

tem

p 20

°C o

r lo

wer

)

* S

ee “

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s” o

n “8

-10.

Sen

sor

Cha

ract

eris

tics”

.

− 213 −

Yes

Yes

No

No

No

Yes

No

Yes

No

Yes

* Res

ista

nce

of th

e w

indi

ng: 8

.1-9

.9Ω

(be

twee

n R

-S, R

-T a

nd S

-T)

[P22

]esua

Cedoc kceh

CC

heck

cod

e na

me

Out

door

fan

IPD

U e

rror

1. F

an lo

ck2.

Fan

IPD

U P

.C. b

oard

err

or3.

Ove

rload

4. E

xter

nal c

ause

suc

h as

bla

st

Sub

-cod

e:∗0

: s

hort

circ

uit

∗1: P

ositi

on d

etec

tion

circ

uit e

rror

∗3

: Mot

or lo

ck

∗4: M

otor

cur

rent

err

or d

etec

ted

∗C: T

H s

enso

r te

mpe

ratu

re e

rror

∗D

: TH

sen

sor

erro

r∗E

: Fan

Vdc

err

or∗

: Fa

n1,2

:Fan

2

Is w

ireco

nnec

tor

conn

ectio

n on

fan

IPD

U P

.C. b

oard

no

rmal

?

Is n

ot o

utdo

or fa

n m

otor

lock

ed?

Is th

e re

sist

ance

of

the

mot

or's

win

ding

w

ire n

orm

al?

Is s

ub-c

ode

of

outd

oor

I/F P

.C.

boar

d [0

*]?

Is th

ere

no p

robl

em s

uch

as

stuf

fing

or b

last

blo

win

g to

dis

char

ge p

ort o

f ou

tdoo

r fa

n?

Cor

rect

wire

con

nect

or

conn

ectio

n.

Rep

lace

mot

or.

Rep

lace

fan

IPD

U.

Cle

ar th

e ca

use

of o

verlo

ad.

Che

ck fa

n IP

DU

.

Yes

Yes

No

No

No

No

Yes

No

Yes

Yes

No

Yes

Yes

Yes

No

No

Yes

No

(C) Ye

s

No

Hea

ting

oper

atio

n

Doe

s he

atin

g in

door

fan

norm

ally

op

erat

e?

Is in

door

PM

V

norm

al?

Is c

heck

val

ve

of m

ain

disc

harg

e pi

pe

norm

al?

Is th

ere

clog

ging

in a

ny

valv

es?

Is S

V5

circ

uit n

orm

al?

Are

any

indo

or

units

in d

iffer

ent

refr

iger

ant c

ircui

t co

nnec

ted?

Are

char

acte

ristic

s of

se

nsor

TC

2 an

d T

CJ

resi

stan

ce n

orm

al?

Is c

onne

ctor

co

nnec

tion

and

coil

norm

al?

Is c

onne

ctor

co

nnec

tion,

con

dens

er

or fa

n m

otor

nor

mal

?R

epai

r fa

ulty

par

ts.

Rep

air

faul

ty p

arts

.

Rep

air

chec

k va

lve.

R

epla

ce

Elim

inat

e th

e in

terf

eren

ce.

Rep

lace

PM

V b

ody.

Che

ck a

nd c

orre

ct

wiri

ng.

Rep

lace

TC

2 or

TC

J se

nsor

.

Ref

riger

ant o

verc

harg

e,

clog

ging

, pip

e br

eaka

ge,

abno

rmal

ove

rload

Che

ck in

door

P.C

. boa

rd.

Fau

lty R

epla

ce

Rep

air

SV

5 ci

rcui

t.

(Coi

l err

or, c

hoke

, di

scon

nect

ion

of c

able

s, e

tc.)

(Che

ck it

usi

ng th

e m

isw

iring

che

ck fu

nctio

n of

the

outd

oor

unit.

)

Is th

ere

any

inte

rfer

ence

of

hea

t-ex

chan

ging

of

indo

or u

nit?

1. F

ilter

clo

ggin

g H

eat e

xcha

nger

2.

clog

ging

3. A

ir sh

ort c

ircui

t

− 214 −

Yes

No

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− 215 −

8-6. 7-Segment Display Function7-segment display on outdoor unit (interface P.C. board)The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C. board (SW01, SW02 and SW03).

Checking Procedure to Be Followed in Event of Abnormal ShutdownIf the system is shut down due to an error in the outdoor unit, perform checks in the following steps:

1 Open the panel of the outdoor unit and inspection window of the electric parts box, and check the7-segment display.The check code is displayed in the right-hand section of the 7-segment display [B].[U1] [OOO] ([OOO]: Check code)* To check the check code, set the rotary switches SW01/SW02/SW03 to [1/1/1].

If there is a sub-code, the display alternates between the check code [OOO] (3 seconds) and the sub-code [OOO] (1 second).

2 Check the check code and follow the applicable diagnostic procedure.

3 If the 7-segment display shows [U1] [E28], there is an error in a follower unit.Press the push-switch SW04 on the header unit and hold for several seconds.As the fan of the outdoor unit in which the error has occurred comes on, open the panel of the unit, and check the check code shown on the 7-segment display.

4 Perform checks in accordance with the diagnostic procedure applicable to the check code.


SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

7-segment display[A]

Push switch

7-segment display[B]

Rotary switches

− 216 −

(1)Display of System Information (Displayed on Header Outdoor Unit Only)

liated yalpsiD30WS20WS10WS

1

1

3

−

2System capacity A […8]~[64]:8 to 64 HP

B [HP]

3No. of outdoor units A […1]~[…3]:1 to 3

B […P]

4No. of indoor units connected / No. of units with cooling thermostat ON

A […0.]~[64.]:0 to 64 (No. of units connected)

B [C…0]~[C64]:0 to 64 (No. of units with cooling thermostat ON)

5No. of indoor units connected / No. of units with heating thermostat ON

A […0.]~[64.]:0 to 64 (No. of units connected)

B [H…0]~[H64]:0 to 64 (No. of units with heating thermostat ON)

6Amount of compressor command correction

A Value displayed in hexadecimal format

B

7Release control A Normal: [r. …], During release control: [r.1]

B –

8Oil equalization control Normal: [oiL-0]

During oil equalization control: [oiL-1]

9

Oil equalization request A Displayed through LED segment lighting pattern

B

10Refrigerant/oil recovery operation A Oil recovery in cooling: [C1], Normal: [C …]

B Refrigerant recovery in heating: [H1], Normal: [H …]

11Automatic addressing A [Ad]

B During automatic addressing: [… FF], Normal: [… … …]

12Power peak-cut A [dU]

B Normal: [… … …], During 50-90% capacity operation: [_50-_90]While control is based on BUS line input: [E50-E90]

13

BAsutats lortnoc lanoitpo syalpsiD)tupni draob .C.P( lortnoc lanoitpO

Operation mode selection: During priority heating (normal) h. . . . .

.cgnilooc ytiroirP . . . .

.Hylno gnitaeH . . . .

.Cylno gnilooC . . . .

Priority given to No. of indoor units in operation n. . . . .

.Utinu roodni cificeps ot nevig ytiroirP . . . .

External master ON/OFF: Normal .…. . . .

Start input .1. . . .

Stop input .0. . . .

Night operation: Normal . . …. . .

Start input . . 1. . .

Snowfall operation: Normal . . .…. .

Start input . . .1. .

14 Optional control (BUS line input)

Same as above

15

16

–

–

F G

A

DU2U1 U3

Dp

B

E C

Display section A Display section B

Outdoor unit No.

If element F shown on sketch at left turned on: Header unit oil equalization requestIf element C shown on sketch at left turned on: Follower unit oil equalization request

−

–

–

− 217 −

(2)Display of Outdoor Unit Information (Displayed on Each Outdoor Unit)


1

1

1

Outdoor unit No.: [U1] to [U3]Aatad rorrE

B Check code (only latest one displayed)If there is no check code, [– – –] is displayed.If there is sub-code, check code [ ] and sub-code [– ] are displayed alternately, for 3 seconds and 1 second, respectively.

<SW04> push SW function: Fan operation at outdoor unit with error. 7-segment display section A: [E.1]<SW04 + SW05> push SW function: Fan operation at outdoor unit without error. 7-segment display section A: [E.0]<SW05> push SW function: Fan operation function check mode is cancelled.

2–A–

B –

3Operation mode A Stop [… …]

Normal cooling: [… C], Normal heating: [… H], Normal defrosting: [… J]

B –

4Outdoor unit HP capacity A 8HP: [… 8], 10HP: [… 10], 12HP: [… 12],

14HP: [14], 16HP: [16], 18HP: [18], 20HP: [20], 22HP: [22]B […HP]

5

Compressor operation command * Operation data of each compressor is displayed in turn in 2 second intervals.

Normal: Compressor speed (rps) is displayed in decimal format.7-segment display (A/B): [C1. ... ... ... ] [ ... ∗ ∗ ∗, ∗ ] [C2. ... ... ... ] [ ... ∗ ∗ ∗, ∗ ] <SW04> push SW function: Switches to display of operating current (decimal value). 7-segment display (A/B): [i1. ] [i2. ] Pressing of <SW05> restores normal display.

6Outdoor fan mode A [FP]

B Mode 0 to 63: [… 0] to [63]

7

Compressor backup A [C.b.]

B Displays compressor backup setting status Normal: [… … …]Compressor No. 1 backup: [1 … …] Compressor No. 2 backup: [… 1 …]

8–A–

B –

9

Control valve output data Displays control output status of solenoid valve A B

… … …1 .HFFO :2 evlav yaw-4 / NO :evlav yaw-4

… … …0 .HNO :2 evlav yaw-4 / FFO :evlav yaw-4

10

0 0 1… .2SV2: ON / SV51: OFF / SV52: OFF

0 1 0… .2SV2: OFF / SV51: ON / SV52: ON

1 0 0… .2SV2: OFF / SV51: OFF / SV52: ON

11

SV3A: ON / SV3B: OFF / SV3C: OFF / SV3D: OFF 3. 1 0 0 0

SV3A: OFF / SV3B: ON / SV3C: OFF / SV3D: OFF 3. 0 1 0 0

SV3A: OFF / SV3B: OFF / SV3C: ON / SV3D: OFF 3. 0 0 1 0

SV3A: OFF / SV3B: OFF / SV3C: OFF / SV3D: ON 3. 0 0 0 1

12

0 0 1… .4SV41: ON / SV42: OFF

0 1 0… .4SV41: OFF / SV42: ON

13 PMV1/PMV3 opening

Displays opening data in decimal format.

. P

…gninepo 4VMP14 . P

15

Oil level judgment status

].L o[AlamroN

B Initial display: [… … …], Oil level judgment result: [#. .$]Displayed letters #, and $ represent judgment results for compressor Nos. 1 and 2, respectively (“0” for normal and “1” or “2” for low level).

<SW04> push SW function: Displays low level confirmed judgment result of each compressor.

* Pressing of <SW05> restores normal display.

A [L d.]

B Compressor No. 1 low level being confirmed: [L … …] Compressor No. 2 low level being confirmed: [… L …]

SV2, SV51, SV52

PMV4

PMV1

…

. P

PMV3

Displays opening data in decimal format."Press <SW04>, then PMV1 display switches to PMV3 display."

− 218 −

(3)Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit)

SW01 SW02 SW03Pd pressure data A BPd pressure (MPaG) is displayed in decimal format.

(MPaG: Approx. 10 times magnitude of kg/cm2G) P d. ∗. ∗ ∗2 Ps pressure data Ps pressure (MPaG) is displayed in decimal format. P s. ∗. ∗ ∗3 PL pressure conversion data Converted PL pressure (MPaG) is displayed in decimal format. P L. ∗. ∗ ∗

TD1 sensor data Letter symbol t d 1 ... ...Temperature sensor reading (°C) is displayedin decimal format. Data ∗ ∗. ∗ ∗

TD2 sensor data • Letter symbol and data are displayed Letter symbol t d 2 ... ...Data ∗ ∗. ∗ ∗

TS1 sensor dataalternately, for 1 second and display for 3seconds, respectively. Letter symbol t S 1 ... ...• Data is displayed in [ ∗ ]. Data ∗ ∗. ∗ ∗

TS3 sensor data • Data with negative value is displayed as [– ∗]. Letter symbol t S 3 ... ...Data ∗ ∗. ∗ ∗

TE1 sensor data Letter symbol t E 1 ... ...Data ∗ ∗. ∗ ∗

TE2 sensor data Letter symbol t E 2 ... ...Data ∗ ∗. ∗ ∗

TL1 sensor data Letter symbol t L 1 ... ...Data ∗ ∗. ∗ ∗



TO sensor data Letter symbol t o ... ... ...Data ∗ ∗. ∗ ∗

SW01 SW02 SW03TK1 sensor data Letter symbol F 1 ... ... ...Temperature sensor reading (°C) is displayed

in decimal format. Data ∗ ∗. ∗ ∗TK2 sensor data Letter symbol F 2 ... ... ...

Data ∗ ∗. ∗ ∗TK4 sensor data Letter symbol F 4 ... ... ...

Data ∗ ∗. ∗ ∗TK5 sensor data Letter symbol F 5 ... ... ...

Data ∗ ∗. ∗ ∗TG1 sensor data Letter symbol t G 1 ... ...

Data ∗ ∗. ∗ ∗TG2 sensor data Letter symbol t G 2 ... ...

Data ∗ ∗. ∗ ∗

Display detail

5

7

91 2

Display detail

1

2

10

11

13

14

15

16

1

4

5

6

7

514

− 219 −

(4)Display of Outdoor Cycle Data (Displayed at Header Unit)* This method is used when displaying follower unit information on the 7-segment display of the header unit.

Note: Follower unit is selected by setting SW03.


3

1

1~3

Aatad rorrE [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B Check code is displayed (latest one only). If there is no check code: [– – –].

2Type of compressor installed A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B

3Outdoor unit HP capacity A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B 8HP: [… 8], 10HP: [… 10], 12HP: [… 12], 14HP: [14], 16HP: [16], 18HP: [18], 20HP: [20], 22HP: [22]

4

Compressor operation command A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B Indicates which compressor is ON.

Any unconnected compressors is represented by “–”. B

1 0 NO si 1 .oN rosserpmoc nehW

0 1NO si 2 .oN rosserpmoc nehW

5Fan operation mode A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B At rest: [F … 0], In mode 63: [F 6 3]

6Release signal A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B Normal: [r … …], Upon receiving release signal: [r … 1]

7Oil level judgment A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B Normal: [… … …], Low level: [… … L]

8Compressor 1 operating current A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B [ . ], . is value of operating current in decimal format.

9Compressor 2 operating current A [U. ], : SW03 setting No. + 1 (Outdoor unit No. U2 to U3)

B [ . ], . is value of operating current in decimal format.

SW03 7-segment display section A

1 U2

2 U3

− 220 −

B4 Indoor BUS communication signalreceiving status

Upon receiving signal: [... ... 1], Other times: [... ... ...]

B5 Indoor check code No check code: [– – –]

B6 Indoor HP capacity 0. 2, 0. 5, 0. 8, ... 1, 1. 2, 1. 7, ... 2, 2. 5,...3, 3. 2, ...4, ...5, ...6, ...8, 1 0, 1 6, 2 0

8 Indoor PMV opening data Displayed in decimal format

9

1~4

1~16

Indoor TA / TRA opening data Displayed in decimal format

11~14 Indoor TSA opening data Displayed in decimal format

10 Displayed in decimal format1~4 Indoor TF / TFA opening data

11~14 Indoor TOA opening data Displayed in decimal format

B11 Indoor TCJ opening data Displayed in decimal format

B12 Displayed in decimal format

B13

1~4 Indoor TC1 opening data

Indoor TC2 opening data Displayed in decimal format

B

7

Indoor request command(S code, operation mode)

[ #. ... ∗ ]# represents mode:COOL: [C. ... ∗], HEAT: [H. ... ∗]FAN: [F. ... ∗], OFF: [S. ... ∗]∗ represents S code: [#. ... 0] to [#. ... F]

SW01 SW02 SW03 Display detail

SW02

1~16

SW03

1

11

2

12

3

13

Indoor address

SW02 setting number

SW02 setting number +16

SW02 setting number +32

7-segment display section A

[01]~[16]

[17]~[32]

[33]~[48]

(5) Display of Indoor Unit Information (Displayed on Header Unit Only)

Note: Indoor address No. is selected by setting SW02 and SW03 and displayed on 7-segment display, section A.

(6) Display of Outdoor EEPROM Writing Error Code (Displayed on Header Unit Only)* The latest error code written in the EEPROM of each outdoor unit is displayed.

(This function is used to check the error code after the resetting of the power supply.)To display the error code, push SW04 and hold for at least 5 seconds after setting SW01 to 03 as shown in thetable below.

• 7-Segment Display

SW01 SW02 SW03 Indoor address 7-segment display section A

1 E. 1. ∗∗∗Latest error code of header unit (U1)

1 2 16 E. 2. ∗∗∗Latest error code of follower unit No. 1 (U2)

3 E. 3. ∗∗∗Latest error code of follower unit No. 2 (U3)

Section A Section B

D600 D601 D602 D603 D604

Set SW01/SW02/SW03 to [1/1/16] and push SW04 and hold for at least 5 seconds. The latest error code of theheader unit (U1) will be displayed.If the setting of SW02 is changed, the latest error code of a follow unit (U2-U3) will be displayed.

4

14

SW02 setting number +48 [49]~[64]

− 221 −

B

B

B

B

B

8-7. Oil Level Judgment DisplayThe current compressor oil level judgment results can be accessed by setting the switches provided on the interface P.C. board of an outdoor unit.Perform the checks in accordance with the procedure described below.

1 Operation Procedure(1) Start the operation.(2) Set the switches provided on the interface P.C. board of the outdoor unit for which oil level judgment results are

required as follows: SW01/SW02/SW03 = 1/16/1

(3) The oil level judgment result will be displayed on the 7-segment display.7-segment display: [oL] [#. .$]The letters #, and $ are digits that represent judgment results for compressor Nos. 1 and 2, respectively.(See the table below for the interpretation of the judgment results.)

(4) When checking is completed, revert the SW01/SW02/SW03 setting to [1/1/1].

2 Oil Level Judgment Results

Display example

Displayed digit Judgmen noitpircseDtluser t

O Normal The amount of oil in the compressor is sufficient.

12

Low levelThe amount of oil in the compressor is insufficient. (Both “1” and “2” stand for insufficiency.)If this result persists, the system will turn itself off in a protective shutdown.

1Start operation.

3

2 4

Interface P.C. board of outdoor unit for which oil level judgment results are

Oil level judgment results are displayed

Set SW01/SW02/SW03 to 1/16/1.

Upon completion of checking, revert SW01/SW02/SW03 setting to 1/1/1.

7-segment display [ oL ][ oL ][ oL ]

Oil level is normal for compressors 1 and 2.Oil level is low for compressors 1 and 2.Oil level is low for compressor 2 and normal for compressors 1.

Judgment result for compressor 2 Judgment result for compressor 1

[ 0 0 ][ 2 2 ][ 0 2 ]

− 222 −

8-8. SMMS-e Outdoor Interface P.C. Board Function Setting Exchange Table

1. Switch/Function Setting Exchange

SW06 DIP SW 4 bit

bit 1 Compressor 1 backup OFF: Normal, ON: Backup when compressor 1 was in trouble

Part type Exchange contents Initial settingat shipment

OFF

SW07 DIP SW 4 bit

bit 1 Demand control 1(Standard specifications) Exchange of upper limit regulation

OFF: 0 to 100%ON : Middle to 100% OFF

SW09 DIP SW 4 bit

In case of center outdoor unit

bit 2 Demand control 2 (Expansion function)Exchange of 2 steps to 4 steps ofupper limit

OFF: 2 steps (Standard)ON : 4 steps OFF

bit 2 Compressor 2 backup OFF: Normal, ON: Backup when compressor 2 was in trouble

OFF

In case of terminal outdoor unit

bit 2 Indoor connection capacity over Judgment of error

OFF: Error judgmentON : None (when backup setting for outdoor unit)

OFF

bit 4 Judgment of error for No. of connectedindoor units

OFF: No error judgmentON : Error judgment

OFF

SW10 DIP SW 4 bit

bit 2 Outdoor fan high static pressureoperation

OFF: NormalON : High static pressure operation

OFF

SW12 DIP SW 4 bit

bit 1 Selection of PMV open/close ormanual operation

(According to the following setting contents) OFF

bit 1 bit 2

OFF OFF

OFF ON

PMV1 opens/closes by operation of CN30/CN31 (*1) PMV3 opens/closes by operation of CN30/CN31 (*1)PMV4 opens/closes by operation of CN30/CN31 (*1)

bit 2 OFF

SW11 DIP SW 4 bitbit 4 Operation switching when indoor water

overflow error detectedOFF: Entire system stopsON : System operation continues (Room which trouble occurred only stops.)

OFF

SW16 DIP SW 4 bit

bit 1 Option functionOutput exchange of external outputP.C. boa

(According to the following setting contents) OFF

SW14 DIP SW 4 bit

bit 1 Line address setup OFF

bit 1 bit 2

OFF OFF Compressor operation output

ON OFF

bit 2 OFF

bit 2 OFF

bit 3 OFF

bit 4 OFF

SW13 DIP SW 4 bit bit 4 Line address setup (Used by combining with SW14) OFF

Display of system operation ratio

CN30 Check connector Manual full opening operation for PMVopening operation

When released: Normal,When short-circuited: Open fully (2 minutes)

Released

SW30 DIP SW 2 bit

bit 1 Communication termination resistancebetween outdoor units

OFF: No termination resistanceON : With termination resistance

ON

CN31 Check connector Manual full closing operation for PMVopening operation

When released: Normal,When short-circuited: Closed fully (2 minutes)

Released

bit 2 Communication termination resistancebetween indoor and outdoor units

OFF: No termination resistanceON : With termination resistance

ON

bit 3 For low noise operation OFF: NormalON : INV frequency upper limit restriction

OFF

bit 4 OFF: NormalON : Fan rpm upper limit restriction

OFF

bit 4 Exchange of Outdoor unit No. / Startorder No.

OFF: Outdoor unit No. [U. #] (#: 1 to 3)ON : Outdoor start order No. [y. #] (#: 1 to 3)

OFF

All bit1 and 2 are ON: Setup of outdoor unit backup OFF

*1 PMV full open/full close operation by short-circuited CN30/CN31 is for PMV which was selected by settingof SW12.

ON OFF

− 223 −

O : With jumper, × : Without jumper (Cut)

2. Switching of Jumper Wire/Function

Setup Function switching setup

jumper Part type Exchange contents Initial settingat shipment

J01 OOOptional function

Operation mode selectionoperation switching

Indoor unit at not selected side is kept with waiting status.

J16 OODemand control 1 (Standardspecification)Corresponds to 2-core wire

Normal (3-core wire <Successive MAKE signal> or4-core wire <Successive MAKE or Pulse signal>)

× 2-core wire <Successive MAKE signal>

O Approx. 75% (Normal)

× The mode is changed a mode which selected the operation mode of theindoor unit at not selected side.

× Approx. 60%J04 O

Upper limit setup of demandcapacity command incorresponding indoor duringsaving operation in indoor

*4 When you replace the board with a service board, be sure to cut the jumper wire matching with the outdoorunit model to be installed. (The jumper wires J09 to J12 which were mounted at shipment from the factoryare provided to all the boards regardless of model type.)

− 224 −

Interface Board Switches and jumper wire positions to be used in the Function setupswitching table

1 3 42

SW16ON

1 2

SW30ON

1 3 42

SW17ON

1 3 42

SW11ON

1 3 42

SW12ON

1 3 42

SW13ON

1 3 42

SW14ON

1 3 42

SW06ON

1 3 42

SW07ON

1 3 42

SW09

CN30 CN31 CN32

Interface P.C.board

ON

1 3 42

SW10ON

− 225 −

8-9. Leakage/Clogging of Refrigerating Cycle CircuitList of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part(MMY-MAP0806 , 1006 , 1206 )

Clogging

Leakage

Note: “XX” represents sub-code

PartLocation of

problem(see next page)

Unit generating check code Detected fault and check code Symptom

Outdoor PMV1

A

Corresponding unit Activation of high-pressure protectionActivation of low-pressure protectionDischarge temp. error (TD1)Discharge temp. error (TD2)

P20H06P03P17

Rise of pressureFall of pressureRise of discharge temp. (compressor 1)Rise of discharge temp. (compressor 2)

Check valve in discharge pipe convergent section B Corresponding unit High-pressure protection error

High-pressure SW system errorP20P04-XX

Abnormal rise of pressure

Check valve in discharge pipe C Corresponding unit High-pressure SW system error P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuitCapillaryStrainer

DCorresponding unit Oil level detection circuit error

Oil level low detection and protectionH16-XXH07

Oil circuit error or oil level low

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu detcennoc rehtOEevlav A3VS

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCFevlav B3VS

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu detcennoc rehtOGevlav C3VS

SV3D valveSV3D valve circuit capillaryStrainer

HCorresponding unit Oil level low detection and protection H07 Oil level low

ReducerI

Corresponding unit Oil level detection circuit errorOil level low detection and protection

H16-05H07

Oil circuit errorOil level lowOil level low

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCJrotubirtsid nruter liO

rorre tiucric liO40-61Hrorre tiucric noitceted level liOtinu gnidnopserroCKyrallipac ssapyb C3VS

Part Unit generating check code Detected fault and check code Symptom

Outdoor PMV1

A

Corresponding unit Outdoor liquid backflow errorOil level low detection and protection

P13H07

Refrigerant entrapment

Other connected unit Discharge temp. error (TD1)Discharge temp. error (TD2)

P03P17

Rise of discharge temp. (compressor 1)Rise of discharge temp. (compressor 2)

Check valve in discharge pipe Bnoitces tnegrevnoc

Corresponding unit Oil level low detection and protectionCompressor breakdownCompressor error (lockup)

H07H01-XXH02-XX


Check valve in discharge pipeC


H07H01-XXH02-XX


Check valve in oil-equalization circuit

D

Corresponding unit Oil level low detection and protection H07 Excessive amount of oil(Leaking side)Insufficient amount of oil(Normal side)

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCEevlav A3VS

wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCGevlav C3VS

Location of problem

(see next page)

− 226 −

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

(SV3D) SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor



4-way valve



Fusible plug

Liquid Tank

Accumlator



Check valve

Check valve

Compressor 1

(Inverter)

Oil Header





SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

A

H

G

K

I

J

E

F

D

C

B

− 227 −

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part(MMY-MAP1406 , 1606 )

Clogging

Leakage



Outdoor PMV1, 3

A

Corresponding unit Activation of high-pressure protectionActivation of low-pressure protectionDischarge temp. error (TD1) Discharge temp. error (TD2)

P20H06P03P17















ReducerI


H16-05H07


wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCKrotubirtsid nruter liO

rorre tiucric liO40-61Hrorre tiucric noitceted level liOtinu gnidnopserroCLyrallipac ssapyb C3VS


Outdoor PMV1

A


P13H07


Other connected unit Discharge temp. error (TD1) Discharge temp. error (TD2)

P03P17




H07H01-XXH02-XX




H07H01-XXH02-XX



D




Location of problem

(see next page)

Location of problem

(see next page)

− 228 −

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumlator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP

Sub cool heat exchange

Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

H

G

K

I

J

E

F

D

C

B A

Outdoor Unit (14，16HP)Model： MMY-MAP1406*，MMY-MAP1606*

− 229 −

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part(MMY-MAP1806 , MAP2006∗ and MAP2206∗)

Clogging

Leakage



Outdoor PMV1, 3

A

Corresponding unit Activation of high-pressure protectionActivation of low-pressure protectionDischarge temp. error (TD1) Discharge temp. error (TD2)

P20H06P03P17















ReducerI


H16-05H07


wol level liO70Hnoitcetorp dna noitceted wol level liOtinu gnidnopserroCKrotubirtsid nruter liO

rorre tiucric liO40-61Hrorre tiucric noitceted level liOtinu gnidnopserroCLyrallipac ssapyb C3VS


Outdoor PMV1

A


P13H07


Other connected unit Discharge temp. error (TD1) Discharge temp. error (TD2)

P03P17




H07H01-XXH02-XX




H07H01-XXH02-XX



D




Location of problem

(see next page)

Location of problem

(see next page)

− 230 −

Outdoor Unit (18，20，22HP)Model： MMY-MAP1806*，MMY-MAP2006*，MMY-MAP2206*

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42)

(SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumlator

Liquid Tank

Oil Header




Fusible plug

FP




SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

A

H

G

K

I

J

E

F

D

C

B

− 231 −

8-10. Sensor CharacteristicsOutdoor Unit

Temperature sensor characteristics

Temperature [°C]

-20-15-10-505

101520253035404550556065707580

Resistance [kΩ]

Temperature [°C] Resistance [kΩ]

102.976.657.844.033.826.120.416.013.010.08.06.45.24.23.52.82.31.91.61.41.1

05

101520253035404550556065707580859095

100105110115120

162.2125.8

98.377.561.549.139.532.026.121.417.614.612.110.28.57.26.15.24.53.83.32.92.52.21.9

Outdoor TD1,TD2,TK1,TK2,TK4 and TK5 sensors

Resistance[kΩ]

(10 °C or below) Resistance[kΩ]

(10 °C or above)

Resistance[kΩ]

(10 °C or below)

Resistance[kΩ]

(10 °C or above)

10

15

25

5

20

010 20 30 40 50 60 70-10 0

Temperature [°C]80 90 100-20-30

100

150

50

33.8kΩ

49.1kΩ

10.0kΩ

3.3kΩ

200

Temperature [°C]

200

0

10

20

5

15

040302010 70 80 90 100 110 120 13050 60

100

150

50

0

Outdoor TS1, TS3, TE1, TE2, TL1, TL2, TL3 and TO sensors

Temperature [°C]

-20-15-10-505

101520253035404550556065707580

Resistance [kΩ]

98.974.156.142.833.025.620.015.812.510.08.06.55.34.43.63.02.52.11.71.51.3

Resistance[kΩ]

(10 °C or below) Resistance[kΩ]

(10 °C or above)10

15

25

5

20

0-10 0 10 20 30 40 50 60 70

Temperature [°C]80 90 100-30 -20

100

150

50

33.0kΩ

10.0kΩ

200

0

Outdoor TG1 and TG2 sensors

− 232 −

Outdoor Unit

Pressure sensor characteristics• Input/output wiring summary

• Output voltage vs. pressure

Indoor Unit

Temperature sensor characteristics

Pin No.High pressure side (Pd) Low pressure side (Ps)

Input/output name Lead wire color Input/output name Lead wire color

1 OUTPUT White — —

2 — — OUTPUT White

3 GND Black GND Black

4 +5V Red +5V Red

)sP( edis erusserp woL)dP( edis erusserp hgiH

0.5~4.5V0~3.92MPa

0.5~3.5V0~0.98MPa

1.574.189.00

0.5

3.5

5Lo

w p

ress

ure-

side

out

put v

olta

ge (

V)

)aPM( erusserP4.15 3.92

Pressure (MPa)

4.5

4.73

0.5

0 Hig

h pr

essu

re-s

ide

outp

ut v

olta

ge (V

)

05

1015202530354045505560

33.826.120.416.012.610.08.06.45.24.23.52.82.3

Temperature [°C]

Indoor TA(TSA), TRA,TF(TFA) sensor

Resistance[kΩ]

Temperature [°C]6010 20 30 40 50

20

30

10

0

Resistance [kΩ]

− 233 −

-20-15-10-505

101520253035404550556065707580859095

100

98.373.755.842.632.825.520.015.712.510.08.16.55.34.43.63.02.52.11.71.51.21.10.90.80.7

-20-15-10-505

101520253035404550556065707580

102.976.657.744.038.826.120.416.012.610.08.06.45.24.23.52.82.31.91.61.41.2

Temperature [°C]

10

15

5

20

0-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

100

150

50

200

0

10

15

5

20

0-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

100

150

50

200

0

Resistance[kΩ]

(10°C or beiow)

Resistance[kΩ]

(10°C or above)

Resistance[kΩ]

(10°C or beiow)

Resistance[kΩ]

(10°C or above)

Temperature [°C]

Temperature [°C]

Indoor TC1 sensor

Indoor TC2 and TCJ, TOA sensor

Resistance [kΩ]

Temperature [°C] Resistance [kΩ]

− 234 −

8-11. Pressure Sensor Output CheckOutdoor Unit

Pd sensor characteristics0 to 4.41 MPa (0.5 to 4.73V output for 0 to 4.15 MPa)Voltage readings across pins 2 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3)

0.000.020.040.060.080.100.120.140.160.180.200.220.230.250.270.290.310.330.350.370.390.410.430.450.470.490.510.530.550.570.590.610.630.650.660.680.700.720.740.760.780.800.820.840.860.880.900.920.940.960.98

0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.010.030.050.070.080.100.120.140.160.180.200.220.240.260.280.300.310.330.350.370.390.410.430.450.47

0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.30.50.70.91.11.31.41.61.82.02.22.42.62.83.03.23.43.63.84.04.24.44.64.8

VOLT Pd(MPa)

Pd(kg/cm2) (kg/cm2) (kg/cm2) (kg/cm2) (kg/cm2)

1.001.021.041.061.071.091.11 1.131.151.171.191.211.231.251.271.291.311.331.351.371.391.411.431.451.471.481.501.521.541.561.581.601.621.641.661.681.701.721.741.761.781.801.821.841.861.881.901.911.931.951.97

0.490.510.530.540.560.580.600.620.640.660.680.700.720.740.760.770.790.810.830.850.870.890.910.930.950.970.991.001.021.041.061.081.101.121.141.161.181.201.211.231.251.271.291.311.331.351.371.391.411.431.44

5.05.25.45.55.75.96.16.36.56.76.97.17.37.57.77.98.18.38.58.78.99.19.39.59.69.8

10.010.210.410.610.811.0 11.2 11.4 11.6 11.8 12.012.212.412.612.813.013.213.413.613.813.914.114.314.514.7

VOLT Pd(MPa)

Pd

1.992.012.032.052.072.092.11 2.132.152.172.192.212.232.252.272.292.312.322.342.362.382.402.422.442.462.482.502.522.542.562.582.602.622.642.662.682.702.722.732.752.772.792.812.832.852.872.892.912.932.952.97

1.461.481.501.521.541.561.581.601.621.641.661.671.691.711.731.751.771.791.811.831.851.871.891.901.921.941.961.982.002.022.042.062.082.102.122.132.152.172.192.212.232.252.272.292.312.332.352.362.382.402.42

14.915.115.315.515.715.916.116.316.516.716.917.117.317.517.717.918.018.218.418.618.819.019.219.419.619.820.020.220.420.620.821.021.221.421.621.822.022.222.322.522.722.923.123.323.523.723.924.124.324.524.7

VOLT Pd(MPa)

Pd

2.993.013.033.053.073.093.11 3.133.153.163.183.203.223.243.263.283.303.323.343.363.383.403.423.443.463.483.503.523.543.563.573.593.613.633.653.673.693.713.733.753.773.793.813.833.853.893.893.913.933.953.97

2.442.462.482.502.522.542.562.572.592.612.632.652.672.692.712.732.752.772.792.802.822.842.862.882.902.922.942.962.983.003.023.033.053.073.093.11 3.133.153.173.193.213.233.253.263.283.303.323.343.363.383.40

24.925.125.325.525.725.926.126.326.426.626.827.027.227.427.627.828.028.228.428.628.829.029.229.429.629.830.030.23.0430.530.730.931.131.331.531.731.932.132.332.532.732.933.133.333.533.733.934.134.334.534.7

VOLT Pd(MPa)

Pd

3.984.004.024.044.064.084.104.124.144.164.184.204.224.244.264.284.304.324.344.364.384.404.414.434.454.474.494.514.534.554.574.594.614.634.654.674.694.714.73

3.423.443.453.483.493.513.533.553.573.593.613.633.653.673.693.703.723.743.763.783.803.823.843.863.883.903.923.933.953.973.994.014.034.054.074.094.11 4.134.15

34.835.035.235.435.635.836.036.236.436.636.837.037.237.437.637.838.038.238.438.638.838.939.139.339.539.739.940.140.340.540.740.941.141.341.541.741.942.142.3

VOLT Pd(MPa)

Pd

− 235 −

Outdoor UnitPs sensor characteristics

0 to 1.47 MPa (0.5 to 5V output for 0 to 1.47 MPa)Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3)

0.000.020.040.060.080.100.120.140.160.180.200.220.230.250.270.290.310.330.350.370.390.410.430.450.470.490.510.530.550.570.590.610.630.650.660.680.700.720.740.760.780.800.820.840.860.880.900.920.940.960.98

0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.010.020.020.030.030.040.050.050.060.070.070.080.090.090.100.11 0.11 0.121.120.130.140.140.150.16

0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.20.20.30.40.40.50.50.60.70.70.80.90.91.01.11.11.21.31.31.41.51.51.6

VOLT Ps Ps

1.001.021.041.061.071.091.11 1.131.151.171.191.211.231.251.271.291.311.331.351.371.391.411.431.451.471.481.501.521.541.561.581.601.621.641.661.681.701.721.741.761.781.801.821.841.861.881.901.911.931.951.97

0.160.170.180.180.190.190.200.210.210.220.230.230.240.250.250.260.260.270.280.280.290.300.300.310.320.320.330.340.340.350.350.360.370.370.380.390.390.400.410.410.420.420.430.440.440.450.460.460.470.480.48

1.71.71.81.81.92.02.02.12.22.22.32.42.42.52.62.62.72.82.82.93.03.03.13.23.23.33.33.43.53.53.63.73.73.83.93.94.04.14.14.24.34.34.44.54.54.64.64.74.84.84.9

VOLT Ps Ps

1.992.012.032.052.072.092.11 2.132.152.172.192.212.232.252.272.292.312.322.342.362.382.402.422.442.462.482.502.522.542.562.582.602.622.642.662.682.702.722.732.752.772.792.812.832.852.872.892.912.932.952.97

0.490.490.500.510.510.520.530.530.540.550.550.560.560.570.580.580.590.600.600.610.620.620.630.640.640.650.650.660.670.670.680.690.690.700.710.710.720.720.730.740.740.750.760.760.770.780.780.790.790.800.81

5.05.05.15.25.25.35.45.45.55.65.65.75.85.85.96.06.06.16.16.26.36.36.46.56.56.66.76.76.86.96.97.07.17.17.27.37.37.47.47.57.67.67.77.87.87.98.08.08.18.28.2

VOLT Ps Ps

2.993.013.033.053.073.093.11 3.133.153.163.183.203.223.243.263.283.303.323.343.363.383.403.423.443.463.483.503.523.543.563.573.593.613.633.653.673.693.713.733.753.773.793.813.833.853.893.893.913.933.953.97

0.810.820.830.830.840.850.850.860.860.870.880.880.890.900.900.910.920.920.930.940.940.950.950.960.970.970.980.990.991.001.011.011.021.021.031.041.041.051.061.061.071.081.081.091.091.101.11 1.11 1.121.131.13

8.38.48.48.58.68.68.78.88.88.98.99.09.19.19.29.39.39.49.59.59.69.79.79.89.99.9

10.010.110.110.210.210.310.410.410.510.610.610.710.810.810.911.0 11.0 11.1 11.2 11.2 11.3 11.4 11.4 11.5 11.5

VOLT Ps Ps

3.984.004.024.044.064.084.104.124.144.164.184.204.224.244.264.284.304.324.344.364.384.404.414.434.454.474.494.514.534.554.574.594.614.634.654.674.694.714.734.754.774.794.814.824.844.864.884.904.924.944.964.98

1.141.151.151.161.171.171.181.181.191.201.201.211.221.221.231.241.241.251.251.261.271.271.281.291.291.301.311.311.321.321.331.341.341.351.361.361.371.381.381.391.391.401.411.411.421.431.431.441.451.451.461.47

11.6 11.7 11.7 11.8 11.9 11.9 12.012.112.112.212.312.312.412.512.512.612.712.712.812.912.913.013.013.113.213.213.313.413.413.513.613.613.713.813.813.914.014.014.114.214.214.314.314.414.514.514.614.714.714.814.914.9

VOLT Ps Ps(MPa) (kg/cm2) (kg/cm2) (kg/cm2) (kg/cm2) (kg/cm2)(MPa) (MPa) (MPa) (MPa)

− 236 −

This product offers backup modes of operation to tide over certain emergency situations. If a fault occurs in one of the compressors, it is possible to operate the system on an emergency basis by operating only the remaining compressor, (compressor backup operation).If one of the outdoor units fails in a combined outdoor unit system, the system can be operated on an emergency basis by keeping only the remaining outdoor unit(s), (outdoor unit backup operation).Perform backup operation setting in accordance with the procedure described below.

The method of backup operation differs according to the contents of fault as shown in the table below.

Note 1: If the compressor has failed due to a fault in its motor coil (e.g. a layer short-circuit), do not perform compressor backup operation because of severe oil degradation. It could damage other outdoor units.

Note 2: Keep the number of backed-up outdoor units under compressor backup operation to one in the system (single refrigerant line). As for MMY-MAP1806*, MMY-MAP2006* and MMY-MAP2206, the backup operation of compressor cannot be done.

Note 3: Keep the number of backed-up outdoor units under outdoor unit backup operation to one in the system (single refrigerant line).

Note 4: It is prohibited to combine compressor backup operation and outdoor unit backup operation.

Note 5 : When the chassis of different size are combined,do not perform back up oueration with the large size chassis.

ukcab fo dohteMtluaf fo stnetnoC p operation Setting procedure

.2-9 ot oG)2 etoN ees( pukcab rosserpmoC)1 etoN ees( sliaf tinu emas eht ni srosserpmoc eht fo enO

-gnilooc ro pukcab tinu roodtuOliaf tinu emas eht ni srosserpmoc eht llAseason outdoor unit backup (see Notes 1, 3, 4 and 5)

Go to 9-3. or 9-4.

A fault occurs in a compressor motor coil (e.g. a layer short-circuit)

A fault occurs in a refrigerating cycle part, fan or related part, or electrical part

A fault occurs in a temperature sensor or pressure sensor

9 BACKUP OPERATION(EMERGENCY OPERATION)

9-1. Note for Backup Operation

Faul

ty

Faul

ty

Prohibited

Example

Backed-up compressor Backed-up compressor

Faulty Faulty

Prohibited

Example

Backed-up outdoor unit Backed-up outdoor unit

Faulty

Prohibited

Example

Backed-up outdoor unit

Faul

ty

Backed-up compressor

Faulty

Prohibited

Example


MMY-MAP1806* (MMY-MAP2006*)

MMY-MAP1606*

Prohibited

Example


MMY-MAP1406* MMY-MAP1206*(MMY-MAP1606*)

Faulty

− 237 −

9-2. Compressor Backup Operation Setting<Outline>If a fault occurs to one of the compressors installed in outdoor unit, follow the procedure described below to back up the faulty compressor by using the remaining, normal compressor.

<Work Procedure>(1) Turn off the power supply to all the outdoor units connected to the system.(2) Set the DIP switches of SW06, provided on the interface P.C. board of the outdoor unit with the faulty

compressor, as shown in the table below.

SW06

Bit 1 Bit 2 Bit 3 Bit 4

FFOFFOFFOFFOgnittes tluafed yrotcaF

When compressor No.1 (front left) is faulty ON OFF OFF OFF

When compressor No.2 (front right) is faulty OFF ON OFF OFF

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

− 238 −

(3) Change the connection of wiring between Comp-IPDU and Fan-IPDU, as shown in the below.

Outdoor Unit (8, 10, 12, 14, 16, 18HP) Model: MMY-MAP0806*, MAP1006*, MAP1206*, MAP14B6*, MAP1406*, MAP1606*, MAP18B6* 1.When compressor No.1 (front left) is faulty：No change the connection of wiring 2.When compressor No.2 (front right) is faulty：

Change the connection of wiring between Comp-IPDU and Fan-IPDU as shown in the below.

CN21

CN23

CN21

CN23

CN21

CN23

CN21

CN23

Change the connection of wiring which is connected to the CN21, 23 of Comp-IPDU2 ・Change to CN21 of Comp-IPDU1 from CN21 of Comp-IPDU2 ・Change to CN23 of Comp-IPDU2 from CN23 of Comp-IPDU2


Ex. MMY-MAP0806*, MAP1006*, MAP1206*, MAP14B6*

Ex. MMY- MAP1406*, MAP1606*, MAP18B6*

− 239 −

Outdoor Unit (18, 20, 22HP) Model: MMY-MAP1806*, MAP2006*, MAP2206* 1.When compressor No.1 (front left) is faulty：

Change the connection of wiring between Comp-IPDU and Fan-IPDU as shown in the below.

2.When compressor No.2 (front right) is faulty： Change the connection of wiring between Comp-IPDU and Fan-IPDU as shown in the below.

CN22

CN23

CN21

CN23


(Tighten two wirings together with screw terminal)


(Tighten two wirings together with screw terminal)

CN22

CN23

CN21

CN23

(4) Turn on the power supply to all the units connected to the system.

This is the end of compressor backup operation setting.

− 240 −

<Outline>This product allows outdoor unit backup operation setting to be performed either at the header unit or a follower unit. If any of the fault modes specified below occurs to one of the outdoor units in a multi-outdoor unit system, proceed with outdoor unit backup operation.• A compressor failure (e.g. a layer short-circuit or a compressor failure in which no compressor is available to

back up the faulty compressor)• A failure of a pressure sensor (Pd or Ps) or a temperature sensor (TD1, TD2, TS1, TS3, TE1, TE2, TG1, TG2,

TK1, TK2, TK4, TK5, TL1, TL2 or TL3)Note: Keep the number of backed-up outdoor units to one in the system (single refrigerant line).

<Work procedure>(1) Turn off the power supply to all the indoor and outdoor units connected to the system.[Setup of failed follower outdoor unit](2) Fully close the gas pipe service valve of the failed outdoor unit.(3) Leave the service valves of the liquid and balance pipe fully open (to prevent refrigerant stagnation in the unit).

However, if there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve.(4) <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>

From this point on, keep the power supply to the failed unit off.<In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)>Disconnect the connector [CN03] for outdoor-outdoor communication (BUS2) provided on the interface P.C. board.

[Setup of header unit](5) Turn on Bit 2 of SW09 on the interface P.C. board of the header unit.

(Setting to prevent connected indoor units capacity over error. (E16))

Setup of failed follower outdoor unit

(2)

(3)

(4)

CN

03B

US

2

Fully close gas pipe service valve.

Leave service valves of liquid and balance pipes fully open.(if there is leakage from outdoor PMV, fully close liquid pipe.)

In case of fault in refrigerating circuit or related part, disconnect BUS2 communication connector [CN03] on interface P.C. board.

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

Interface P.C. board of header unit

(5)

Turn on Bit 2 of SW09.

9-3. Outdoor Unit Backup Operation Setting

9-3-1. Follower outdoor unit backup operation setting (failure of follower outdoor unit)

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(6) Turn on the power supply to all the units connected to the system other than the failed follower unit.Determine what to do with the power supply to the failed follower unit in the following manner.<In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>Leave the power supply off.<In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)>Turn on the power supply to protect the compressor (by turning on the case heater). (When the power supply to the unit is turned on, [E19] (error in the number of outdoor header units) will be displayed on the 7-segment display. However, this will not cause any problems.)

(7) Perform settings needed to gain permission for backup operation from the header unit (error clearance).1) Set SW01/02/03 on the interface P.C. board to 1/1/1 and confirm that [U1] [E26] (dropping out of an outdoor

unit) is displayed on the 7-segment display.2) Set SW01/02/03 on the interface P.C. board to 2/16/1. Upon confirming that [Er] [… … …] is displayed on

the 7-segment display, press SW04 and hold for 5 seconds or more.3) [Er] [… CL] (error clearance completed) will be displayed on the 7-segment display.4) Set SW01/02/03 back to 1/1/1. (The display should change to [U1] [– – –].)

This is the end of follower outdoor unit backup operation setting. Check the operation.

Push switch

7-segment display

Rotary switches

Interface P.C. board of header unit

(7)Set SW01/02/03 to 1/1/1[U1] [E26] will be displayed.

Set SW01/02/03 to [2/16/1].[Er] [… … …] will be displayed.

Press SW04 and hold for 5 seconds or more[Er] [… CL] will be displayed.

Set SW01/02/03 back to 1/1/1.[U1] [– – –] will be displayed.

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9-3-2. Header outdoor unit backup operation setting(failure of header outdoor unit)

<Work procedure>(1) Turn off the power supply to all the units connected to the system at the source.[Setup of failed header outdoor unit](2) Fully close the gas pipe service valve of the failed outdoor unit.(3) Leave the service valves of the liquid and balance pipes fully open (to prevent refrigerant stagnation in the failed

outdoor unit). However, if there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve.

(4) <In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>From this point on, keep the power supply to the failed unit off.<In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cycle part, or fan system part)>Disconnect the connector [CN03] for outdoor-outdoor communication (BUS2) provided on the interface P.C. board.

[Selection of new header unit](5) Select a new header unit from the follower units on the basis of the following criteria:• If only one follower unit is connected, select it as the header unit.• If two follower units are connected, select the follower unit that is nearest to the failed header unit.[Setup of new header unit](6) Set SW13 and SW14 on the interface P.C. board same as the setting of failed header unit (refrigerant line

address setting).(7) Turn on Bit 2 of SW09 on the interface P.C. board. (Setting to prevent connected indoor unit capacity over error.

(E16))

Setup of failed follower outdoor unit

(2)

(3)

(4)

CN

03B

US

2

Fully close gas pipe service valve.

Leave service valves of liquid and balance pipes fully open.(if there is leakage from outdoor PMV, fully close liquid pipe.)

In case of fault in refrigerating circuit or related part, disconnect BUS2 communication connector [CN03] on interface P.C. board.

− 243 −

(8) Set Bits 1 and 2 of SW30 on the interface P.C. board same as that of the failed header unit (terminatorresistance setting).

[Wiring changes to communication line](9) Redirect the indoor-outdoor communication line connected to the failed header unit [U1/U2] to the unit selected

as the header unit [U1/U2].(10)If a central control device is connected, connect the central control communication line [U3/U4] to the

communication line terminal of the unit selected as the new header unit [U3/U4], and connect up the tieconnector between the [U1/U2] and [U3/U4] terminals.

(11)Turn on the power supply to all the units connected to the system other than the failed unit.Determine what to do with the power supply to the failed unit in the following manner.<In case of fault in compressor, electrical part, I/F P.C. board, or IPDU P.C. board>Leave the power supply off.<In case of fault in refrigerating circuit or related part (pressure sensor, temperature sensor, refrigerating cyclepart, or fan system part)>Turn on the power supply to protect the compressor (by turning on the case heater).(When the power supply to the unit is turned on, [E19] (error in the number of outdoor header units) will be displayed on the 7-segment display. However, this will not cause any problems.)

This is the end of header outdoor unit backup operation setting. Check the operation.

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

(6)

Outdoor interface P.C. board of unit selected as new header unit

(7)Turn on Bit 2 of SW09.

Set SW13 and SW14 identically to failed header unit.

(10)

Failed header unit

Outdoor-outdoor communication line (U5/U6)

(9)Redirect the indoor-outdoor communication line from failed header unit to unit selected as header unit [U1/U2].

If central control device is connected, redirect central control communication line from failed header unit to unit selected as new header unit [U3/U4].

Unit selected as new header unit (previously follower unit No. 1)

Central control communication line (U3/U4 terminal)

Indoor-outdoor communication line (U1/U2 terminal)

Follower unit No. 2

(8) Set Bits 1 and 2 of SW30 identically to failed header unit.

− 244 −

9-4. Cooling-Season Outdoor Unit Backup Operation Setting

<Outline>Limited to summer and other situations where there is no need for heating operation, this function makes it possible to get backup operation up and running quickly without going through the normal setup procedure, regardless of which type of outdoor unit has failed, the header unit or a follower unit.In this backup operation, the system behaves in exactly the same way as described in the “Outdoor Unit Backup Operation Setting” section, except that it cannot perform heating operation.Note 1: When the system is set up for this function, heating operation is not available.

("HEATING STANDBY" displayed on the remote controller.)Note 2: If the unit failure has been caused by a fault in the interface P.C. board or electric circuit, this function is

not available. In that case, follow the procedure specified in the “Outdoor Unit Backup Operation Setting” section.

<Work procedure>(1) Turn off the power supply to all the units connected to the system.[Setup of failed outdoor unit]Regardless of whether the failed outdoor unit is the header unit or a follower unit, there is no difference in the setup procedure.(2) Turn on Bits 1 and 2 of SW06 provided on the interface P.C. board.(3) If there is a leakage from an outdoor PMV (unable to close), fully close the liquid pipe service valve.(4) Turn on the power supply to all the units connected to the system.

If the fault involves poor insulation of a compressor motor, remove the compressor leads before the power is turned on.

This is the end of cooling-season outdoor unit backup operation setting.

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

Turn on Bits 1 and 2 of SW06.

− 245 −

This product supports refrigerant pump-down, a function which allows refrigerant to be recovered from an outdoor unit in need of repair using a normal outdoor unit in a system featuring multiple outdoor units.

When performing pump-down operation, take note of the following matters: Note 1: The pump-down refrigerant recovery rate changes with outside temperature and other factors.

After pump-down is completed, recover any residual gas using a refrigerant recovery device, etc., and be sure to measure the amount of recovered refrigerant. (The refrigerant recovery rate can be improved by heating the accumulator of the outdoor unit to be repaired during pump-down operation.)

Note 2: If pump-down has been performed, the system cannot be operated until the faulty outdoor unit is repaired.(Continued operation would be impossible due to a refrigerant overcharge.)

Note 3: If outdoor PMVs 1 and 3 both happen to be faulty (unable to open) the refrigerant in the heat exchangers cannot be recovered. In that case, recover any residual gas in the heat exchangers using a tube piercing valve or some other tool. After a pump-down operation, do not perform any brazing until the residual gas in the heat exchangers is recovered.

<Work procedure>Turn on the power supply to the system at the source, but leave the system switched off.If the fault involves poor insulation of a compressor motor, remove the motor leads before the power is turned on.[Setup of failed outdoor unit](1) Connect the check joint of liquid pipe and the low pressure-side check joint using a charge hose, and purge the

hose of air (to recover refrigerant from the liquid tank and heat exchangers).(2) Fully close the liquid pipe service valve of the failed outdoor unit.

(Leave the service valves of the gas and balance pipes fully open.)(3) If the oil is likely to has degraded due to a compressor fault, disconnect the SV3A valve connector of the failed

outdoor unit (to prevent the degraded oil from flowing into other outdoor units).(4) Set SW01/02/03 on the interface P.C. board of the failed outdoor unit to 2/11/1. After [rd] [… … …] is displayed

on the 7-segment display, press SW04 and hold for 5 seconds or more.

10 OUTDOOR UNIT REFRIGERANTRECOVERY METHOD

10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

10-1-1. Note for refrigerant recovery operation

10-1-2. Refrigerant recovery procedure A (Case of no outdoor unit backup operation setting)

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(5) [rd] [… FF] will be displayed on the 7-segment display, and pump-down operation will start.* To put the operation on hold midway, turn off the power supply to all the outdoor units, or press SW05 on the

interface P.C. board.

(6) Approx. 10 minutes after the system starts up, fully close the gas pipe service valve of the failed outdoor unit.(7) Press SW04 of the failed outdoor unit to have pressure data (MPa) displayed.

(The display switches each time SW04 is pressed.)Display Example

[Selection of outdoor unit for pressure adjustment](8) Of all outdoor units operating in the pump-down mode, select the one with the lowest unit No. as an outdoor

unit for pressure adjustment.

Identifying Unit No.The unit No. is the number displayed on the 7-segment display when SW01/02/03 are set to 1/1/1.([U#] [– – –]: # represents the unit No.)

[Setup of outdoor units other than unit for pressure adjustment and failed unit](9) Leaving the balance pipes of the unit for pressure adjustment and the failed unit fully open, fully close the

balance pipe service valves of all other outdoor units.[Setup of outdoor unit for pressure adjustment](10)Set SW01/02/03 on the interface P.C. board of the outdoor unit for pressure adjustment to 1/2/2.(11)As the low-pressure sensor output is displayed on the 7-segment display, adjust the pressure to around 0.12

MPa by slowly closing the gas pipe service valve, with checking pressure data.(12)Compare the low-pressure sensor outputs of the failed unit with that of the unit for pressure adjustment, and

wait until the two pressure readings become almost the same. After letting the system continue operating fora while longer, fully close the gas pipe service valve of the unit for pressure adjustment.

Failed outdoor unitHeader unit

Interface P.C. board of failed outdoor unit

(3)Connect liquid pipe check joint and low pressure-side check joint using charge hose, and purge hose of air

Fully close liquid pipe service valve.(Leave service valves of gas and balance pipes fully open.)

If oil has degraded due to compressor fault, undo SV3Avalve connector.

(4) Set SW01/02/03 to 2/11/1.[rd] [… … …] is displayed.

Press SW04 and hold for 5 seconds or more.(5) [rd] [ FF] is displayed (pump-down operation starts).Behavior during pump-down operationOutdoor unit Behavior

Failed outdoor unit

Compressors: Turned off Outdoor fan: OnPMV1, PMV3 and PMV4: Open SV2/3A/3B/3C/3D: On SV41/42/52: On

Every other outdoor unit Operates in test coolingoperation mode

[rd] […11]Initial display

[Pd] [1.20]High-pressure sensor output

[Ps] [1.20]Low-pressure sensor output

− 247 −

[Setup of failed outdoor unit](13)When the low-pressure sensor output of the failed outdoor unit falls below 0.10MPa, fully close the balance

pipe packed valve, and press SW05 on the interface P.C. board to finish the pump-down operation.(14)Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unit using

a refrigerant recovery device. Be sure to measure the amount of recovered refrigerant. (This is necessary todetermine how much additional refrigerant will be needed after the completion of the repair.)

This is the end of the refrigerant recovery operation.Set SW01/02/03 of the failed outdoor unit and the outdoor unit for pressure adjustment back to 1/1/1.

Failed outdoor unitUnit for pressure adjustment

(9)(6)

(11)

(12)

(14)

(13)

Approx. 10 minutes after system startup, fully close gas pipe service valve.

(8)Select outdoor unit with lowest unit No. as outdoor unit for pressure adjustment.

Fully close balance pipes of all outdoor units other than unit for pressure adjustment and failed unit.

While monitoring low-pressure sensor output, adjust pressure to around 0.12 MPa by slowly closing gas pipe service valve.

When low-pressure sensor output of failed outdoor unit falls below 0.10 MPa, fully close balance pipe packed valve.Press SW05 to finish pump-down operation.

Turn off power supply to all outdoor units at source, and recover residual refrigerant in outdoor unit using refrigerant recovery device. Measure amount of recovered refrigerant.

Wait until low-pressure sensor outputs of failed outdoor unit and outdoor unit for pressure adjustment become almost identical, and, after letting system continue operating for while longer,fully close gas pipe service valve.

(7)Press SW04 to have low-pressure sensor output displayed[Ps] [###]

(10)Set SW01/02/03 to 1/2/2 to have low-pressure sensor output displayed.[Ps] [###]

− 248 −

10-1-3. Refrigerant recovery procedure B (Case of outdoor unit backup operation setting)

<Outline>If outdoor unit backup operation setting is performed, use an alternative refrigerant recovery procedure as described below, provided that the power cannot be turned on for the failed outdoor unit. (Refrigerant will be recovered from the failed outdoor unit using the test cooling operation function.)Note 1: If cooling-season outdoor unit backup operation or outdoor unit backup operation is in progress with the

power supply to the failed outdoor unit turned on, follow the procedure described in “10-1-2. Refrigerantrecovery procedure A (Case of no outdoor unit backup operation setting)”. If outdoor unit backupoperation setting is performed with the power supply to the failed outdoor unit turned on, recoveryoperation can only start after putting the outdoor-outdoor communication connector on the interface P.C. board of that unit [CN03] back to its initial state and resetting the power supply.

Note 2: If the power cannot be turned on the failed outdoor unit, the solenoid valves and PMVs of the unit cannotbe turned on, so that it reduces the amount of recovered refrigerant compared to a standard pump-downoperation. Recover the residual gas in the unit using a refrigerant recovery device, and be sure to measure the amount of recovered refrigerant.

<Work procedure>[Setup of failed outdoor unit](1) Connect the liquid pipe check joint and the low pressure-side check joint using a gauge manifold, and purge the

manifold of air (to recover refrigerant from the liquid tank and heat exchangers).(2) Fully close the liquid pipe packed valve of the failed outdoor unit.

(Leave the service valve of the gas pipe and the packed valve of the balance pipe fully open.)[Setup of unit selected as header unit (hereafter “header outdoor unit”)](3) Set SW01/02/03 on the interface P.C. board of the header outdoor unit to 2/5/1. After [C. ] [… … …] is displayed

on the 7-segment display, press SW04 and hold for 5 seconds or more.(4) After [C. …] [… – C] is displayed on the 7-segment display, the system starts operating in the test cooling

operation mode.(5) Set SW01/02/03 on the interface P.C. board of the header outdoor unit to 1/2/2 to have the low-pressure sensor

output (MPa) displayed on the 7-segment display.

(6) Approx. 10 minutes after the system starts up, fully close the gas pipe service valve of the failed outdoor unit.[Selection of outdoor unit for pressure adjustment](7) Select the header unit as the unit for pressure adjustment.

(1)

(2)

Pd Ps Td1 Td2 TS1 TE1 TE2 C~C

Connect liquid pipe check joint and low pressure-side check joint using gauge manifold, and purge manifold of air.

Failed outdoor unit Unit selected as header unit


Fully close liquid pipe service valve.(Leave gas and balance pipes fully open.)

(3) Set SW01/02/03 to 2/5/1.[C. ] [… … …] is displayed

(4) Press SW04 and hold for 5 seconds or more.[C. …] [… – C] is displayed. (Test coolingoperation begins).

(5) Set SW01/02/03 to 1/2/2 to have low-pressuresensor output (MPa) displayed.Press SW04 to have low-pressure sensor output displays.

− 249 −

[Setup of outdoor units other than header unit and failed unit](8) Leaving the balance pipes of the unit for pressure adjustment and the failed unit fully open, fully close the

balance pipe packed valves of all other outdoor units.[Setup of header unit](9) While monitoring the low-pressure sensor output, adjust the pressure to around 0.12 MPa by slowly closing the

gas pipe service valve.(10)Compare the manifold gauge pressure of the failed unit with the low-pressure sensor output of the header unit,

and wait until the two pressure readings become almost identical. After letting the system continue operatingfor a while longer, fully close the gas pipe service valve of the unit for pressure adjustment.

[Setup of failed outdoor unit](11)When the manifold gauge pressure of the failed outdoor unit falls below 0.10 MPa, fully close the balance pipe

packed valve, and press SW05 on the interface P.C. board to finish the test cooling operation.(12)Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unit using

a refrigerant recovery device. Be sure to measure the amount of recovered refrigerant. (This is necessary todetermine how much additional refrigerant will be needed after the completion of the repair.)

This is the end of the refrigerant recovery operation.Set SW01/02/03 of the header unit back to 1/1/1.

(8)(6) (7)

(9)

(10)

(12)

(11)

Approx. 10 minutes after system startup, fully close gas pipe service valve.

Select header unit as unit for pressure adjustment.

Fully close balance pipes of all other outdoor units other than unit for pressure adjustment and failed unit.

Header unit (outdoor unit selected as such)

Wait until low-pressure sensor outputs of failed outdoor unit and outdoor unit for pressure adjustment become almost identical, and, after letting system continue operating for while longer, fully close gas pipe service valve.

While monitoring low-pressure sensor output, adjust pressure to around 0.12 MPa by slowly closing gas pipe service valve.

Turn off power supply to all outdoor units at source, and recover residual refrigerant in outdoor unit using refrigerant recovery device. Measure amount of recovered refrigerant.

When manifold gauge pressure of failed outdoor unit falls below 0.10 MPa, fully close balance pipe packed valve.Press SW05 to finish test cooling operation.

Failed outdoor unit

− 250 −

10-2. How to Operate System While Failed Outdoor Unit Being Repaired

<Outline>After refrigerant is recovered from the failed outdoor unit through a pump-down operation, the overall amount of refrigerant held by the system becomes excessive, and this makes it impossible to operate the remaining outdoor units even though they are not faulty. However, operation is still possible if the system-wide amount of refrigerant is adjusted in accordance with the procedure described below.

<Work procedure>(1) Follow the steps specified in “10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)”.(2) Adjust the amount of refrigerant held by the system by removing some of it using a refrigerant recovery device,

etc.Determine the amount of refrigerant to be removed according to the capacity of the failed outdoor unit. (See the table below.)

Example: If you are under repairing of a 16HP outdoor unit in the 50HP system(combination of outdoor unit: 18HP + 16HP + 16HP):Amount of refrigerant to be remove from this system = 11 kg

(3) Set up the outdoor unit from which refrigerant has been recovered in the manner described in “9-3. Outdoor Unit Backup Operation Setting”.This completes the procedure.

Capacity code of outdoor unit under repair Removal amount of refrigerant[HP] [kg]

8 810 812 1014 10.516 1118 1320 1322 13

− 251 −

10-3. Work procedure after RepairWhen vacuuming in the repaired outdoor unit, follow the procedure described below.

<Work procedure>(1) Fully open PMV1 and PMV3 (MMY-MAP1406∗ to 2206∗ only) in accordance with the table below. Note: PMV full-opening operation via short-circuiting of the CN30 pins is automatically undone after 2 minutes,

causing the valves to fully close. To maintain fully open state, turn off the power switch of the outdoor unit within 2 minutes of the short-circuiting of the CN30 pins.

(2) Be sure to perform vacuuming in from the three check joints shown in the diagram below (liquid pipe, discharge pipe and suction pipe).

SW12CN30 PMV operation

Bit 1 Bit 2 Bit 3 Bit 4

OFF OFF OFF OFF Short-circuit PMV1 fully open for 2 minutes.

ON OFF OFF OFF Short-circuit PMV3 fully opens for 2 minutes.

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan Fan motor



4-way valve


Low-pressure sensor Oil Separator

Fusible plug

Liquid Tank

Accumulator



Check valve

Check valve

Compressor 1

Oil Header


SV

(SV52) Reducer

FP

Compressor 2

Reducer

− 252 −

11 REPLACING COMPRESSORS11-1. Compressor Replacement Procedure (Outline)

NOYES

NO

START

Is the outdoor unit the only one in the system?

Recover refrigerant from the failed unit in accordance with “10 OUTDOOR UNIT REFRIGERANTRECOVERYMETHOD”.

Manually open PMV1, 3 and 4 of the failed unit (by short-circuiting the pins of CN30 on I/F P.C. board and turning off the power switch), and recover refrigerant using a refrigerant recovery device (*1).

Turn off the power switch of the failed outdoor unit.

Remove the faulty compressor.

Check the color of the oil in the faulty compressor.ASTM grade: Is it 4 or above?(Judge the condition of the oil against color samples, and decide whether to replace the faulty compressor only or all compressors.)

YESReplace both the faulty compressor and the normal compressor.

Measure the amount of oil in the normal compressor.

Adjust the amount of oil according to the oil quantity measurement result(s).

Install the new compressor(s) (*2).

Perform a leakage check of the failed outdoor unit.

Perform vacuum drying in the failed outdoor unit.

Refrigerant charging

END

Measure the amount of oil in the faulty compressor.

Replace the faulty compressor only.

WARNING

In situations such as indoor unit relocation and repairs, it is not possible to recover all the refrigerant held by the system in the outdoor units.It could cause a serious accident, such as blow out or injury.Be sure to perform refrigerant recovery using a refrigerant recovery device.

WARNING

When detaching a pipe by heating with a burner at brazed joint, take care as any oil left in the piping may burn in a momentary flash of fire when the brazed filler metal melts.

*1 The full-opening of PMV1, 3 and 4 via short-circuiting of the CN30 pins is automatically undone after 2 minutes, causing the valves to fully close. To maintain fully open state, turn off the power switch of the outdoor unit within 2 minutes.

*2 The SMMS-e (6 series) and the SMMS-i (4 series) use differenttypes of compressors.Be sure to check the service part code.

This flowchart only shows the standard compressor replacement procedure. Since the situation can differ site by site, perform the task in accordance with the following judgment criteria: (1) New compressors are charged with 1900cc of oil

per unit.(2) The amount of oil held by an outdoor unit is as

shown below.

(3) When a compressor is dismantled, it usually contains 800-1400cc oil.The amount of oil held by an oil separator is usually 0-1000cc for MAP0806∗, MAP1006∗, MAP1206∗, MAP14B6∗, MAP1406∗, MAP1606∗, MAP18B6*, MAP1806∗, MAP2006∗ and MAP2206*

Model MAP- 1806*, 2006*, 2206*

Amount of oil [cc] 4300 4800 5300

0806*, 1006*, 1206*, 14B6*

1406*, 1606*,18B6*

− 253 −

11-2. Replacement of Compressors<Checking color of oil in faulty compressor>• Lay the faulty compressor down, draw a small amount of oil via the oil equalization pipe, and check its color

against color samples.• Determine the number of compressors to be replaced according to the color checking result.

ASTM grade: Below 4 Replace the faulty compressor only.ASTM grade: 4 or above Replace both the faulty compressor and the normal compressor(s).

WARNINGWhen detaching a pipe by heating with a burner at brazed joint, take care as any oil left in the piping may burn in

a momentary flash of fire when the brazing filler metal melts.

<Adjusting amount of oil in new compressor> (1900cc at shipment)• Perform the adjustment on the basis of how much oil the faulty compressor contained, A [cc], by following the

steps below.

1 Amount of oil in faulty compressor A [cc]: 0 ≤ A < 1000(1) Adjust the amount of oil in the new compressor to 1000cc.

(Lay the new compressor down and draw 900 [cc] of oil via the oil-equalization pipe.)Notes:• Do not draw more than 900 [cc] of oil as it may cause damage to the compressor.• If the faulty compressor contained 500cc or less, there may have been a problem with the oil equalization circuit,

etc. Perform checks in accordance with “11-3. Check Procedure to Search Cause of Compressor Oil Shortage”.

Compressor

Oil equalization pipe

<Measuring amount of oil in faulty compressor>Amount of oil in faulty compressor: A [cc] = (Weight of compressor as it was dismantled (kg) - D) x 1042 (Specific volume of oil: 1042 [cc/kg])

(kg)

Compressor model

RA641A3TB-20M 24.5

RA421A3TB-20MD 22.0

※Please check the type name of the compressor as it was dismantled.

Ｄ：Weight

[When replacing faulty compressor only]

(not include oil）

− 254 −

2 Amount of oil in faulty compressor A [cc]: 1000 ≤ A < 1900 (1) Adjust the amount of oil in the new compressor to A cc.

(Lay the new compressor down and draw (1900 - A) [cc] of oil via the oil equalization pipe.)

3 Amount of oil in faulty compressor A [cc]: 1900 ≤ A (1) Adjust the amount of oil in the new compressor to A cc.

(Insert a hose into the discharge pipe or oil equalization pipe of the new compressor and inject (A-1900) [cc] of oil using a funnel, etc.)

Compressor

− 255 −

[When replacing normal as well as faulty compressor] - applicable toMMY-MAP0806*, 1006*, 1206* and 14B6*

• Remove the normal compressor in the same way as the faulty compressor.Note:• Be sure to insulate the removed compressor leads using insulation tape, etc.



<Measuring amount of oil in normal compressor>• As was the case with the faulty compressor, measure the amount of oil contained by placing the compressor on

a scale.Amount of oil in normal compressor: B [cc] = (Weight of compressor as it was dismantled (kg) - D) × 1042(Specific volume of oil: 1042 [cc/kg])

Note:

(kg)

Compressor model

RA421A3TB-20MD 22.0


<Adjusting amount of oil in new compressors>• Perform the adjustment on the basis of how much oil the faulty compressor contained, A [cc], and how much oil

the normal compressor contained, B [cc], by following the steps below.

1 Combined amount of oil in faulty and normal compressors A+B [cc]: 0 ≤ A+B < 2000 (1) Adjust the amount of oil in the two new compressors to 1000cc each (total 2000cc).• Lay the compressors down and draw 900 [cc] of oil from each of them via their oil equalization pipes.Notes:• Do not draw more than 900 [cc] of oil from a compressor as it may cause damage.• If the faulty compressor contained 500cc or less, there may have been a problem with the oil equalization circuit,


2 Combined amount of oil in faulty and normal compressors A+B [cc]:2000 ≤ A+B < 3800

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 cc each.• Lay the compressor down and draw [3800-(A+B)]/2 [cc] of oil from each of them

via their oil equalization pipes.

3 Combined amount of oil in faulty and normal compressors A+B [cc]:3800 ≤ A+B

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 cc each.(Insert a hose into the discharge pipe or oil equalization pipe of each compressor and inject (A+B)/2-1900 [cc] of oil using a funnel, etc.)

Compressor

Ｄ：Weight (not include oil）

− 256 −

<Remove the normal compressor>

• Remove the normal compressor in the same way as the faulty compressor.Note:• Be sure to insulate the removed compressor leads using insulation tape, etc.

WARNINGWhen detaching a pipe by heating with a burner at brazed joint, take care as any oil left in the piping may burn in a

momentary flash of fire when the brazing filler metal melts.

<Measuring amounts of oil in normal compressor>• As was the case with the faulty compressor, measure the amount of oil contained by placing each compressor

on a scale.Amount of oil in normal compressor: B [cc] = (Weight of compressor as it was dismantled (kg) - D) × 1042 (Specific volume of oil: 1042 [cc/kg])

Note:

(kg)

Compressor model

RA641A3TB-20M 24.5




1 Combined amount of oil in faulty compressor and normal compressor A+B [cc]: 0 ≤A+B < 2000

(1) Adjust the amount of oil in the two new compressors to 1000cc each (total 2000cc).• Lay the compressors down and draw 900 [cc] of oil from each of them via their oil equalization pipes.Notes:• Do not draw more than 900 [cc] of oil from a compressor as it may cause damage.• If the faulty compressor contained 500cc or less, there may have been a problem with the oil equalization circuit,


2 Combined amount of oil in faulty compressor and normalcompressor A+B [cc]: 2000 ≤ A+B < 4800

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 cc each.• Lay the compressor down and draw [4800-(A+B)]/2 [cc] of oil from each of

them via their oil equalization pipes.

3 Combined amount of oil in faulty compressor and normalcompressor A+B [cc]: 4800 ≤ A+B

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 cc each.(Insert a hose into the discharge pipe or oil equalization pipe of each

compressor and inject (A+B)/2-1900 [cc] of oil using a funnel, etc.)

Compressor


− 257 −

[When replacing normal as well as faulty compressor] - applicable toMMY-MAP1406*, 1606* and 18B6*<Remove the normal compressor>

[When replacing normal as well as faulty compressor] - applicable to MMY-MAP1806∗,2006∗ and 2206∗<Remove the normal compressor>• Remove the normal compressor in the same way as the faulty compressor.Note:• Be sure to insulate the removed compressor leads using insulation tape, etc.



<Measuring amounts of oil in normal compressors>• As was the case with the faulty compressor, measure the amount of oil contained by placing each compressor

on a scale.Amount of oil in normal compressor: B [cc] = (Weight of compressor as it was dismantled (kg) - D) × 1042 (Specific volume of oil: 1042 [cc/kg])

Note:

(kg)

Compressor model

RA641A3TB-20M 24.5




1 Combined amount of oil in faulty compressor and normal compressor A+B [cc]: 0 ≤A+B < 2000

(1) Adjust the amount of oil in the two new compressor to 1000cc each (total 2000cc).• Lay the compressor down and draw 900 [cc] of oil from each of them via their oil equalization pipes.Notes:• Do not draw more than 900 [cc] of oil from a compressor as it may cause damage.• If the faulty compressor contained 500cc or less, there may have been a problem with the oil equalization circuit,


2 Combined amount of oil in faulty compressor and normalcompressor A+B [cc]: 2000 ≤ A+B < 5300

(1) Adjust the amount of oil in the two new compressor to (A+B)/2 cc each.• Lay the compressor down and draw [5300-(A+B)]/2 [cc] of oil from each of

them via their oil equalization pipes.

3 Combined amount of oil in faulty compressor and normalcompressor A+B [cc]: 5300 ≤ A+B

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 cc each.

(Insert a hose into the discharge pipe or oil equalization pipe of each compressor and inject (A+B)/2-1900 [cc] of oil using a funnel, etc.)

Compressor


− 258 −

<Installing compressor>• Install a compressor by following the dismantling procedure in reverse.• The dismantling process may have loosened compressor leads and quick connectors. Prior to installation,

therefore, tighten them a little with a pair of pliers, and verify that they are tight after reconnection.Notes:• Although a compressor is provided with only two hexagonal bolts, it is standard.• The tightening torque of the hexagonal bolts, used to mount the compressor, is 200kg/cm.• If oil has been drawn from the accumulator, repair the cut pipe through pinching and brazing.

<Vacuum-pumping>(Single outdoor unit system)• Before performing vacuum-pumping, fully open PMV1, 3 and 4. If they are closed, the heat exchangers of the

outdoor unit cannot be vacuum-pumped.• Connect a vacuum pump consecutively to the check joints placed in the liquid and discharge pipes and on the

high-pressure side of the suction pipe, and turn it on.• Operate the vacuum drying until the vacuum gauge indicates 1 mmHg.

<Method to fully open PMV manually>(1) Turn on the power switch of the outdoor unit.(2) With the Bits 1 and 2 of SW12 set to off, short-circuit the pins of CN30.(3) Disconnect the connectors of PMV1 from the I/F P.C. board.(4) With the Bits 1 and 2 of SW12 set to off and on, respectively, short-circuit the pins of CN30.(5) Disconnect the connector of PMV4 from the I/F P.C. board(6) With the Bits 1 and 2 of SW12 set to on and off, respectively, short-circuit the pins of CN30.(7) Disconnect the connector of PMV3 from the I/F P.C. board.(8) Turn off the power switch of the outdoor unit.Note: Steps (6) and (7) are not required for MMY-MAP0806∗, 1006∗ and 1206∗ .

<Refrigerant charging>• Inject the same amount of refrigerant as the recovered residual refrigerant via the charging port of the liquid-side

service valve.

− 259 −

11-3. Check Procedure to Search Cause of Compressor Oil Shortage

Are there any miswiring or incorrect

connection of TK1, TK2, TK4 and TK5 sensor in the unit that has

replaced compressor?

Are the balance pipes of all outdoor units connected to the same refrigerant line fully open?

Are the characteristics of the TK1,

TK2, TK4 or TK5 sensors of the unit that has replaced compressor

correct?

(To next page)

No

No

No

Yes

Correct the miswiring or connection. TK1: CN531 TK2: CN532TK4: CN534 TK5: CN535

Yes

Yes

With the compressor(s) disconnected, check the oil circuit in accordance with the procedure described below.

Open the balance pipe valves fully.

Replace the faulty sensor.

− 260 −

<MMY-MAP0806 , MAP1006 and MAP1206 >Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

erudecorPnoitacoLmeti kcehC

Leakage of outdoor PMVLeakage of check valve in discharge pipe convergent section

A,C

1) With PMV1 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1 (A) and check valve of discharge pipe (C). Replace the faulty parts.

2) If the pressure does not increase, fully open outdoor PMV 1 and check the pressure at the check joint of discharge pipe again.If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe E

3) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the discharge pipe section of the disconnected compressor, there is a leak from the check valve of discharge pipe (E). Replace the part.

Leakage of check valve in oil equalization circuit F

4) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the oil equalization pipe section of the disconnected compressor, there is a leak from the oil equalization pipe check valve (F). Replace the part.

Leakage of SV3A valve G5) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3B valve. If gas

escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3A valve. Replace the part.

Leakage of SV3B valve H 6) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

Clogging of SV3D valveClogging of oil-return capillaryClogging of oil-return distributor

J7) With pressure applied to the check joint of discharge pipe with nitrogen, manually open the SV3D valve. If gas

does not escape from the suction pipe section of the disconnected compressor, the SV3D valve, oil-return capillary or oil-return distributor is clogged. Replace the part.

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor



4-way valve


Low-pressure sensor

Oil separator Fusible plug

Liquid Tank

Accumulator



Check valve

Check valve

Compressor 1

(Inverter)

Oil Header





SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

Reducer

A

J

G

I

G

H

F

E

C

− 261 −

<MMY-MAP1406 and MAP1606 >Check items and procedures to follow when checking oil circuit with compressor(s) disconnected



A,BC

1) With PMV1 and 3 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check thepressure at the check joint of discharge pipe.If the pressure at the check joint of discharge pipe increases, there is a leak PMV1(A) or 3(B) and check valve of dischage pipe (C). Replace the faulty parts.

2) If the pressure does not increase, fully open outdoor PMV1 and 3 and check the pressure at the check joint of discharge pipe again.If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe E 3) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the discharge pipe

section of the disconnected compressor, there is a leak from the check valve of discharge pipe (E). Replace the part.









仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

A

J

I

G H

F

E

C

B

− 262 −

<MMY-MAP1806 , MAP2006 and MAP2206 >Check items and procedures to follow when checking oil circuit with compressor(s) disconnected



A,B

1) With PMV1 and 3 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe.If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1(A) or 3(B)and check valve of discharge pipe (C). Replace the faulty parts.

2) If the pressure does not increase, fully open outdoor PMV1 and 3 and check the pressure at the check joint of discharge pipe again.If the pressure increases, there is a leak from the check valve of discharge pipe (C). Replace the part.

Leakage of check valve in discharge pipe E

3) With pressure applied to the check joint of discharge pipe with nitrogen, if gas escapes from the discharge pipe section of the disconnected compressor, there is a leak from the check valve of discharge pipe (E). Replace the part.









仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

J

I

G

H

E

C

F

A

B

− 263 −

12 OUTDOOR UNIT PARTS REPLACEMENTMETHODS

Remove the two discharge cabinets for 18, 20, 22HP unit.

Remove the two front lower cabinets and two rear lower cabinets for 18, 20, 22HP unit.(M5 x 10, 13 pcs (Front) M5 x 10, 10 pcs (Rear)

Remove the two front discharge cabines and two rear discharge cabinets for 18, 20, 22HP unit.(M5 x 10, 9 pcs (Front) M5 x 10, 9 pcs (Rear)

Remove the two front support plates and two rear support plates for 18, 20, 22HP unit.(M5 x 10, 6 pcs) - 2 set

skrameRerudecorp kroWdecalper eb ot traP.oN

1 CabinetWARNING

Wear a pair of gloves.Otherwise, you will risk an injury involving a replacement part or some other object.

1. Detachment1)Stop the air conditioner operation, and turn off the

circuit breaker.2)Remove the screws for the discharge cabinet.

(M5 × 16, 4 pcs.)

3)Remove the screws for the lower cabinet.Front and rear: (M5 × 10, 7 pcs. for front and 6pcs. for rear)

4)Remove the screws for the service panel.(M5 × 10, 2 pcs.)

5)Remove the screws for the suction cabinet.Front and rear: (M5 × 10, 4 pcs. each)

6)Remove the screws for the discharge cabinet side cabinet.Left and right: (M5 × 10, 6 pcs. each)

2. AttachmentCarry out installation by following the detachment procedure in reverse (6) 1)).Be careful of the hooks provided on the suction cabinet, service panel and lower cabinet.

With a 14, 16, 18HP unit, the discharge cabinet side covers need to be removed.Left and right: (M5 × 16, 2 pcs.) - 2 sets

In the case of a 14, 16, 18HP unit: M5 × 10, 5 pcs. each

2) Discharge cabinet Screws (4 corners)

Screws (4 corners)

5) Suction cabinet (front and rear)

6) Side cabinet(left and right)

Discharge cabinet side cover

Hook

Service panel

4)

6) Side cabinet(left & right)3) Lower cabinet

(front & rear)

5) Suction cabinet(front & rear)

2) Discharge cabinet

Service panel 3) Lower cabinet (front and rear)

− 264 −

2 Propeller fanFan motor WARNING


1. Detachment1)Stop the air conditioner operation, and turn off the

circuit breaker.2)Remove the screws for the discharge cabinet.

(M5 × 10, 4 pcs.)3)Remove the heat exchanger partition plate

(upper).(M5 × 10, 2 pcs.)* With a 14, 16, 18HP unit, the fan motor can be

replaced without removing the discharge cabinetside covers.

4)Remove the flange nut securing the fan motor and propeller fan.(To loosen the nut, turn it clockwise.)

5)Remove the square washer.6)Remove the propeller fan.

CAUTION

Lift it straight up.Do not forcibly pull it, or it may get stuck.

7)Disconnect the Faston connectors for the fanmotor leads (3 pieces) from the Fan IPDU, andpull the leads up and out.

8)Remove the fan motor.(M6 × 20, 4 pcs.)


Discharge cabinet side cover

4) Flange nut

6)

7)

8) Screw (4 locations)

5) Square washer

2) Screws (4 corners)

3) Heat exchangerpartition plate (upper)

Disconnect Faston connectors and pull fan motor leads up and out.

Fan motor lead travel route

Close-up view of Faston connectors

Fan IPDU

Clamp filter

• As for 18 to 22HP outdoor unit, the numberof Fan, Fan motor, Motor base, Flange nut, Washer and Fan P.C Board are twice compare to 8 to 18HP outdoor unit because 2 Fans are equipped.

− 265 −

2 Propeller fan Fan motor(continued)

2. CAUTION for replacement or attachment1) Insert the propeller fan while aligning the D-cut

surface of the fan motor shaft with the arrow mark ( ) on the fan.(If the propeller fan is tightly mounted on the shaftwithout securing alignment between the D-cutsurface and the arrow mark ( ), it may cause the fan to melt and fall off due to friction heat.)

2)Be sure to put the square washer in place.(Otherwise, unusual noises and vibrations mayresult.)

3)Tighten the flange nut at a torque of 15N•m(153kgf•cm).(To tighten the flange nut, turn itcounterclockwise.)

4)Remove the clamp filter from the fan motor withtrouble, then attach the clamp filter to thesubstitution in the same way as beforereplacement. (Turn through the fan motor leadonce around the clamp filter.)


D-cut surface of fan motor shaft

Arrow mark ( ) of fanTo be aligned with D-cut surface

4) Clamp filter

8 to 18HP

18 to 22HP

4) Clamp filter

• Apply the same procedure again for 18 to22HP unit to replace another clamp filter.

− 266 −

3 Heat exchangerWARNING


Before the work, be sure to recover the refrigerant of outdoor unit into cylinders or another unit connected to the same system.(Refer to the chapter on “refrigerant recovery methods to be used during compressor replacement”.)

1. Detachment (Right-Side Heat Exchanger asExample)1)Remove the cabinet.2)Remove the motor base.

(M5 × 10, 6 pcs.)

(Detach the fan motor leads as well.)

3)Remove the upper partition plate.(M5 × 10, 5 pcs.)

4)Remove the screws for the support post.(M5 × 10, 2 pcs.)

5)Remove the screws for the waterproof board.(M4 × 10, 2 pcs.)

6)Remove the brazed joints of the piping connected (2 locations).

7)Remove the screws for the heat exchanger endplate and pull the heat exchanger out.(M5 × 10, 2 pcs.)


With a 14, 16, 18HP unit, remove the discharge cabinet anchor plates.Left and right: (M5 × 10, 2 pcs.) - 2 sets

With a 14, 16, 18, 20,22HP unit, also remove the brazed joints of the piping connected to the sub-heat exchanger (2 locations).

3) Discharge cabinet anchor plate

Fan

3)

4)

5)

Discharge cabinetanchor plate

Heat exchanger (left)

Support post

Watarproof board(between left and rightheat exchangers)

2) Motor base

7) Rear

Heat exchanger (right)

Heat exchanger (left)

Supportpost

Pull heat exchanger out of rear end.(Left-side heat exchanger is pulled out of front end.)

Remove the two motor bases for 18, 20, 22HPunit.(M5 x 10, 6 pcs) - 2 set

With 18, 20, 22HP unit, remove the discharge cabinet anchor plate. (M5 x 10, 2 pcs

Support plate(front & rear)

− 267 −

4 Inverter assemblyWARNING


1. Detachment1)Stop the air conditioner operation, and turn off

the circuit breaker.2)Remove the inverter cover.

(M4 × 10, 2 pcs.)3)Remove the wiring.

(e.g. the power supply wire, compressor leads,coils, sensors and heaters)

5)Remove the screws securing the box.(M5 × 10, 1 pc. each for top and bottom)

6)Disengage the hook by gently pressing down thelocking lever with your finger.(The lower part of the box moves forward.)

7)Hold the top board with both hands to disengagethe top hook.

2. AttachmentCarry out installation by following the dismantling procedure in reverse (7) 1)).Before pushing the lower part in, pull the reactor leads out. Take care so that the wiring does not get caught in the way.Reconnect all the wiring.


4)Steps only applicable to a 14, 16, 18HP unit• Remove the reactor lead cover.

(M4 × 10, 1 pc.)• Remove the screws securing the box.

(M4 × 10, 1 pc.)• Detach the reactor leads.

(4 terminal block bolts)

In the case of a 14, 16, 18, 20, 22HP unit: M5 × 10, 3 pcs. for top and 2 pcs for bottom

5) Screw

Pull it forward

Locking lever

4) Screw (with arrow mark)

5) Screws witharrow mark(2 locations)

7)

Before pushing lower part in, pull leads out through hole.

When pushing lower part in, be sure to keep wiring out of way.

Removable design

4) Screw4) Reactorlead cover

4)) Fan1 (left side)

4) Reactorterminal block

(with arrow mark)

4) Fan2 (right side)

− 268 −

5 Reactor assemblyWARNING


1. Detachment1)Stop the operation, and turn off the circuit breaker.2)Remove the inverter assembly.

(See the inverter assembly dismantling methodunder item 4.)

4)Remove the reactor box located at the back of the inverter assembly.(M4 × 6, 4 pcs.)* The screws can be removed from the front.

5)Remove and replace the reactor.(M4 × 6, 1 pc.)

• 14 to 22HP case

• 8, 10, 12, 14HP case[


3)With a 14, 16, 18, 20, 22HP unit, remove theseparately mounted reactor box.To remove the reactor box, remove the screwsat the top and bottom (M5 × 10) and unlock thebox by sliding the stopper to the right.* Before pulling the reactor box, tilt it back to free

the bottom.

With a 14, 16, 18, 20, 22HP unit, remove the separately mounted anchor plate.(M4 × 6, 4 pcs.)

3) Screw

3)

Fixing claw (slide stopper to right)

Fixing claw (slide stopper to right)

Screw

4) Screws (2 locations)




− 269 −

6 2-way valve coilsPressure sensorslocationsMAP0806*MAP1006*MAP1206*

No. Part to be replaced Work procedure

MAP1806*MAP2006*MAP2206*

Remarks

MAP1406*MAP1606*

Rear

Front

Rear

Front

Front

Rear

For HT8(J)P, HT7(J)P, HT8(J)P-ME, HT7P-ME, T8(J)P-E, HT8P-A model

− 270 −



MAP1806*MAP2006*MAP2206*

Remarks

MAP1406*MAP1606*

Rear

Front

Rear

Front

Front

Rear

(For HT8(J)P-E, HT8(J)P-TR model)

− 271 −



MAP1806*MAP2006*MAP2206*

Remarks

MAP1406*MAP1606*

Rear

Front

Rear

Front

Front

Rear

(For T8(J)P, T7(J)P, T8P-SG, T8(J)P-ID, T8(J)P-T model)

− 272 −

MAP14B6*

MAP18B6*

TL1 sensor(yellow)

TL1 sensor(yellow)

TL1 sensor(yellow)

Example:for Asia model

For only Europe and Turkey model

For cooling only model

Work procedure RemarksNo. Part to be replaced

7 Temperature sensors- locations and idenfication colorsMAP0806* MAP1006* MAP1206*MAP14B6*

Product front view

TS1 sensor (gray)

TK4 sensor (white)

TK5 sensor (green)

TL3 sensor (red)

TK1 sensor (black)

- One closer to you

TS3 sensor (black)

TK2 sensor (blue)

- One farther to you

Product rear view

− 273 −

No. Part to be replaced Work procedure Remarks

7Product front view

Product rear view

TL3 sensor (red)

TK5 sensor (green)

TS3 sensor (black)

TK1 sensor (black)

- One closer to you

TK2 sensor (blue)


TS1 sensor (gray)

TK4 sensor (white)

Temperature sensors - locations and idenfication colors MAP1406* MAP1606*MMP18B6*

− 274 −

TL2 sensor(gray)

TG1 sensor(blue)

TG2 sensor(red)

TL1 sensor(yellow)

TG1 sensor(blue)

TG2 sensor(red)

TL1 sensor(yellow)

TL2 sensor(gray)

TL1 sensor(yellow)


TL2 sensor(gray)



No. Part to be replaced Work procedure Remarks

7 Temperature sensors- locations and idenfication colorsMAP1806*MAP2006*MAP2206*

Product front view

Product rear view

TK4 sensor (white)

TK5 sensor (green)

TK1 sensor (black)

- One closer to you

TK2 sensor (blue)


TS1 sensor (gray)

TS3 sensor (black)

TL3 sensor (red)

− 275 −

TL2 sensor(gray)

TG1 sensor(blue)

TG2 sensor(red)

TL1 sensor(yellow)

TL2 sensor(gray)

TG1 sensor(blue)

TG2 sensor(red)

TL1 sensor(yellow)

TL2 sensor(gray)

TL1 sensor(yellow)




Remarks

MAP1406*MAP1606*

8 Pipe fixing rubber- detachment/attachmentMAP0806*MAP1006*MAP1206*

Work procedureNo. Part to be replaced

MAP1806*MAP2006*MAP2206*

(For HT8(J)P, HT7(J)P, HT8(J)P-ME, HT7P-ME, T8(J)P-E, HT8P-A model)

− 276 −

Remarks

MAP1406*MAP1606*

8 Pipe fixing rubber- detachment/attachmentMAP0806*MAP1006*MAP1206*


MAP1806*MAP2006*MAP2206*


− 277 −

Remarks

MAP1406*MAP1606*MAP18B6*

8 Pipe fixing rubber- detachment/attachmentMAP0806*MAP1006*MAP1206*MAP14B6*


MAP1806*MAP2006*MAP2206*

(For T8(J)P, T7(J)P, 8P-SG, T8(J)P-ID, T8(J)P-T model)

− 278 −

8 Pipe fixing rubber- detachment/attachment(common)

WARNING


1. Detachment1)Hold the pipe fixing rubber in such a manner that

your fingers and thumb are in contact with the two longitudinal ends of the piece, and squeeze it alittle to create a small gap between the rubber and the stainless steel band wrapped around it.

2)Push the hook end of the stainless steel banddown to disengage the hook from the squarehole.

2. Attachment1)The pipe fixing rubbers use a two-segment design

to accommodate a wide range of pipecombinations. When installing them, therefore, itis recommended to first split them up intosegments and pair the segments up only afterplacing them on pipes of matching sizesseparately. In this regard, make sure that themating tooth and slit of pairing segments faceeach other.

2)When placing an stainless steel band aroundpipe fixing rubber, make sure that the hook endof the stainless steel band coincides with the slitside of the rubber.(The band can be placed the other way around,but only at the expense of work efficiency.)

3)Place the stainless steel band tightly around thepipe fixing rubber so that there is no gapbetween them.Take utmost care not to create a gap over thecurved section of the rubber where the hairpinside of the band is located.

4)While holding the rubber, press down the base ofthe hook lightly against the rubber, and engagethe hook with the square hole by squeezing thecurved section of the rubber where the squarehole side of the band is located (see the arrow).(If the hook does not engage with the square hole, recheck whether there is a gap between the bandand rubber.)


Squeeze rubber to create small gap.

1)

2)

Push band down in arrow direction.

Slide it along.

Place two segments of damper on pipes of matching sizes separately, making sure tooth and slit of pairing segments face each other.

1)

2)

3)

4)

Make sure that hook end of stainless steel band coincides with slit side of rubber.

Place band tightly around rubber without a gap between them.

Push square hole end of tape in arrow direction by squeezing rubber.

Press down hook side of tape against rubber.

Align tooth and slit and push two segments towards each other.

− 279 −

9 4-way valve- detachment/attachmentMAP0806MAP1006MAP1206

WARNING


Before starting the work, be sure to recover the refrigerant of outdoor unit by removing it with a refrigerant recovery device.

1. Detachment1)Remove the lower cabinet (front side).2)Remove the inverter box in accordance with the

dismantling instructions.3)Disconnect the 4-way valve coil and PMV1 coils

(1 piece) and get all wiring located near the4-way valve out of the way.

4)Remove brazed points (2 locations) for the PMVassembly, which is placed in front of the 4-wayvalve.* Provide adequate cover for the PMV to protect it

from overheating.5)Since it is difficult to simultaneously remove the

brazed points for the pipes located above the 4-way valve (3 locations), cut through them justbelow the brazed points using a saw, etc.

6)Detach the pipe located below the 4-way valve.7)Remove the end sections of the pipes above the

4-way valve, which were cut in step 5).8) Install a new 4-way valve.

* Provide adequate cover for the 4-way valve toprotect it from overheating. During the installation,insert pipes firmly into the 4-way valve, or ablockage or leakage involving brazing filler metalmay result.

9)Reinstall the PMV assembly, which was removedin step 4).* Provide adequate cover for the PMV to protect it

from overheating.10) Reinstall all the coils removed in step 3), and put

the wiring back to its initial state.11) Reinstall the inverter box in accordance with the

installation instructions.12) Reinstall the lower cabinet.


PMV1

Brazed point

Brazed point

7) End sections of pipes (3 locations)

5) Cutting line

Brazed point

4-way valve

For HT8(J)P, HT7(J)P, HT8(J)P, HT8(J)P-ME, HT7P-ME, T8(J)P-E, HT8P-A model

For HT8(J)P-E, HT8(J)P-TR model

− 280 −

9 4-way valve- detachment/attachment(continued)MAP1406MAP1606

WARNING



1. Detachment1)Remove the lower cabinet (front side).2)Remove the inverter box in accordance with the

dismantling instructions.3)Disconnect the 4-way valve coil and PMV1, PMV3

coils (2 pieces) and get all wiring located near the4-way valve out of the way.

4)Remove brazed points (3 locations) for the PMVassembly, which is placed in front of the 4-wayvalve.* Provide adequate cover for the PMV proper to

protect it from overheating.5)Since it is difficult to simultaneously remove the





9)Reinstall the PMV assembly, which was removedin step 4).* Provide adequate cover for the PMV to protect it

from overheating.10) Reinstall all the coils removed in step 3), and put

the wiring back to its initial state.11) Reinstall the inverter box in accordance with the

installation instructions.12) Reinstall the lower cabinet.



5) Cutting line

Brazed point

4-way valve

Brazed point

Brazed point

PMV1

PMV3


− 281 −


9 4-way valve- detachment/attachment(continued)MAP1806MAP2006MAP2206

WARNING



1. Detachment1)Remove the lower cabinet (left and right).2)Remove the inverter box in accordance with the

dismantling instructions.3)Disconnect the 4-way valve coil and get all wiring

located near the 4-way valve out of the way.4)Since it is difficult to simultaneously remove the





8) Reinstall all the coils removed in step 3), and put the wiring back to its initial state.

9) Reinstall the inverter box in accordance with theinstallation instructions.

10) Reinstall the lower cabinet.



4) Cutting line

Brazed point

4-way valve

Cutting through of pipes located above 4-way valve (3 locations)

4-way valve

Removing of brazed point for pipe located below 4-way valve (1 location) Support plate *1

*1)Be careful for support-plate near the 4way-valve when conduct the replacement.



− 282 −

13 P.C. BOARD EXCHANGE PROCEDURES

Outdoor Unit

13-1. Replacement of outdoor P.C. board

13-1-1 List of service P.C. boards Parts code Description Applicable model P.C. board type code Product code

43T6V626 Interface P.C. board

MMY-MAP0806* MMY-MAP1006* MMY-MAP1206*

MCC-1673 ASM-PCB(I/F) 43T6V628 Inverter P.C. board for compressor MCC-1669 ASM-PCB(A3IPDU) 43T6V627 Inverter P.C. board for fan MCC-1659 ASM-PCB(FANIPDU) 43T6V623 Noise filter P.C. board MCC-1608-A,B ASM-PCB(N/F)

43T6V646 Demand Response P.C. board (For MMY-MAP****HT8P-A) MCC-1653 ASM-PCB(DRC)

Parts code Description Applicable model P.C. board type code Product code


MMY-MAP1406* MMY-MAP1606*

MCC-1673 ASM-PCB(I/F) 43T6V629 Inverter P.C. board for compressor MCC-1669 ASM-PCB(A3IPDU) 43T6V627 Inverter P.C. board for fan MCC-1659 ASM-PCB(FANIPDU) 43T6V623 Noise filter P.C. board MCC-1608-A,B ASM-PCB(N/F)


Parts code Description Applicable model P.C. board type code Product code



MCC-1673 ASM-PCB(I/F) 43T6V630 Inverter P.C. board for compressor MCC-1660 ASM-PCB(A3IPDU) 43T6V627 Inverter P.C. board for fan MCC-1659 ASM-PCB(FANIPDU) 43T6V624 Noise filter P.C. board (Left side) MCC-1608-A,B ASM-PCB(N/F) 43T6V625 Noise filter P.C. board (Right side) MCC-1608-A,B ASM-PCB(N/F)


13-1-2 Configuration of inverter assembly


(MCC-1659)







MMY-MAP0806* MMY-MAP1006* MMY-MAP1206*MMY-MAP14B6*

Thermistor

Magnet Contactor

For MMY-MAP****HT8P-A

Demand Response P.C. board (MCC-1653)

Transformer

− 283 −


Thermistor


(MCC-1659)





Inverter P.C. board for fan1 [FAN IPDU]

(MCC-1659)




Inverter P.C. board for fan2 [FAN IPDU]

(MCC-1659)






Magnet Contactor


Thermistor

Magnet Contactor




Transformer



Transformer

− 284 −

MMY-MAP1406* MMY-MAP1606* MMY-MAP18B6*

− 285 −

13-1-3. Interface P.C. Board (MCC-1673) Replacement Procedure

This Interface board is commonly installed in different models before shipment. When the board assembly is to be replaced, check the displayed inspection contents below and replace the board in accordance with the model, following the below procedure.

Replacement steps:

(1) Turn off the power supply of the outdoor unit and wait at least 3 minutes. (2) Remove all of the connectors connected to the interface board. (Remove the connectors by pulling the

connector body. Do not pull the wire).

(3) Remove the interface board from the six PCB mounts (①). (4) Cut the jumper wires of the service board, as instructed in the table below.

The jumper setting differs from original supplied PCB, therefore be sure to configure the Jumpers as in the table below. If the model is not specified, inspection code "L10" is displayed and the equipment will not operate.

Model name Model size J02 J06 J07 J09 J10 J11 J12 J22 Service P.C. Board Yes Yes Yes Yes Yes Yes Yes Yes

MMY-MAP0806HT8/7(J)P* 990W

－－－ Cut Cut －－ Cut MMY-MAP1006HT8/7(J)P* －－－－ Cut －－ Cut MMY-MAP1206HT8/7(J)P* －－－ Cut －－－ Cut MMY-MAP1406HT8/7(J)P* 1210W －－－ Cut Cut Cut Cut Cut MMY-MAP1606HT8/7(J)P* －－－－ Cut Cut Cut Cut MMY-MAP1806HT8/7(J)P*

1600W －－－ Cut － Cut Cut Cut

MMY-MAP2006HT8/7(J)P* －－－－－ Cut Cut Cut MMY-MAP2206HT8/7(J)P －－－ Cut Cut － Cut Cut

MMY-MAP0806HT8(J)P-E/-TR 990W

－ Cut Cut Cut Cut －－ Cut MMY-MAP1006HT8(J)P-E/-TR － Cut Cut － Cut －－ Cut MMY-MAP1206HT8(J)P-E/-TR － Cut Cut Cut －－－ Cut MMY-MAP1406HT8(J)P-E/-TR 1210W － Cut Cut Cut Cut Cut Cut Cut MMY-MAP1606HT8(J)P-E/-TR － Cut Cut － Cut Cut Cut Cut MMY-MAP1806HT8(J)P-E/-TR

1600W － Cut Cut Cut － Cut Cut Cut

MMY-MAP2006HT8(J)P-E/-TR － Cut Cut －－ Cut Cut Cut MMY-MAP2206HT8(J)P-E/-TR － Cut Cut Cut Cut － Cut Cut

MMY-MAP0806T8(J)P-E 990W

Cut －－ Cut Cut －－ Cut MMY-MAP1006T8(J)P-E Cut －－－ Cut －－ Cut MMY-MAP1206T8(J)P-E Cut －－ Cut －－－ Cut MMY-MAP1406T8(J)P-E 1210W Cut －－ Cut Cut Cut Cut Cut MMY-MAP1606T8(J)P-E Cut －－－ Cut Cut Cut Cut MMY-MAP1806T8(J)P-E

1600W Cut －－ Cut － Cut Cut Cut

MMY-MAP2006T8(J)P-E Cut －－－－ Cut Cut Cut MMY-MAP2206T8(J)P-E Cut －－ Cut Cut － Cut Cut MMY-MAP0806T8/7(J)P#

990W

Cut －－ Cut Cut －－ Cut MMY-MAP1006T8/7(J)P# Cut －－－ Cut －－ Cut MMY-MAP1206T8/7(J)P# Cut －－ Cut －－－ Cut MMY-MAP14B6T8/7(J)P# Cut Cut － Cut Cut Cut Cut Cut MMY-MAP1406T8/7(J)P#

1210W Cut －－ Cut Cut Cut Cut Cut

MMY-MAP1606T8/7(J)P# Cut －－－ Cut Cut Cut Cut MMY-MAP18B6T8/7(J)P# Cut Cut － Cut － Cut Cut Cut MMY-MAP1806T8/7(J)P#

1600W Cut －－ Cut － Cut Cut Cut

MMY-MAP2006T8/7(J)P# Cut －－－－ Cut Cut Cut MMY-MAP2206T8/7(J)P# Cut －－ Cut Cut － Cut Cut

* The characters in accordance with the destination may attach to the end of model name. (Blank, -A, -ME)

# The characters in accordance with the destination may attach to the end of model name. (Blank, -ID, -SG, -T)

− 286 −

(5) Set the dip switch settings of the service board to match the switch settings of the PCB being replaced.

(6) Install the service board to the outdoor control unit (Confirm that it is securely fixed to the PCB Mounts).

(7) Connect the connectors (Confirm that they are correctly and securely inserted).

(8) If a component on the board is bent during board replacement, adjust it manually ensuring that it is not short or contact other parts.

(9) Install the cover, then turn on the power supply. Check the operation.

Jumpers

SW06 SW07

SW11 SW12

SW17

SW13 SW14

SW16

SW10 SW09

① ①

①

①

① PCBMounts

①

Push this part to the direction of the arrow. And remove the PCB.

PCB Mounts ①

Interface P.C.Board （43T6V626）

Dip Switches

13-1-4. Comp-IPDU P.C. Board (MCC-1669) Replacement Procedure <8 to 14HP outdoor unit case>

This board is commonly installed in different models before shipment. Set the DIP switch (SW800) setting of the service board to the switch setting before replacement.

Replacement Steps:

(1) Turn off the power supply of the outdoor unit and allow at least 3 minutes for the capacitor to discharge.

(2)Remove all the connectors and the Faston and screw terminals(①) connected to the Compressor IPDU. (Remove the connectors by pulling the connector body. Do not pull the wire).

(3)Remove all the four screws(②) which secures the Compressor IPDU to the Heat sink. (These screws are to be re-used after procedure.)

(4)Remove the Compressor IPDU from the four spacers (③) by pinching the top of the spacers by round-nose pliers.

③ ③

②Screw

①RED lead wire

①Reactor lead wire

③

Compressor IPDU (43T6V628)

Compressor IPDU (MCC-1669）

①WHITE lead wire

①BLACK lead wire


①RED lead wire

①WHITE lead wire

①BLACK lead wire

②Screw

SW800

Ex. MMY-MAP1206HT8P

Pinch this part by round-nose pliers for removing the PCB.

Spacer ③(4 are in packed in this service assembly)

①BLUE lead wire

①YELLOW lead wire

− 287 −

(5) Set the DIP switch (SW800) setting of the service board to match the switch setting from the original PCB. -Set the DIP switch (SW800) depending on the position of the IPDU within the electrical box, as shown in the following diagram.

(6) Apply the Silicone Thermal Grease to the semiconductors (DB01, Q201) on the service PC board, and align the positions of the heat sink holes to mount the Compressor IPDU on the outdoor control unit. And fix the Compressor IPDU to the outdoor control unit by the spacers (③).

(7) Screw the Compressor IPDU to the heat sink by the four screws that were removed in step (3). If the screws are loose, the effect component will generate heat, and cause it to breakdown. Do not use an electric driver or an air driver. As it can cause component damage. The torque of the screws for DB01 and Q201 is “1.2Nm”.

(8) Re-connect the connectors and Faston and screw terminals(①). Be sure that all the connectors and the screw terminals are connected correctly and securely inserted.

Note: ①When connecting the white lead wire which is connected to CN02, be absolutely sure that it is passed through the T611 transformer and then connected ②When connecting the black lead wire which is connected to CN03,

be absolutely sure that it is passed through the T612 transformerand then connected

(If it is not passed through the transformer, it will not be possible for the input current level to be measured correctly, and a compressor failure may result.)

(9) If the components on the PCB were bent during this procedure, straighten them so they do not touch other parts.

(10) Install the cover, then turn on the supply. Check the operation.

Compressor IPDU【Left Side】 For Compressor: 1 DIP switch (SW800) setting：

Compressor IPDU【Right Side】 For Compressor: 2 DIP switch (SW800) setting：

ON

Ex. MMY-MAP1206HT8P

ON

OFF OFF ON 1 2 1 2

ON

Uniformly apply the Silicone Thermal Grease to the heat dissipating surfaces of the IPM (Q201) and rectifier (DB01). Note: Do this work carefully since allowing any dirt, scratches, etc. to be left on the PC board

mounting areas of the semiconductors will impair the heat dissipation effect and may result in a failure.

Silicone Thermal Grease use one of the following ･Momentive Performance Materials ‘’TIG1000’’ ･Dow Corning Toray ‘’SC102’’ ･Mizutani Electric Ind ‘’HSC1000’’ ･Shin-Etsu Chemical ‘’G-746’’ or ‘’G-747’’

T612 T611

DB01

Q201

− 288 −



Replacement Steps:



(3)Remove all the four screws(②) which secures the Compressor IPDU to the Heat sink. (These screws are to be re-used after procedure.)


③ ③

②Screw

①RED lead wire


③


Compressor IPDU （MCC-1669）

①WHITE lead wire

①BLACK lead wire


①RED lead wire

①WHITE lead wire

①BLACK lead wire

②Screw

SW800

Ex. MMY-MAP1606HT8P



①BLUE lead wire

①YELLOW lead wire

− 289 −


(6) Apply the Silicone Thermal Grease to the semiconductors (DB01, Q201) on the service PC board, and align the positions of the heat sink holes to mount the Compressor IPDU on the outdoor control unit. And fix the Compressor IPDU to the outdoor control unit by the spacers (③).

(7) Screw the Compressor IPDU to the heat sink by the four screws that were removed in step (3). If the screws are loose, the effect component will generate heat, and cause it to breakdown. Do not use an electric driver or an air driver. As it can cause component damage. The torque of the screws for DB01 and Q201 is “1.2Nm”.


Note: ①When connecting the white lead wire which is connected to CN02, be absolutely sure that it is passed through the T611 transformer and then connected ②When connecting the black lead wire which is connected to CN03,

be absolutely sure that it is passed through the T612 transformerand then connected






ON

Ex. MMY-MAP1606HT8P

ON

OFF OFF ON 1 2 1 2

ON

Uniformly apply the Silicone Thermal Grease to the heat dissipating surfaces of the IPM (Q201) and rectifier (DB01). Note: Do this work carefully since allowing any dirt, scratches, etc. to be left on the PC board



T612 T611

DB01

Q201

− 290 −



Replacement Steps:



(3)Remove all the eight screws(②) which secures the Compressor IPDU to the Heat sink. (These screws are to be re-used after procedure.)


③ ③

②Screw

①RED lead wire


③


Compressor IPDU （MCC-1660）

①WHITE lead wire

①BLACK lead wire


①RED lead wire

①WHITE lead wire

①BLACK lead wire

②Screw

SW800

Ex. MMY-MAP2206HT8P



①BLUE lead wire

①YELLOW lead wire

②Screw

②Screw

− 291 −


(6) Apply the Silicone Thermal Grease to the semiconductors (DB01, DB02, DB03, Q201) on the service PC board, and align the positions of the heat sink holes to mount the Compressor IPDU on the outdoor control unit. And fix the Compressor IPDU to the outdoor control unit by the spacers (③).

(7) Screw the Compressor IPDU to the heat sink by the eight screws that were removed in step (3). If the screws are loose, the effect component will generate heat, and cause it to breakdown. Do not use an electric driver or an air driver. As it can cause component damage. The torque of the screws for DB01, DB02, DB03 and Q201 is “1.2Nm”.


Note: ①When connecting the lead wire, don't touch PCB part of the T202 transformer.

②When connecting the white lead wire which is connected to CN02,be absolutely sure that it is passed through the T611 transformerand then connected.

③When connecting the black lead wire which is connected to CN03,be absolutely sure that it is passed through the T612 transformerand then connected.④When connecting the red lead wire which is connected to CN203,

be absolutely sure that it is passed through the T201 transformerand then connected.⑤When connecting the white lead wire which is connected to CN202,

be absolutely sure that it is passed through the T202 transformerand then connected.






ON

Ex. MMY-MAP2206HT8P

ON

OFF OFF ON 1 2 1 2

ON

Uniformly apply the Silicone Thermal Grease to the heat dissipating surfaces of the IPM (Q201) and rectifier (DB01, DB02, DB03). Note: Do this work carefully since allowing any dirt, scratches, etc. to be left on the PC board



T612 T611

DB03

Q201

DB02

DB01

T201

T202

PCB part of the T202 transformer

− 292 −

13-1-7. Fan-IPDU P.C. Board (MCC-1659) Replacement ProcedureThis board is commonly installed in different models before shipment. Set the DIP switch (SW800) setting of the service board to the switch setting before replacement.

Replacement steps:


(2) Remove all the connectors and the Faston and screw terminals(①) connected to the FAN IPDU. (Remove the connectors and Faston terminals by pulling the connector body. Do not pull the wire).

(3) Remove all the two screws(②) which secures the FAN IPDU to the Heat sink. (These screws are to be re-used after procedure.)

(4) Remove the Fan IPDU from the four PCB Mounts (③).

(5) Confirm that no dirt or damage is on the sub heat sink. As it can reduce the heat transfer efficiency, and cause a breakdown.

PCB Mounts ③

②

②Screw

①Faston terminalWHITE lead wire

③

FAN IPDU (MCC-1659)

Remove the PCB

IC302

Push this part to the direction of the arrow. And remove the PCB.

Ex. MMY-MAP1206HT8P FAN-IPDU (43T6V627)

③

①Faston terminalRED lead wire

①Faston terminalBLACK lead wire

③

①Screw terminalBLUE lead wire

SW800

Sub Heat Sink

Heat Sink

①Faston terminalYELLOW lead wire

− 293 −


(6) Apply the Silicone Thermal Grease to the semiconductors (IC302) on the service PC board, and align the PCB mount holes on the PCB with the PCB mounts, and fix the FAN IPDU to the outdoor control unit by clipping the PCB into the PCB mounts (③).

(7) Screw the FAN IPDU to the heat sink by the two screws that were removed in step (3). If the screws are loose, the effected component will generate heat, and cause in to breakdown. Do not use an electric driver or an air driver, as it can cause component damage. The torque of 2 screws (IC302) is “0.55Nm”.

(8) Re-connect the connectors and Faston and screw terminals(①). Be sure that all the connectors and the Faston terminals are connected correctly and securely inserted.

(9) If the components on the PCB were bent during this procedure, straighten them so they do not to touch other parts.


Ex. MMY-MAP1206HT8P Ex. MMY-MAP1606HT8P

FAN-IPDU【Upper Side】 For Fan: 1 DIP switch (SW800) setting：

ON

1 2


ON

1 2

Ex. MMY-MAP2206HT8P


ON

1 2

FAN-IPDU【Left Side】 For Fan: 2 DIP switch (SW800) setting：

ON

1 2

Uniformly apply the Silicone Thermal Grease to the heat dissipating surfaces of the IPM (IC302). . Note: Do this work carefully since allowing any dirt, scratches, etc. to be left on the PC board



− 294 −

13-1-8. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure <8 to 16HP outdoor unit case>

Replacement steps: (1) Turn off the power supply of the outdoor unit and allow at least 3 minutes for the capacitor to discharge.

(2) Remove the terminal block sub-assembly ①. Remove the screws ② on the power supply terminal block ④ and the screws ③ securing the terminal block subassembly ①.

• he screws will be reused during the installation of the service P.C. board, so keep them in a safe place.

(3) Disconnect all the connectors and Faston terminals used to connect wiring to the noise filter P.C. board. • he line filter ⑨ and its leads, both connected to the screw-on terminals ⑧ of the noise filter P.C. board (A) will

be removed in step 6.• D sconnect all the connectors and Faston terminals.

Ex. MMY-MAP1206HT8P Noise Filter P.C. board(MCC-1608) Noise Filter P.C. board

(43T6V623) PCB Mount⑦⑦

⑦

Screw⑤

⑧

Screw-on terminal⑧ ⑧

⑧

⑧

⑧

Noise Filter P.C. board (A) (MCC-1608A)

Noise Filter P.C. board B (MCC-1608B)

⑦

Line Filter⑨

Remove terminal block sub-assembly①

②Screw③Screw

④Power supplyterminal block

③

③

Screw⑥

PCB Mount⑩

⑦

⑦

②

②

③

⑩ ⑩

②

− 295 −

(4) Remove the earth screws ⑤, ⑥ and the three PCB mount ⑩. • The removed earth screws ⑤, ⑥ and the PCB mount ⑩ will be reused during the installation of the service P.C.

board, so keep them in a safe place.

(5) Remove the noise filter P.C. board assembly by unlocking the four PCB mounts used to secure the P.C. board ⑦.

(6) Remove the line filter ⑨ and its leads, both connected to the screw-on terminals ⑧ of the just-removed noise filter P.C. board (A), and reinstall them on the service P.C. board (A) by firmly connecting them to the screw-on terminals ⑧ in the same manner as before.

(7) Install the service P.C. boards (A) and (B) in the outdoor unit controller. (Make sure that they are firmly secured to the PCB mounts ⑦ and ⑩.)

Line Filter installation: Screw the line filter and the connecting wires together to the terminals as right figure. The torque of 6 screws of the line filter is “1.84ft･lbs (2.5Nm)”.

Please check that the screws connecting the line filter are not loose. If the screw is loose, the screw will generate heats, and cause the line filter to breakdown.

Do not use an electric driver or an air driver, as this can cause damage to the line filter.

Connect the wires according to the wiring diagram.

(8) Securely connect the service P.C. boards to the chassis using the earth screws ⑤, ⑥ removed in step (4). If either of the screws is loose, it will pose a risk of device failure by degrading noise control, so take care while engaging in the work. Nevertheless, do not use an electric or pneumatic screwdriver under any circumstances as it may lead to component damage.

(9) Connect the wiring using the connectors and Fastons removed in step (3). Make sure that the connectors and Fastons are connected correctly and securely.

(10) If any component on the P.C. board becomes crooked during replacement, straighten it without touching any other component.

(11) Mount the terminal block sub-assembly ① and firmly secure it using the screws ③.

(12) Securely connect the red, white and black leads from the service P.C. board (A) to the power supply terminal block ④ using the screws ②.

(13) Put the cover on, turn on the power, and check operation.

Connecting Wire

Line Filter

Line Filter

Connecting Wire

Line Filter

Screw tightening torque (N•m) Screw diameter Torque (N•m)

M6 2.5±0.1 M4 1.2±0.1 M3 0.5±0.1

Close-up view of terminal block sub-assembly

Close-up view of screw-on terminals ⑧

− 296 −

13-1-9. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure <18 to 22HP outdoor unit case (Left side of Noise Filter Box)>


(2) Remove the terminal block sub-assembly ①. Remove the screws ② on the power supply terminal block ④ and the screws ③ securing the terminal block subassembly ①.




Ex. MMY-MAP2206HT8P subject: left side Noise Filter P.C. board(MCC-1608)

Noise Filter P.C. board (43T6V624)

PCB Mount⑦ ⑦

Screw⑤

⑧

Screw-on terminal⑧ ⑧

⑧

⑧

⑧



⑦

Line Filter⑨

Remove terminal block sub-assembly①

②Screw③Screw

④Power supplyterminal block

③

③

Screw⑥

PCB Mount⑩

⑦

⑦

②

②

③

⑩

⑩

②

⑦

Wire Clamp⑪ (Packed in this service assembly)

− 297 −

(4) Remove the earth screws ⑤, ⑥ and the three PCB mount ⑩. • The removed earth screws ⑤, ⑥ and the PCB mount ⑩ will be reused during the installation of the service P.C.

board, so keep them in a safe place.



(7) Install the service P.C. boards (A) and (B) in the outdoor unit controller. Insert wire clamp ⑪ into the hole of P.C. board (A) (Make sure that they are firmly secured to the PCB mounts ⑦ and ⑩.)





(8) Securely connect the service P.C. boards to the chassis using the earth screws ⑤, ⑥ removed in step (4). If either of the screws is loose, it will pose a risk of device failure by degrading noise control, so take care while engaging in the work. Nevertheless, do not use an electric or pneumatic screwdriver under any circumstances as it may lead to component damage.



(11) Mount the terminal block sub-assembly ① and firmly secure it using the screws ③.

(12) Securely connect the red, white and black leads from the service P.C. board (A) to the power supply terminal block ④ using the screws ②.


Connecting Wire

Line Filter

Line Filter

Connecting Wire

Line Filter


M6 2.5±0.1 M4 1.2±0.1 M3 0.5±0.1

close-up view of terminal block sub-assembly


Terminal

Terminal

Wire Clamp

− 298 −

13-1-10. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure <18 to 22HP outdoor unit case (Right side of Noise Filter Box)>


(2) Remove the filter cover ①. Remove the screws ② on the Inverter assembly securing the filter cover ①.




(4) Remove the earthing screws ⑤, ⑥ and the three PCB mount ⑩. • he removed earthing screws ⑤, ⑥ and the PCB mount ⑩ will be reused during the installation of the service

P.C. board, so keep them in a safe place.

Ex. MMY-MAP2206HT8P subject: right side Noise Filter P.C. board(MCC-1608) Noise Filter P.C. board

(43T6V625) PCB Mount⑦⑦

⑦

Screw⑤

⑧

Screw-on terminal⑧

⑧

⑧

⑧

⑧



⑦

Line Filter⑨

Remove the filter cover①

② Screw⑥

PCB Mount⑩

⑦

⑦

S crew②

②

⑩ ⑩

②

filter cover①

− 299 −



(7) Install the service P.C. boards (A) and (B) in the outdoor unit controller. (Make sure that they are firmly secured to the PCB mounts ⑦ and ⑩.)





(8) Securely connect the service P.C. boards to the chassis using the earthing screws ⑤, ⑥ removed in step (4). If either of the screws is loose, it will pose a risk of device failure by degrading noise control, so take care while engaging in the work. Nevertheless, do not use an electric or pneumatic screwdriver under any circumstances as it may lead to component damage.



(11) Mount the filter cover ① and firmly secure it using the screws ②.


Connecting Wire

Line Filter

Line Filter

Connecting Wire

Line Filter


M6 2.5±0.1 M4 1.2±0.1 M3 0.5±0.1

close-up view of terminal block sub-assembly and filter cover


Terminal

Terminal

− 300 −

14 EXPLODED DIAGRAM/PARTS LISTSMMS-e OUTDOOR UNITMMY-MAP0806HT8(J)P, MAP1006HT8(J)P, MAP1206HT8(J)PMMY-MAP0806HT7(J)P, MAP1006HT7(J)P, MAP1206HT7(J)PMMY-MAP0806HT8(J)P-ME, MMP1006H8(J)P-ME, MAP1206HT8(J)P-MEMMY-MAP0806HT7P-ME, MAP1006HT7P-ME, MAP1206HT7P-MEMMY-MAP0806HT8(J)P-E, MAP1006HT8(J)P-E, MAP1206HT8(J)P-EMMY-MAP0806T8(J)P-E, MAP1006T8(J)P-E, MAP1206T8(J)P-EMMY-MAP0806HT8(J)P-TR, MAP1006HT8(J)P-TR, MAP1206HT8(J)P-TRMMY-MAP0806HT8P-A, MAP1006HT8P-A, MAP1206HT8P-AMMY-MAP0806T8(J)P, MAP1006T8(J)P, MAP1206T8(K)P, MAP14B6T8(J)PMMY-MAP0806T7(J)P, MAP1006T7(J)P, MAP1206T7(J)P, MAP14B6T7(J)PMMY-MAP0806T8P-SG, MAP1006T8P-SG, MAP1206T8P-SG, MAP14B6T8P-SGMMY-MAP0806T8(J)P-ID, MAP1006T8(J)P-ID, MAP1206T8(J)P-ID, MAP14B6T8(J)P-IDMMY-MAP0806T8(J)P-T, MAP1006T8(J)P-T, MAP1206T8(J)P-T, MAP14B6T8(J)P-T

− 301 −


※ 1) There is no part for T8(J)P-E model.

※ 1

)

− 302 −


− 303 −

For T8(J)P, T7(J)P, T8P-SG, T8(J)P-ID, T8(J)P-T model

− 304 −

Outdoor Unit (8，10，12HP)Model： MMY-MAP0806*，MMY-MAP1006*，MMY-MAP1206* REFRIGERATION CIRCUIT DIAGRAM

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor



4-way valve



Fusible plug

Liquid Tank

Accumulator



Compressor 1

(Inverter)

Oil Header





SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

059

028

030

039

023

046 029

035 029

045

052

037

088

057

086

051

031

029

059

022

062

019

058

021

028

037

027

038

037

088 057

050

039

026

026

039 057

087 037

047 047

017 017

057 057

089

028 028

089


− 305 −

– 260 –


Outdoor Unit (8，10，12HP)

Model： MMY-MAP0806*，MMY-MAP1006*，MMY-MAP1206*

REFRIGERATION CIRCUIT DIAGRAM

(TD2)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TO)

SV

SV

SV SV

M

(TL1)

SV

SV

SV

(TK5)

(TS3)

(TL3)

Reducer

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

(TS1)

(SV3B)

Fan

Fan motor



4-way valve



Fusible plug

Liquid Tank

Accumulator



Compressor 1

(Inverter)

Oil Header





SV

(SV52) Reducer

FP

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

059

028

030

039

023

046 029

035 029

045

052

037

088

057

086

051

031

029

059

022

062

019

058

021

028

037

027

038

037

088 057

050

039

026

026

039 057

087 037

047 047

017 017

057 057

089

028 028

089

SV (SV51) φ5.8

040

− 306 −

(TE1)

(TO)

SV

SV

SVSV

M

(TL1)

(TS3)

Reducer

(SV2)

(SV3D)

(SV42)(SV41)

(TS1)

FanFan motor

Right side

Left side(PMV1)

High-pressuresensor

Low-pressureOil separator

Fusibleplug

Accumulator

FP

059

030

028

023

086

051

029

045

052

037

046 029

088 057

037050

057088

039

026

057037

026 039

Outdoor Unit (8, 10, 12, 14HP)Model : MMY-MAP0806T*, MMY-MAP1006T*, MMY-MAP1206T*, MMY-MAP14B6T* REFRIGERATION CIRCUIT DIAGRAM

(TD2)

(TK2)(TK1)

(TD1)

(TK4)

SVSV

SV

SV

SV

(TK5)(TL3)

(SV3A)

(SV3C)

(PMV4)

(SV3B)

Liquid Tank

Accumulator

High-pressureswitch

High-pressureswitch

Compressor1

Oil Header

Liquid sideService valve

Gas sideService valve

Balance pipeService valve

Sub coolheat exchanger

Compressor2

SV

Solenoidvalve

Capillarytube

Checkvalve

Checkjoint

Strainer Temperaturesensor

Symbol

Distributor

Reducer

051

031

029

059

022

062

019

058

021

027

038028

037

026

047

057

087

037

026 039

017057

028

089

047

017057

028

089


− 307 −

SMMS-e OUTDOOR UNITMMY-MAP1406HT8(J)P, MAP1606HT8(J)P MMY-MAP1406HT7(J)P, MAP1606HT7(J)P MMY-MAP1406HT8(J)P-ME, MAP1606HT8(J)P-ME MMY-MAP1406HT7P-ME, MAP1606HT7P-ME MMY-MAP1406HT8(J)P-E, MAP1606HT8(J)P-E MMY-MAP1406T8(J)P-E, MAP1606T8(J)P-E MMY-MAP1406HT8(J)P-TR, MAP1606HT8(J)P-TR MMY-MAP1406HT8P-A, MAP1606HT8P-AMMY-MAP1406T8(J)P, MAP1606T8(J)P, MAP18B6T8(J)PMMY-MAP1406T7(J)P, MAP1606T7(J)P, MAP18B6T7(J)PMMY-MAP1406T8P-SG, MAP1606T8P-SG, MAP18B6T8P-SGMMY-MAP1406T8(J)P-ID, MAP1606T8(J)P-ID, MAP18B6T8(J)P-IDMMY-MAP1406T8(J)P-T, MAP1606T8(J)P-T, MAP18B6T8(J)P-T

− 308 −

– 309 –



※ 1

)

– 310–


– 311 –


– 312 –

Outdoor Unit (14，16HP)Model： MMY-MAP1406*，MMY-MAP1606*REFRIGERATION CIRCUIT DIAGRAM

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

060

030

031 059

024

035

029

045

037

046 029

057 088

052

037 050

057 088 039

023

023

039 057

087

047 047

037

018 018 057 057

089 089

028 028

037

028 038

027

086

051

031

029

060

020

063

019

058

021


– 313 –

Outdoor Unit (14，16HP)

Model： MMY-MAP1406*，MMY-MAP1606*

REFRIGERATION CIRCUIT DIAGRAM

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B)

(SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan

Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank




Oil Header



Reducer

Fusible plug

FP


Compressor 1

(Inverter)

Compressor 2

(Inverter)

SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

060 030

031

059

024

035

029

045

037

046 029

057 088

052

037 050

057 088 039

023

023

039 057

087

047 047

037

018 018 057 057

089 089

028 028

037

028 038

027

086

051

031

029

060

020

063

019

058

021

SV SV

(SV51)

(SV52)

041

040


仮仮仮仮

(TS1)

(TE1)

(TE2)

(TO)

SV

SV

SVSV

M

(TS3)

(TL1)(TL2)

(SV2)

(SV3D)

(SV42)(SV41)

FanFan motor

Right sideMain heat exchanger

Left sideMain heat exchanger



(PMV1)

(PMV3)

High-pressuresensor

Low-pressuresensor

Oil separator

Accumulator

Fusibleplug

FP

060

030

031 059

086

051

029

045

052

024

046 029

037057088

037

088 057

050

039

023 023 039

Outdoor Unit (14, 16, 18HP)Model : MMY-MAP1406T*, MMY-MAP1606T*, MMY-MAP16B6T*REFRIGERATION CIRCUIT DIAGRAM

(TD2)

(TK2)(TK1)

(TD1)

(TK4)

SVSV

(TL3)

SV

SV

SV

(TK5)

(SV3B)

(SV3A)

(SV42)(SV41)

(SV3C)

(PMV4)

Accumulator

Liquid Tank




Oil Header

High-pressureswitch

High-pressureswitch

Reducer


Compressor1

Compressor2

SV

Solenoidvalve

Capillarytube

Checkvalve

Checkjoint Strainer Temperature

sensor

Symbol

Distributor

051

031

029

060

020

063

019

058

021

037

028 038

027

023 023

057037

047

018057

028

089

087

047

018057

028

089

039


– 314 –

SMMS-e OUTDOOR UNITMMY-MAP1806HT8(J)P, MAP2006HT8(J)P, MAP2206HT8(J)P MMY-MAP1806HT7(J)P, MAP2006HT7(J)P, MAP2206HT7(J)P MMY-MAP1806HT8(J)P-ME, MAP2006HT8(J)P-MEMMY-MAP1806HT7P-ME, MAP2006HT7P-MEMMY-MAP1806HT8(J)P-E, MAP2006HT8(J)P-E, MAP2206HT8(J)P-E MMY-MAP1806T8(J)P-E, MAP2006T8(J)P-E, MAP2206T8(J)P-EMMY-MAP1806HT8(J)P-TR, MAP2006HT8(J)P-TR, MAP2206HT8(J)P-TR MMY-MAP1806HT8P-A, MAP2006HT8P-AMMY-MAP1806T8(J)P, MAP2006T8(J)P, MAP2206T8(J)PMMY-MAP1806T7(J)P, MAP2006T7(J)P, MAP2206T7(J)PMMY-MAP1806T8P-SG, MAP2006T8P-SG, MAP2206T8P-SGMMY-MAP1806T8(J)P-ID, MAP2006T8(J)P-ID, MAP2206T8(J)P-ID MMY-MAP1806T8(J)P-T, MAP2006T8(J)P-T, MAP2206T8(J)P-T

− 315 −

– 316 –



※ 1

)

– 317 –


– 318 –


Outdoor Unit (18，20，22HP)Model： MMY-MAP1806*，MMY-MAP2006*，MMY-MAP2206*REFRIGERATION CIRCUIT DIAGRAM

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42) (SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

060

030

031 059

025

046 029

057 089

037

089 057

050

039

024

024

039

037 057

088

047

047

018 018 057 057

028 028

090 090

037

087

051

031

029

064

020

063

019

058

021

028

037

027

038

052

045

029

035


− 319 −

Outdoor Unit (18，20，22HP)Model： MMY-MAP1806*，MMY-MAP2006*，MMY-MAP2206*REFRIGERATION CIRCUIT DIAGRAM

仮

(TD2)

(TS1)

(TE1)

(TK2) (TK1)

(TD1)

(TK4)

(TE2)

(TO)

SV

SV

SV SV

M M

(TG2)

(TG1)

(TL3)

SV

SV

SV

(TK5)

(TS3)

(TL1)

(TL2)

(SV3B) (SV3A)

(SV2)

(SV3D)

(SV42)(SV41)

(SV3C)

(PMV4)

Fan Fan

Fan motor Fan motor





(PMV1)

(PMV3)

4-way valve


Low-pressure sensor

Oil separator

Accumulator

Liquid Tank

Oil Header




Fusible plug

FP




SV

Solenoid valve

Capillary tube

Check valve


sensor

Symbol

Distributor

Reducer

Compressor 1

(Inverter)

Compressor 2

(Inverter)

060

030

031

059

025

046 029

057 089

037

089 057

050

039

024

024

039

037 057

088

047

047

018 018 057 057

028 028

090 090

037

087

051

031

029

064

020

063

019

058

021

028

037

027

038

052

045

029

SV SVSV

(SV51)

(SV52)

041

040


− 320 −

035

仮仮仮仮

(TS1)

(TE1)

(TE2)

(TO)

SV

SV

SVSV

M M

(TS3)

(TL1)(TL2)

(SV2)

(SV3D)

(SV42)(SV41)

Fan FanFan motor Fan motor

Right sideMain heat exchanger

Left sideMain heat exchanger



(PMV1)

(PMV3)

High-pressuresensor

Low-pressuresensor

Oil separator

Accumulator

Liquid Tank High- High-

Fusibleplug

FP

030

060

031 059

025

046 029

089057 037

050

057

037

089

039 024

087

051

029

045

052

024

039037 057

Outdoor Unit (18, 20, 22HP)Model : MMY-MAP1806T*, MMY-MAP2006T*, MMY-MAP2206T* REFRIGERATION CIRCUIT DIAGRAM

(TD2)

(TK2)(TK1)

(TD1)

(TK4)

SVSV

(TL3)

SV

SV

SV

(TK5)

(SV3B)(SV3A)

(SV3C)

(PMV4)

Accumulator

Liquid Tank

Oil Header

High-pressureswitch

High-pressureswitch





SV

Solenoidvalve

Capillarytube

Checkvalve

Checkjoint

Strainer Temperaturesensor

Symbol

Distributor

Reducer

Compressor1

Compressor2

031

029

064

020

063

019

058

021

028

037

038

027

039

047

018057

028

090

047

018057

028

090

037 057

088


− 321 −

MAP0806(H)T8(J)P

MAP1006(H)T8(J)P

MAP1206(H)T8(J)P

MAP1406(H)T8(J)P

MAP1606(H)T8(J)P

001 43T20341 FAN, PROPELLER 1 1 1 1 1002 43T20342 MOTOR, FAN, DC530-620V, 2300L 1 1 1 1 1003 43T19354 CABINET, AIR OUTLET 1 1 1 1 1004 43T19355 CABINET, SIDE, UP 2 2005 43T19353 GUARD, FAN 1 1 1 1 1006 43T00613 CABINET ASSY, SIDE, LEFT 1 1 1 1 1007 43T00614 CABINET ASSY, SIDE, RIGHT 1 1 1 1 1008 43T00624 CABINET, AIR INLET, FRONT 1 1 1009 43T00620 CABINET, AIR INLET, BACK 1 1 1010 43T00625 CABINET, AIR INLET, FRONT 1 1011 43T00622 CABINET, AIR INLET, BACK 1 1012 43T00615 CABINET ASSY, FRONT, DOWN 1 1 1013 43T00616 CABINET ASSY, BACK, DOWN 1 1 1014 43T00617 CABINET ASSY, FRONT, DOWN 1 1015 43T00618 CABINET ASSY, BACK, DOWN 1 1016 43T00623 PANEL 1 1 1 1 1017*5 43T41458 COMPRESSOR, RA421A3TB-20MD 2 2 2018*5 43T41485 COMPRESSOR, RA641A3TB-20M 2 2019 43T46393 VALVE, BALL, 25.4 1 1 1 1 1020 43T46381 VALVE, BALL, SBV-JA5GTC-1 1 1021 43T46366 VALVE, PACKED, 9.52 1 1 1 1 1022 43T46374 VALVE, PACKED, 12.7 1 1 1023 43T46444 VALVE, CHECK, UCV-A1505DRQ5 1 1 1 2 2024 43T46445 VALVE, CHECK, UCV-A1506DRQ5 1 1026 43T46398 VALVE, CHECKED, BCV-804DY 2 2 2027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1 1 1028 43T46400 VALVE, CHECKED, BCV-302DY 4 4 4 3 3029 43T46409 JOINT,CHECK 3 3 3 3 3030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1 1 1031 43T46448 VALVE, PMV, UKV-25D100 (φ2.5） 1 1 1 2 2032 43T46449 COIL, PMV 1 1 1 1 1033 43T46450 COIL, PMV 1 1034 43T46451 COIL, PMV 1 1 1 1 1035 43T46452 VALVE, 4WAY, SHF-35B-67-04 1 1 1 1 1

43T46453 *1,3,6 COIL, SOLENOID, AC220-240V 50HZ43T46457 *2，4 COIL, SOLENOID, AC208-230V 60HZ

037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4 4 4038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1 1 1039 43T46412 VALVE, 2WAY, FDF3A06 3 3 3 2 2

43T46455 *1,3,6,7 COIL, VALVE, 2WAY, TEV-SMOAJ2170A143T46458 *2，4 COIL, VALVE, 2WAY, TEV-SMOAQ2247A1

43T46403 *1,3,6,7 COIL, SOLENOID, VPV-MOAJ510B043T46404 *2，4 COIL, SOLENOID, VPV-MOAQ1843A0

43T46405 *1,3,6,7 COIL, VALVE, 2WAY, FQ-G59343T46406 *2，4 COIL, VALVE, 2WAY, FQ-D640

045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1 1 1046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1 1 1047 43T63359 SWITCH, PRESSURE 2 2 2 2 2048 43T57303 HEATER, CASE, 29W 240V 2 2 2 2 2049 43T57304 HEATER, CASE, 55W 240V 1 1 1 1 1050 43T48314 SEPARATOR 1 1 1 1 1051 43T48308 TANK, LIQUID 1 1 1 1 1052 43T48313 ACCUMULATOR 1 1 1 1 1053 43T43523 CONDENSER ASSY, TWO ROW, LEFT 1 1 1054 43T43524 CONDENSER ASSY, TWO ROW, RIGHT 1 1 1055 43T43525 CONDENSER ASSY, THREE ROW, LEFT 1 1056 43T43526 CONDENSER ASSY, THREE ROW, RIGHT 1 1

2

1 1

4

1 1

044 3 3 3

4

043 1 1 1

042 4 4 4

2

Ref. No. Part No. Description

036 1

Q'ty/Set MMY-

1 1

*1) For HT8(J)P model *2) For HT7(J)P model *3) For HT8(J)P-ME model *4) For HT7P-ME model *5) Due to the service compressor for Brazil is now acquiring the INMETRO certification (No371/328/163/ (402), we don't carry it as a service parts. Thus please contact the sales company when necessary.*6) For HT8P-A model


− 322 −*7) For T8(J)P-E model

MAP0806(H)T8(J)P

MAP1006(H)T8(J)P

MAP1206(H)T8(J)P

MAP1406(H)T8(J)P

MAP1606(H)T8(J)P

057 43T47388 STRAINER 5 5 5 5 5058 43T47389 STRAINER 1 1 1 1 1059 43T47390 STRAINER 2 2 2 1 1060 43T47392 STRAINER 2 2062 43T47394 STRAINER 1 1 1063 43T47395 STRAINER 1 1064 43T49348 RUBBER, SUPPORTER, PIPE 1 1 1 2 2065 43T49349 RUBBER, SUPPORTER, PIPE 1 1 1 6 6066 43T49350 RUBBER, SUPPORTER, PIPE 3 3 3067 43T49351 RUBBER, SUPPORTER, PIPE 2 2 2 5 5068 43T49352 RUBBER, SUPPORTER, PIPE 1 1 1 3 3069 43T49353 RUBBER, SUPPORTER, PIPE 1 1 1 3 3070 43T49354 RUBBER, SUPPORTER, PIPE 2 2 2 2 2071 43T49355 RUBBER, SUPPORTER, PIPE 1 1 1 2 2072 43T49347 RUBBER, SUPPORTER, PIPE 4 4 4 4 4073 43T49365 RUBBER, SUPPORTER, PIPE 1 1074 43T49360 RUBBER, SUPPORTER, PIPE 2 2 2075 43T49358 BAND, FIX 5 5 5 8 8076 43T19333 HOLDER, SENSOR 11 11 11 15 15077 43T01310 MARK, TOSHIBA 1 1 1 1 1078 43T63358 HOLDER, NFC 1 1 1 1 1079 43T39351 NUT, FLANGE 1 1 1 1 1080 43T39350 WASHER 1 1 1 1 1081 43T47385 BOLT, COMPRESSOR 6 6 6 6 6082 43T49357 RUBBER, CUSHION 6 6 6 6 6083 43T47333 BONNET, 1/2 IN 1 1 1084 43T47332 BONNET, 3/8 IN 1 1 1 1 1085 43T47334 BONNET, 5/8 IN 1 1086 43T49338 PLUG, FUSIBLE 1 1 1 1 1087 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1 1 1088 43T47375 TUBE, CAPILLARY, ID 1.0 1 1 1 1 1089 43T47376 TUBE, CAPILLARY, ID 1.2 1 1 1 1 1

43T85592 *1

43T85593 *2

43T85601 *3

43T85602 *4

1 1 1

Ref. No. Part No. DescriptionQ'ty/Set MMY-

090 OWNER'S MANUAL 1 1

*1) For HT8(J)P model *2) For HT7(J)P model *3) For HT8(J)P-ME model *4) For HT7P-ME model *6) For HT8P-A model*7) For T8(J)P-E model

1 1

43T85603 *6

− 323 −

43T85599 *7

MAP1806(H)T8(J)P

MAP2006 MAP2206

001 43T20341 FAN, PROPELLER 2 2 2002 43T20343 MOTOR, FAN, DC530-620V, 3500L 2 2 2003 43T19361 CABINET, AIR OUTLET 2 2 2005 43T19353 GUARD, FAN 2 2 2006 43T00663 CABINET ASSY, SIDE, LEFT 1 1 1007 43T00664 CABINET ASSY, SIDE, RIGHT 1 1 1008 43T00665 CABINET, AIR INLET, FRONT 1 1 1009 43T00666 CABINET, AIR INLET, BACK 1 1 1011 43T00622 CABINET, AIR INLET, BACK 2 2 2012 43T00667 CABINET ASSY, FRONT, DOWN 1 1 1013 43T00668 CABINET ASSY, BACK, DOWN 1 1 1014 43T00669 CABINET ASSY, FRONT, DOWN 1 1 1015 43T00618 CABINET ASSY, BACK, DOWN 1 1 1016 43T00623 PANEL 1 1 1

6018* 43T41485 COMPRESSOR, RA641A3TB-20M 2 2 2019 43T46393 VALVE, BALL, 25.4 1 1 1020 43T46456 VALVE, BALL, SBV-JA6GTC-1 1 1 1021 43T46366 VALVE, PACKED, 9.52 1 1 1024 43T46445 VALVE, CHECK, UCV-A1506DRQ5 2 2 2025 43T46446 VALVE, CHECK, UCV-A1507DR 1 1 1027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1028 43T46400 VALVE, CHECKED, BCV-302DY 3 3 3029 43T46409 JOINT,CHECK 3 3 3030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1031 43T46448 VALVE, PMV, UKV-25D100 (φ2.5） 2 2 2032 43T46449 COIL, PMV 1 1 1033 43T46450 COIL, PMV 1 1 1034 43T46451 COIL, PMV 1 1 1035 43T46452 VALVE, 4WAY, SHF-35B-67-04 1 1 1

43T46453 *2,4,7 COIL, SOLENOID, AC220-240V 50HZ43T46457 *3，5 COIL, SOLENOID, AC208-230V 60HZ

037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1039 43T46412 VALVE, 2WAY, FDF3A06 2 2 2

43T46455 *2,4,7,8 COIL, VALVE, 2WAY, TEV-SMOAJ2170A143T46458 *3，5 COIL, VALVE, 2WAY, TEV-SMOAQ2247A143T46403 *2,4,7,8 COIL, SOLENOID, VPV-MOAJ510B043T46404 *3，5 COIL, SOLENOID, VPV-MOAQ1843A043T46405 *2,4,7,8 COIL, VALVE, 2WAY, FQ-G59343T46406 *3，5 COIL, VALVE, 2WAY, FQ-D640

045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1047 43T63359 SWITCH, PRESSURE 2 2 2048 43T57303 HEATER, CASE, 29W 240V 2 2 2049 43T57304 HEATER, CASE, 55W 240V 1 1 1050 43T48314 SEPARATOR 1 1 1051 43T48309 TANK, LIQUID 1 1 1052 43T48312 ACCUMULATOR 1 1 1055 43T43527 CONDENSER ASSY, THREE ROW, LEFT 1 1 1056 43T43528 CONDENSER ASSY, THREE ROW, RIGHT 1 1 1

Q'ty/Set MMY-

2 2 2

1 1 1

1 1 1

4 4 4


036

044

043

042

*1) There is no lineup for Middle-East and Australia/New Zealand 22HP models. There is no anti-corrosion heavy protention models for 60Hz version of Middle-East.

*2) For HT8(J)P model *3) For HT7(J)P model *4) For HT8(J)P-ME model *5) For HT7P-ME model *6) Due to the service compressor for Brazil is now acquiring the INMETRO certification (No371/328/163/ (402), we don't carry it as a service parts. Thus please contact the sales company when necessary.*7) For HT8P-A model*8) For T8(J)P-E model

− 324 −

(H)T8(J)P (H)T8(J)P

MAP1806(H)T8(J)P

MAP2006 MAP2206

057 43T47388 STRAINER 5 5 5058 43T47389 STRAINER 1 1 1059 43T47390 STRAINER 1 1 1060 43T47392 STRAINER 1 1 1063 43T47395 STRAINER 1 1 1064 43T47400 STRAINER 1 1 1065 43T49348 RUBBER, SUPPORTER, PIPE 3 3 3066 43T49349 RUBBER, SUPPORTER, PIPE 5 5 5067 43T49350 RUBBER, SUPPORTER, PIPE 3 3 3068 43T49351 RUBBER, SUPPORTER, PIPE 3 3 3069 43T49352 RUBBER, SUPPORTER, PIPE 4 4 4070 43T49353 RUBBER, SUPPORTER, PIPE 3 3 3071 43T49354 RUBBER, SUPPORTER, PIPE 2 2 2072 43T49355 RUBBER, SUPPORTER, PIPE 1 1 1073 43T49347 RUBBER, SUPPORTER, PIPE 3 3 3074 43T49365 RUBBER, SUPPORTER, PIPE 1 1 1075 43T49360 RUBBER, SUPPORTER, PIPE 0 0 0076 43T49358 BAND, FIX 7 7 7077 43T19333 HOLDER, SENSOR 15 15 15078 43T01310 MARK, TOSHIBA 1 1 1079 43T63358 HOLDER, NFC 1 1 1080 43T39351 NUT, FLANGE 2 2 2081 43T39350 WASHER 2 2 2082 43T47385 BOLT, COMPRESSOR 6 6 6083 43T49357 RUBBER, CUSHION 6 6 6084 43T47401 BONNET, 3/4 IN 1 1 1085 43T47332 BONNET, 3/8 IN 1 1 1087 43T49338 PLUG, FUSIBLE 1 1 1088 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1089 43T47375 TUBE, CAPILLARY, ID 1.0 1 1 1090 43T47376 TUBE, CAPILLARY, ID 1.2 1 1 1

43T85592*2


Q'ty/Set MMY-

091 OWNER'S MANUAL 1 1 1

*1) There is no lineup for Middle-East and Australia/New Zealand 22HP models.

43T85593*3

43T85601*4

43T85602*5

There is no anti-corrosion heavy protention models for 60Hz version of Middle-East. *2) For HT8(J)P model *3) For HT7(J)P model *4) For HT8(J)P-ME model *5) For HT7P-ME model *7) For HT8P-A model*8) For T8(J)P-E model

43T85603*7

− 325 −

(H)T8(J)P (H)T8(J)P

43T85599*8


001 43T20341 FAN, PROPELLER 1 1 1 1 1002 43T20342 MOTOR, FAN, DC530-620V, 2300L 1 1 1 1 1003 43T19354 CABINET, AIR OUTLET 1 1 1 1 1004 43T19355 CABINET, SIDE, UP 2 2005 43T19359 GUARD, FAN 1 1 1 1 1006 43T00613 CABINET ASSY, SIDE, LEFT 1 1 1 1 1007 43T00614 CABINET ASSY, SIDE, RIGHT 1 1 1 1 1008 43T00624 CABINET, AIR INLET, FRONT 1 1 1009 43T00620 CABINET, AIR INLET, BACK 1 1 1010 43T00625 CABINET, AIR INLET, FRONT 1 1011 43T00622 CABINET, AIR INLET, BACK 1 1012 43T00615 CABINET ASSY, FRONT, DOWN 1 1 1013 43T00616 CABINET ASSY, BACK, DOWN 1 1 1014 43T00617 CABINET ASSY, FRONT, DOWN 1 1015 43T00618 CABINET ASSY, BACK, DOWN 1 1016 43T00623 PANEL 1 1 1 1 1017 43T41458 C0MPRESSOR, RA421A3TB-20MD 2 2 2018 43T41485 C0MPRESSOR, RA641A3TB-20M 2 2019 43T46393 VALVE, BALL, 25.4 1 1 1 1 1020 43T46381 VALVE, BALL, SBV-JA5GTC-1 1 1021 43T46366 VALVE, PACKED, 9.52 1 1 1 1 1022 43T46374 VALVE, PACKED, 12.7 1 1 1023 43T46444 VALVE, CHECK, UCV-A1505DRQ5 1 1 1 2 2024 43T46445 VALVE, CHECK, UCV-A1506DRQ5 1 1025 43T46446 VALVE, CHECK, UCV-A1507DR026 43T46398 VALVE, CHECKED, BCV-804DY 2 2 2027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1 1 1028 43T46400 VALVE, CHECKED, BCV-302DY 4 4 4 3 3029 43T46409 J0INT,CHECK 3 3 3 3 3030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1 1 1031 43T46448 VALVE, PMV, UKV-25Ｄ100 (φ2.5） 1 1 1 2 2032 43T46449 COIL, PMV 1 1 1 1 1033 43T46450 COIL, PMV 1 1034 43T46451 COIL, PMV 1 1 1 1 1035 43T46452 VALVE, 4WAY, SHF-35B-67-04 1 1 1 1 1036 43T46453 *1 COIL, SOLENOID, AC220V-240 50HZ 1 1 1 1 1037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4 4 4038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1 1 1039 43T46412 VALVE, 2WAY, FDF3A06 3 3 3 2 2040 43T46459 VALVE, 2WAY, FDF6A42 1 1 1 1 1041 43T46460 VALVE, 2WAY, FDF11A16 1 1042 43T46455 COIL, VALVE, 2WAY, TEV-SMOAJ2170A1 4 4 4 4 4043 43T46403 COIL, SOLENOID, VPV-MOAJ510B0 1 1 1 1 1044 43T46405 COIL, VALVE, 2WAY, FQ-G593 4 4 4 4 4045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1 1 1046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1 1 1047 43T63359 SWITCH, PRESSURE 2 2 2 2 2048 43T57303 HEATER, CASE, 29W 240V 2 2 2 2 2049 43T57304 HEATER, CASE, 55W 240V 1 1 1 1 1050 43T48314 SEPARATOR 1 1 1 1 1051 43T48308 TANK, LIQUID 1 1 1 1 1052 43T48313 ACCUMULATOR 1 1 1 1 1053 43T43523 CONDENSER ASSY, TWO ROW, LEFT 1 1 1054 43T43524 CONDENSER ASSY, TWO ROW, RIGHT 1 1 1055 43T43525 CONDENSER ASSY, THREE ROW, LEFT 1 1056 43T43526 CONDENSER ASSY, THREE ROW, RIGHT 1 1

MAP1206 MAP1406 MAP1606Q'ty/Set MMY-

Ref. No. Part No. Description MAP0806HT8(J)P

MAP1006

− 326 −

HT8(J)P HT8(J)P HT8(J)P HT8(J)P

057 43T47388 STRAINER 5 5 5 5 5058 43T47389 STRAINER 1 1 1 1 1059 43T47390 STRAINER 2 2 2 1 1060 43T47392 STRAINER 2 2061 43T47393 STRAINER062 43T47394 STRAINER 1 1 1063 43T47395 STRAINER 1 1064 43T49348 RUBBER, SUPPORTER, PIPE 1 1 1 2 2065 43T49349 RUBBER, SUPPORTER, PIPE 1 1 1 6 6066 43T49350 RUBBER, SUPPORTER, PIPE 3 3 3 1 1067 43T49351 RUBBER, SUPPORTER, PIPE 2 2 2 5 5068 43T49352 RUBBER, SUPPORTER, PIPE 1 1 1 3 3069 43T49353 RUBBER, SUPPORTER, PIPE 1 1 1 3 3070 43T49354 RUBBER, SUPPORTER, PIPE 2 2 2 2 2071 43T49355 RUBBER, SUPPORTER, PIPE 1 1 1 2 2072 43T49347 RUBBER, SUPPORTER, PIPE 4 4 4 4 4073 43T49365 RUBBER, SUPPORTER, PIPE 1 1074 43T49360 RUBBER, SUPPORTER, PIPE 2 2 2075 43T49358 BAND, FIX 5 5 5 8 8076 43T19333 HOLDER, SENSOR 11 11 11 15 15077 43T01310 MARK, TOSHIBA 1 1 1 1 1078 43T63358 HOLDER, NFC 1 1 1 1 1079 43T39351 NUT, FLANGE 1 1 1 1 1080 43T39350 WASHER 1 1 1 1 1081 43T47385 BOLT, COMPRESSOR 6 6 6 6 6082 43T49357 RUBBER, CUSHION 6 6 6 6 6083 43T47333 BONNET, 1/2 IN 1 1 1084 43T47332 BONNET, 3/8 IN 1 1 1 1 1085 43T47334 BONNET, 5/8 IN 1 1086 43T49338 PLUG, FUSIBLE 1 1 1 1 1087 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1 1 1088 43T47375 TUBE, CAPILLARY, ID 1.0 1 1 1 1 1089 43T47376 TUBE, CAPILLARY, ID 1.2 1 1 1 1 1

43T85599 *1

43T85600 *2


MAP0806HT8(J)P

MAP1006 MAP1206 MAP1406 MAP1606

1 1090 OWNER'S MANUAL 1 1 1

*1) For HT8(J)P-E model*2) For HT8(J)P-TR model

− 327 −

HT8(J)P HT8(J)P HT8(J)P HT8(J)P

001 43T20341 FAN, PROPELLER 2 2 2002 43T20343 MOTOR, FAN, DC530-620V, 3500L 2 2 2003 43T19361 CABINET, AIR OUTLET 2 2 2004005 43T19359 GUARD, FAN 2 2 2006 43T00663 CABINET ASSY, SIDE, LEFT 1 1 1007 43T00664 CABINET ASSY, SIDE, RIGHT 1 1 1008 43T00665 CABINET, AIR INLET, FRONT 1 1 1009 43T00666 CABINET, AIR INLET, BACK 1 1 1010011 43T00622 CABINET, AIR INLET, BACK 2 2 2012 43T00667 CABINET ASSY, FRONT, DOWN 1 1 1013 43T00668 CABINET ASSY, BACK, DOWN 1 1 1014 43T00669 CABINET ASSY, FRONT, DOWN 1 1 1015 43T00618 CABINET ASSY, BACK, DOWN 1 1 1016 43T00623 PANEL 1 1 1017018 43T41485 C0MPRESSOR, RA641A3TB-20M 2 2 2019 43T46393 VALVE, BALL, 25.4 1 1 1020 43T46456 VALVE, BALL, SBV-JA6GTC-1 1 1 1021 43T46366 VALVE, PACKED, 9.52 1 1 1022023024 43T46445 VALVE, CHECK, UCV-A1506DRQ5 2 2 2025 43T46446 VALVE, CHECK, UCV-A1507DR 1 1 1026027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1028 43T46400 VALVE, CHECKED, BCV-302DY 3 3 3029 43T46409 J0INT,CHECK 3 3 3030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1031 43T46448 VALVE, PMV, UKV-25Ｄ100 (φ2.5） 2 2 2032 43T46449 COIL, PMV 1 1 1033 43T46450 COIL, PMV 1 1 1034 43T46451 COIL, PMV 1 1 1035 43T46452 VALVE, 4WAY, SHF-35B-67-04 1 1 1036 43T46453 *2 COIL, SOLENOID, AC220V-240 50HZ 1 1 1037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1039 43T46412 VALVE, 2WAY, FDF3A06 2 2 2040 43T46459 VALVE, 2WAY, FDF6A42 1 1 1041 43T46460 VALVE, 2WAY, FDF11A16 1 1 1042 43T46455 COIL, VALVE, 2WAY, TEV-SMOAJ2170A1 4 4 4043 43T46403 COIL, SOLENOID, VPV-MOAJ510B0 1 1 1044 43T46405 COIL, VALVE, 2WAY, FQ-G593 4 4 4045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1047 43T63359 SWITCH, PRESSURE 2 2 2048 43T57303 HEATER, CASE, 29W 240V 2 2 2049 43T57304 HEATER, CASE, 55W 240V 1 1 1050 43T48314 SEPARATOR 1 1 1051 43T48309 TANK, LIQUID 1 1 1052 43T48312 ACCUMULATOR 1 1 1053054055 43T43527 CONDENSER ASSY, THREE ROW, LEFT 1 1 1056 43T43528 CONDENSER ASSY, THREE ROW, RIGHT 1 1 1

MAP2206Q'ty/Set MMY-

Ref. No. Part No. Description MAP1806HT8(J)P

MAP2006

− 328 −

HT8(J)P HT8(J)P

057 43T47388 STRAINER 5 5 5058 43T47389 STRAINER 1 1 1059 43T47390 STRAINER 1 1 1060 43T47392 STRAINER 1 1 1061062063 43T47395 STRAINER 1 1 1064 43T47400 STRAINER 1 1 1065 43T49348 RUBBER, SUPPORTER, PIPE 3 3 3066 43T49349 RUBBER, SUPPORTER, PIPE 5 5 5067 43T49350 RUBBER, SUPPORTER, PIPE 3 3 3068 43T49351 RUBBER, SUPPORTER, PIPE 3 3 3069 43T49352 RUBBER, SUPPORTER, PIPE 4 4 4070 43T49353 RUBBER, SUPPORTER, PIPE 3 3 3071 43T49354 RUBBER, SUPPORTER, PIPE 2 2 2072 43T49355 RUBBER, SUPPORTER, PIPE 1 1 1073 43T49347 RUBBER, SUPPORTER, PIPE 3 3 3074 43T49365 RUBBER, SUPPORTER, PIPE 1 1 1075 43T49360 RUBBER, SUPPORTER, PIPE 0 0 0076 43T49358 BAND, FIX 7 7 7077 43T19333 HOLDER, SENSOR 15 15 15078 43T01310 MARK, TOSHIBA 1 1 1079 43T63358 HOLDER, NFC 1 1 1080 43T39351 NUT, FLANGE 2 2 2081 43T39350 WASHER 2 2 2082 43T47385 BOLT, COMPRESSOR 6 6 6083 43T49357 RUBBER, CUSHION 6 6 6084 43T47401 BONNET, 3/4 IN 1 1 1085 43T47332 BONNET, 3/8 IN 1 1 1086087 43T49338 PLUG, FUSIBLE 1 1 1088 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1089 43T47375 TUBE, CAPILLARY, ID 1.0 1 1 1090 43T47376 TUBE, CAPILLARY, ID 1.2 1 1 1

43T85599 *1

43T85600 *2


MAP1806HT8(J)P

MAP2006 MAP2206

091 OWNER'S MANUAL 1 1 1

*1) For HT8(J)P-E model *2) For HT8(J)P-TR model

− 329 −

HT8(J)P HT8(J)P

− 330 −


MAP0806T*(J)P

MAP1006T*(J)P

MAP1206T*(J)P

MAP14B6T*(J)P

001 43T20341 FAN, PROPELLER 1 1 1 1002 43T20342 MOTOR, FAN, DC530-620V, 2300L 1 1 1 1003 43T19354 CABINET, AIR OUTLET 1 1 1 1005 43T19353 GUARD, FAN 1 1 1 1006 43T00613 CABINET ASSY, SIDE, LEFT 1 1 1 1007 43T00614 CABINET ASSY, SIDE, RIGHT 1 1 1 1008 43T00624 CABINET, AIR INLET, FRONT 1 1 1 1009 43T00620 CABINET, AIR INLET, BACK 1 1 1 1012 43T00615 CABINET ASSY, FRONT, DOWN 1 1 1 1013 43T00616 CABINET ASSY, BACK, DOWN 1 1 1 1016 43T00623 PANEL 1 1 1 1017 43T41458 C0MPRESSOR, RA421A3TB-20MD 2 2 2 2019 43T46393 VALVE, BALL, 25.4 1 1 1 1021 43T46366 VALVE, PACKED, 9.52 1 1 1 1022 43T46374 VALVE, PACKED, 12.7 1 1 1 1023 43T46444 VALVE, CHECK, UCV-A1505DRQ5 1 1 1 1026 43T46398 VALVE, CHECKED, BCV-804DY 2 2 2 2027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1 1028 43T46400 VALVE, CHECKED, BCV-302DY 4 4 4 4029 43T46409 J0INT,CHECK 3 3 3 3030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1 1031 43T46448 VALVE, PMV, UKV-25Ｄ100 (φ2.5） 1 1 1 1032 43T46449 COIL, PMV 1 1 1 1033 43T46450 COIL, PMV034 43T46451 COIL, PMV 1 1 1 1037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4 4038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1 1039 43T46412 VALVE, 2WAY, FDF3A06 2 2 2 2

43T46455 *1,3,4,5 COIL, VALVE, 2WAY, TEV-SMOAJ2170A1 4 4 4 443T46458 *2 COIL, VALVE, 2WAY, TEV-SMOAQ2247A1 4 4 4 4

43T46403 *1,3,4,5 COIL, SOLENOID, VPV-MOAJ510B0 1 1 1 143T46404 *2 COIL, SOLENOID, VPV-MOAQ1843A0 1 1 1 1

43T46405 *1,3,4,5 COIL, VALVE, 2WAY, FQ-G593 2 2 2 243T46406 *2 COIL, VALVE, 2WAY, FQ-D640 2 2 2 2

045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1 1046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1 1047 43T63359 SWITCH, PRESSURE 2 2 2 2048 43T57303 HEATER, CASE, 29W 240V 2 2 2 2049 43T57304 HEATER, CASE, 55W 240V 1 1 1 1050 43T48314 SEPARATOR 1 1 1 1051 43T48308 TANK, LIQUID 1 1 1 1052 43T48313 ACCUMULATOR 1 1 1 1053 43T43523 CONDENSER ASSY, TWO ROW, LEFT 1 1 1 1054 43T43524 CONDENSER ASSY, TWO ROW, RIGHT 1 1 1 1


Q'ty/Set MMY-

042

043

044

*1) For T8(J)P *2) For T7(J)P *3) For T8P-SG *4) For T8(J)P-ID *5) For T8(J)P-T

− 331 −

MAP0806T*(J)P

MAP1006T*(J)P

MAP1206T*(J)P

MAP14B6T*(J)P

057 43T47388 STRAINER 5 5 5 5058 43T47389 STRAINER 1 1 1 1059 43T47390 STRAINER 2 2 2 2062 43T47394 STRAINER 1 1 1 1063 43T47395 STRAINER064 43T49348 RUBBER, SUPPORTER, PIPE 2 2 2 2065 43T49349 RUBBER, SUPPORTER, PIPE 2 2 2 2066 43T49350 RUBBER, SUPPORTER, PIPE 3 3 3 3067 43T49351 RUBBER, SUPPORTER, PIPE 2 2 2 2068 43T49352 RUBBER, SUPPORTER, PIPE 1 1 1 1069 43T49353 RUBBER, SUPPORTER, PIPE 1 1 1 1070 43T49354 RUBBER, SUPPORTER, PIPE 2 2 2 2071 43T49355 RUBBER, SUPPORTER, PIPE 1 1 1 1072 43T49347 RUBBER, SUPPORTER, PIPE 4 4 4 4074 43T49360 RUBBER, SUPPORTER, PIPE 2 2 2 2075 43T49358 BAND, FIX 6 6 6 6076 43T19333 HOLDER, SENSOR 11 11 11 11077 43T01310 MARK, TOSHIBA 1 1 1 1078 43T63358 HOLDER, NFC 1 1 1 1079 43T39351 NUT, FLANGE 1 1 1 1080 43T39350 WASHER 1 1 1 1081 43T47385 BOLT, COMPRESSOR 6 6 6 6082 43T49357 RUBBER, CUSHION 6 6 6 6083 43T47333 BONNET, 1/2 IN 1 1 1 1084 43T47332 BONNET, 3/8 IN 1 1 1 1086 43T49338 PLUG, FUSIBLE 1 1 1 1087 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1 1088 43T47375 TUBE, CAPILLARY, ID 1.0 1 1 1 1089 43T47376 TUBE, CAPILLARY, ID 1.2 1 1 1 1

43T85606 *1 1 1 1 143T85607 *2 1 1 1 143T85608 *3 1 1 1 143T85609 *4 1 1 1 143T85610 *5 1 1 1 1


Q'ty/Set MMY-

OWNER'S MANUAL090


− 332 −

MAP1406T*(J)P

MAP1606T*(J)P

MAP18B6T*(J)P

001 43T20341 FAN, PROPELLER 1 1 1

002 43T20342 MOTOR, FAN, DC530-620V, 2300L 1 1 1

003 43T19354 CABINET, AIR OUTLET 1 1 1

004 43T19355 CABINET, SIDE, UP 2 2 2

005 43T19353 GUARD, FAN 1 1 1

006 43T00613 CABINET ASSY, SIDE, LEFT 1 1 1

007 43T00614 CABINET ASSY, SIDE, RIGHT 1 1 1

010 43T00625 CABINET, AIR INLET, FRONT 1 1 1

011 43T00622 CABINET, AIR INLET, BACK 1 1 1

014 43T00617 CABINET ASSY, FRONT, DOWN 1 1 1

015 43T00618 CABINET ASSY, BACK, DOWN 1 1 1

016 43T00623 PANEL 1 1 1

018 43T41485 C0MPRESSOR, RA641A3TB-20M 2 2 2

019 43T46393 VALVE, BALL, 25.4 1 1 1

020 43T46381 VALVE, BALL, SBV-JA5GTC-1 1 1 1

021 43T46366 VALVE, PACKED, 9.52 1 1 1

023 43T46444 VALVE, CHECK, UCV-A1505DRQ5 2 2 2


027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1

028 43T46400 VALVE, CHECKED, BCV-302DY 3 3 3

029 43T46409 J0INT,CHECK 3 3 3

030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1

031 43T46448 VALVE, PMV, UKV-25Ｄ100 (φ2.5） 2 2 2

032 43T46449 COIL, PMV 1 1 1

033 43T46450 COIL, PMV 1 1 1

034 43T46451 COIL, PMV 1 1 1

037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4

038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1

039 43T46412 VALVE, 2WAY, FDF3A06 2 2 2

43T46455 *1,3,4,5

COIL, VALVE, 2WAY, TEV-SMOAJ2170A1 4 4 4

43T46458 *2

COIL, VALVE, 2WAY, TEV-SMOAQ2247A1 4 4 4

43T46403 *1,3,4,5

COIL, SOLENOID, VPV-MOAJ510B0 1 1 1

43T46404 *2

COIL, SOLENOID, VPV-MOAQ1843A0 1 1 1

43T46405 *1,3,4,5

COIL, VALVE, 2WAY, FQ-G593 2 2 2

43T46406 *2

COIL, VALVE, 2WAY, FQ-D640 2 2 2

045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1

046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1

047 43T63359 SWITCH, PRESSURE 2 2 2

048 43T57303 HEATER, CASE, 29W 240V 2 2 2

049 43T57304 HEATER, CASE, 55W 240V 1 1 1

050 43T48314 SEPARATOR 1 1 1

051 43T48308 TANK, LIQUID 1 1 1

052 43T48313 ACCUMULATOR 1 1 1

055 43T43525 CONDENSER ASSY, THREE ROW, LEFT 1 1 1

Q'ty/Set MMY-


042

043

044


− 333 −

MAP1406T*(J)P

MAP1606T*(J)P

MAP18B6T*(J)P

056 43T43526 CONDENSER ASSY, THREE ROW, RIGHT 1 1 1

057 43T47388 STRAINER 5 5 5

058 43T47389 STRAINER 1 1 1

059 43T47390 STRAINER 1 1 1

060 43T47392 STRAINER 2 2 2

063 43T47395 STRAINER 1 1 1

064 43T49348 RUBBER, SUPPORTER, PIPE 2 2 2










075 43T49358 BAND, FIX 8 8 8

076 43T19333 HOLDER, SENSOR 15 15 15

077 43T01310 MARK, TOSHIBA 1 1 1

078 43T63358 HOLDER, NFC 1 1 1

079 43T39351 NUT, FLANGE 1 1 1

080 43T39350 WASHER 1 1 1

081 43T47385 BOLT, COMPRESSOR 6 6 6

082 43T49357 RUBBER, CUSHION 6 6 6

084 43T47332 BONNET, 3/8 IN 1 1 1

085 43T47334 BONNET, 5/8 IN 1 1 1

086 43T49338 PLUG, FUSIBLE 1 1 1

087 43T47374 TUBE, CAPILLARY, ID 0.8 1 1 1



43T85606 *1 1 1 1

43T85607 *2 1 1 1

43T85608 *3 1 1 1

43T85609 *4 1 1 1

43T85610 *5 1 1 1


Q'ty/Set MMY-

090 OWNER'S MANUAL


− 334 −

MAP1806T*(J)P

MAP2006T*(J)P

MAP2206T*(J)P

001 43T20341 FAN, PROPELLER 2 2 2

002 43T20343 MOTOR, FAN, DC530-620V, 3500L 2 2 2

003 43T19361 CABINET, AIR OUTLET 2 2 2

005 43T19353 GUARD, FAN 2 2 2

006 43T00663 CABINET ASSY, SIDE, LEFT 1 1 1

007 43T00664 CABINET ASSY, SIDE, RIGHT 1 1 1

008 43T00665 CABINET, AIR INLET, FRONT 1 1 1







016 43T00623 PANEL 1 1 1

018 43T41485 C0MPRESSOR, RA641A3TB-20M 2 2 2

019 43T46393 VALVE, BALL, 25.4 1 1 1

020 43T46456 VALVE, BALL, SBV-JA6GTC-1 1 1 1

021 43T46366 VALVE, PACKED, 9.52 1 1 1


025 43T46446 VALVE, CHECK, UCV-A1507DR 1 1 1

027 43T46399 VALVE, CHECK, BCV-603DY 1 1 1

028 43T46400 VALVE, CHECKED, BCV-302DY 3 3 3

029 43T46409 J0INT,CHECK 3 3 3

030 43T46447 VALVE, PMV, PAM-BA2YGTF-1 (φ4.8） 1 1 1

031 43T46448 VALVE, PMV, UKV-25Ｄ100 (φ2.5） 2 2 2

032 43T46449 COIL, PMV 1 1 1

033 43T46450 COIL, PMV 1 1 1

034 43T46451 COIL, PMV 1 1 1

037 43T46454 VALVE, 2WAY, TEV-S1220DQ50 4 4 4

038 43T46411 VALVE , 2WAY, VPV-603DQ2 1 1 1

039 43T46412 VALVE, 2WAY, FDF3A06 2 2 2

43T46455 *1,3,4,5

COIL, VALVE, 2WAY, TEV-SMOAJ2170A1 4 4 4

43T46458 *2

COIL, VALVE, 2WAY, TEV-SMOAQ2247A1 4 4 4

43T46403 *1,3,4,5

COIL, SOLENOID, VPV-MOAJ510B0 1 1 1

43T46404 *2

COIL, SOLENOID, VPV-MOAQ1843A0 1 1 1

43T46405 *1,3,4,5

COIL, VALVE, 2WAY, FQ-G593 2 2 2

43T46406 *2

COIL, VALVE, 2WAY, FQ-D640 2 2 2

045 43T50357 SENSOR ASSY, LOW PRESSURE 1 1 1

046 43T50358 SENSOR ASSY, HIGH PRESSURE 1 1 1

047 43T63359 SWITCH, PRESSURE 2 2 2

048 43T57303 HEATER, CASE, 29W 240V 2 2 2

049 43T57304 HEATER, CASE, 55W 240V 1 1 1

050 43T48314 SEPARATOR 1 1 1

051 43T48309 TANK, LIQUID 1 1 1

052 43T48312 ACCUMULATOR 1 1 1

055 43T43527 CONDENSER ASSY, THREE ROW, LEFT 1 1 1

043


Q'ty/Set MMY-

042

044


− 335 −

MAP1806

T*(J)P

MAP2006

T*(J)P

MAP2206

T*(J)P

056 43T43528 CONDENSER ASSY, THREE ROW, RIGHT 1 1 1

057 43T47388 STRAINER 5 5 5

058 43T47389 STRAINER 1 1 1

059 43T47390 STRAINER 1 1 1

060 43T47392 STRAINER 1 1 1

063 43T47395 STRAINER 1 1 1

064 43T47400 STRAINER 1 1 1











076 43T49358 BAND, FIX 7 7 7

077 43T19333 HOLDER, SENSOR 15 15 15

078 43T01310 MARK, TOSHIBA 1 1 1

079 43T63358 HOLDER, NFC 1 1 1

080 43T39351 NUT, FLANGE 2 2 2

081 43T39350 WASHER 2 2 2

082 43T47385 BOLT, COMPRESSOR 6 6 6

083 43T49357 RUBBER, CUSHION 6 6 6

084 43T47401 BONNET, 3/4 IN 1 1 1

085 43T47332 BONNET, 3/8 IN 1 1 1

087 43T49338 PLUG, FUSIBLE 1 1 1




43T85606 *1 1 1 1

43T85607 *2 1 1 1

43T85608 *3 1 1 1

43T85609 *4 1 1 1

43T85610 *5 1 1 1


Q'ty/Set MMY-

091 OWNER'S MANUAL


Inverter AssemblyMMY-MAP0806HT8(J)P, MAP1006HT8(J)P, MAP1206HT8(J)PMMY-MAP0806HT7(J)P, MAP1006HT7(J)P, MAP1206HT7(J)PMMY-MAP0806HT8(J)P-ME, MAP1006HT8(J)P-ME, MAP1206HT8(J)P-ME MMY-MAP0806HT7P-ME, MAP1006HT7P-ME, MAP1206HT7P-ME MMY-MAP0806HT8(J)P-E, MAP1006HT8(J)P-E, MAP1206HT8(J)P-E MMY-MAP0806T8(J)P-E, MAP1006T8(J)P-E, MAP1206T8(J)P-EMMY-MAP0806HT8(J)P-TR, MAP1006HT8(J)P-TR, MAP1206HT8(J)P-TR MMY-MAP0806HT8P-A, MAP1006HT8P-A, MAP1206HT8P-AMMY-MAP0806T8(J)P, MAP1006T8(J)P, MAP1206T8(J)P, MAP14B6T8(J)PMMY-MAP0806T7(J)P, MAP1006T7(J)P, MAP1206T7(J)P, MAP14B6T7(J)PMMY-MAP0806T8P-SG, MAP1006T8P-SG, MAP1206T8P-SG, MAP14B6T8P-SGMMY-MAP0806T8(J)P-ID, MAP1006T8(J)P-ID, MAP1206T8(J)P-ID, MAP14B6T8(J)P-IDMMY-MAP0806T8(J)P-T, MAP1006T8(J)P-T, MAP1206T8(J)P-T, MAP14B6T8(J)P-T

− 336 −

Inverter AssemblyMMY-MAP1406HT8(J)P, MAP1606HT8(J)P MMY-MAP1406HT7(J)P, MAP1606HT7(J)P MMY-MAP1406HT8(J)P-ME, MAP1606HT8(J)P-ME MMY-MAP1406HT7P-ME, MAP1606HT7P-ME MMY-MAP1406HT8(J)P-E, MAP1606HT8(J)P-E MMY-MAP1406T8(J)P-E, MAP1606T8(J)P-E MMY-MAP1406HT8(J)P-TR, MAP1606HT8(J)P-TR MMY-MAP1406HT8P-A, MAP1606HT8P-AMMY-MAP1406T8(J)P, MAP1606T8(J)P, MAP1806T8(J)P, MMY-MAP1406T7(J)P, MAP1606T7(J)P, MAP18B6T7(J)PMMY-MAP1406T8P-SG, MAP1606T8P-SG, MAP-18B6T8P-SGMMY-MAP1406T8(J)P-ID, MAP1606T8(J)P-ID, MAP18B6T8(J)P-ID MMY-MAP1406T8(J)P-T, MAP1606T8(J)P-T, MAP18B6T8(J)P-T

− 337 −

Inverter AssemblyMMY-MAP1806HT8(J)P, MAP2006HT8(J)P, MAP2206HT8(J)P MMY-MAP1806HT7(J)P, MAP2006HT7(J)P, MAP2206HT7(J)P MMY-MAP1806HT8(J)P-ME, MAP2006HT8(J)P-MEMMY-MAP1806HT7P-ME, MAP2006HT7P-MEMMY-MAP1806HT8(J)P-E, MAP2006HT8(J)P-E, MAP2206HT8(J)P-E MMY-MAP1806T8(J)P-E, MAP2006T8(J)P-E, MAP2206T8(J)P-EMMY-MAP1806HT8(J)P-TR, MAP2006HT8(J)P-TR, MAP2206HT8(J)P-TR MMY-MAP1806HT8P-A, MAP2006HT8P-AMMY-MAP1806T8(J)P, MAP2006T8(J)P, MAP2206T8(J)PMMY-MAP1806T7(J)P, MAP2006T7(J)P, MAP2206T7(J)PMMY-MAP1806T8P-SG, MAP2006T8P-SG, MAP2206T8P-SGMMY-MAP1806T8(J)P-ID, MAP2006T8(J)P-ID, MAP2206T8(J)P-IDMMY-MAP1806T8(J)P-T, MAP2006T8(J)P-T, MAP2206T8(J)P-T

− 338 −

MAP0806(H)T*(J)P*

MAP1006(H)T*(J)P*

MAP1206(H)T*(J)P*

MAP1406(H)T*(J)P*

MAP1606(H)T*(J)P*

701 43T50347 SENSOR ASSY, SERVICE 4 4 4 8 8702 43T50356 SERVICE-SENSOR 2 2703 43T95303 SUPPORTER, ASSY 3 3 3 3 3704 43T50348 SENSOR,TD(F6) 6 6 6 6 6705 43T60437 TERMINAL, 4P 1 1 1 1 1706 43T58317 REACTOR, CH-79 2 2 2706 43T58330 REACTOR, CH-90 2 2707 43T60453 TERMINAL, 4P 1 1708 43T52320 CONTACTOR, MAGNETIC 1 1 1 1 1709 43T60457 TERMINAL, 8P 1 1 1 1 1710 43T95301 SUPORT, SPACER 7 7 7 7 7711 43T95302 SPACER(EDGE) 10 10 10 10 10712 43T6V623 PC BOARD ASSY, NOISE FILTER, MCC-1608 1 1 1 1 1715 43T6V626 PC BOARD ASSY, INTERFACE, MCC-1673 1 1 1 1 1716 43T6V627 PC BOARD ASSY, FAN-IPDU, MCC-1659 1 1 1 1 1717 43T6V628 PC BOARD ASSY, COMP-IPDU, MCC-1669 2 2 2717 43T6V629 PC BOARD ASSY, COMP-IPDU, MCC-1669 2 2718 43T6V631 PC BOARD ASSY, NFC, MCC-1667 1 1 1 1 1719 43T50345 THERMISTOR, PTC 1 1 1 1 1720 43T96307 BUSHING 3 3 3 3 3721 43T96306 COLLAR 3 3 3 3 3722 43T55367 FILTER, LINE 1 1 1 1 1723 43T60454 LEAD ASSY, COMPRESSOR 2 2 2723 43T60455 LEAD ASSY, COMPRESSOR 2 2724 43T6V646 PC BOARD ASSY, DRC, MCC-1653 1※ 1※ 1※ 1※ 1※725 43T58323 TRANSFORMER (VT-02 VRK) 1※ 1※ 1※ 1※ 1※

※For MMY-MAP****HT8P-A

Q'ty/Set MMY-


− 339 −

MAP1806(H)T*(J)P*

MAP2006(H)T*(J)P*

MAP2206(H)T*(J)P*

701 43T50347 SENSOR ASSY, SERVICE 8 8 8702 43T50356 SERVICE-SENSOR 2 2 2703 43T95303 SUPPORTER, ASSY 3 3 3704 43T50348 SENSOR,TD(F6) 6 6 6705 43T60437 TERMINAL, 4P 1 1 1706 43T58331 REACTOR, CH-65 2 2 2707 43T60453 TERMINAL, 4P 1 1 1708 43T52320 CONTACTOR, MAGNETIC 2 2 2709 43T60457 TERMINAL, 8P 1 1 1710 43T95301 SUPORT, SPACER 10 10 10711 43T95302 SPACER(EDGE) 18 18 18713 43T6V624 PC BOARD ASSY, NOISE FILTER, MCC-1608 1 1 1714 43T6V625 PC BOARD ASSY, NOISE FILTER, MCC-1608 1 1 1715 43T6V626 PC BOARD ASSY, INTERFACE, MCC-1673 1 1 1716 43T6V627 PC BOARD ASSY, FAN-IPDU, MCC-1659 2 2 2717 43T6V630 PC BOARD ASSY, COMP-IPDU, MCC-1660 2 2 2718 43T6V631 PC BOARD ASSY, NFC, MCC-1667 1 1 1719 43T50345 THERMISTOR, PTC 2 2 2720 43T96307 BUSHING 6 6 6721 43T96306 COLLAR 6 6 6722 43T55366 FILTER, LINE 2 2 2723 43T60456 LEAD ASSY, COMPRESSOR 2 2 2724 43T6V646 PC BOARD ASSY, DRC, MCC-1653 1※ 1※725 43T58323 TRANSFORMER (VT-02 VRK) 1※ 1※

※For MMY-MAP****HT8P-A


Q'ty/Set MMY-

− 340 −

− 341 −

For T8(J)P, T8P-SG, T8(J)P-ID, T8(J)P-T model

MAP0806T*(J)P

MAP1006T*(J)P

MAP1206T*(J)P

MAP14B6T*(J)P

701 43T50347 SENSOR ASSY, SERVICE 4 4 4 4

703 43T95303 SUPPORTER, ASSY 3 3 3 3

704 43T50348 SENSOR,TD(F6) 6 6 6 6

705 43T60437 TERMINAL, 4P 1 1 1 1

706 43T58317 REACTOR, CH-79 2 2 2 2

708 43T52320 CONTACTOR, MAGNETIC 1 1 1 1

709 43T60457 TERMINAL, 8P 1 1 1 1

710 43T95301 SUPORT, SPACER 7 7 7 7

711 43T95302 SPACER(EDGE) 10 10 10 10

712 43T6V623 PC BOARD ASSY, NOISE FILTER, MCC-1608 1 1 1 1

715 43T6V626 PC BOARD ASSY, INTERFACE, MCC-1673 1 1 1 1

716 43T6V627 PC BOARD ASSY, FAN IPDU, MCC-1659 1 1 1 1

717 43T6V628 PC BOARD ASSY, COMP-IPDU, MCC-1669 2 2 2 2

718 43T6V631 PC BOARD ASSY, NFC, MCC-1667 1 1 1 1

719 43T50345 THERMISTOR, PTC 1 1 1 1

720 43T96307 BUSHING 3 3 3 3

721 43T96306 COLLAR 3 3 3 3

722 43T55367 FILTER, LINE 1 1 1 1

723 43T60454 LEAD ASSY, COMPRESSOR 2 2 2 2

Q'ty/Set MMY-


− 342 −

MAP1406T*(J)P

MAP1606T*(J)P

MAP18B6T*(J)P

701 43T50347 SENSOR ASSY, SERVICE 8 8 8

703 43T95303 SUPPORTER, ASSY 3 3 3

704 43T50348 SENSOR,TD(F6) 6 6 6

705 43T60437 TERMINAL, 4P 1 1 1

706 43T58330 REACTOR, CH-90 2 2 2

707 43T60453 TERMINAL, 4P 1 1 1

708 43T52320 CONTACTOR, MAGNETIC 1 1 1

709 43T60457 TERMINAL, 8P 1 1 1

710 43T95301 SUPORT, SPACER 7 7 7

711 43T95302 SPACER(EDGE) 10 10 10

712 43T6V623 PC BOARD ASSY, NOISE FILTER, MCC-1608 1 1 1

715 43T6V626 PC BOARD ASSY, INTERFACE, MCC-1673 1 1 1

716 43T6V627 PC BOARD ASSY, FAN IPDU, MCC-1659 1 1 1

717 43T6V629 PC BOARD ASSY, COMP-IPDU, MCC-1669 2 2 2

718 43T6V631 PC BOARD ASSY, NFC, MCC-1667 1 1 1

719 43T50345 THERMISTOR, PTC 1 1 1

720 43T96307 BUSHING 3 3 3

721 43T96306 COLLAR 3 3 3

722 43T55367 FILTER, LINE 1 1 1

723 43T60455 LEAD ASSY, COMPRESSOR 2 2 2


Q'ty/Set MMY-

− 343 −

MAP1806T*(J)P

MAP2006T*(J)P

MAP2206T*(J)P

701 43T50347 SENSOR ASSY, SERVICE 8 8 8

703 43T95303 SUPPORTER, ASSY 3 3 3

704 43T50348 SENSOR,TD(F6) 6 6 6

705 43T60437 TERMINAL, 4P 1 1 1

706 43T58331 REACTOR, CH-65 2 2 2

707 43T60453 TERMINAL, 4P 1 1 1

708 43T52320 CONTACTOR, MAGNETIC 2 2 2

709 43T60457 TERMINAL, 8P 1 1 1

710 43T95301 SUPORT, SPACER 10 10 10

711 43T95302 SPACER(EDGE) 18 18 18



715 43T6V626 PC BOARD ASSY, INTERFACE, MCC-1673 1 1 1

716 43T6V627 PC BOARD ASSY, FAN IPDU, MCC-1659 2 2 2

717 43T6V630 PC BOARD ASSY, COMP-IPDU, MCC-1660 2 2 2

718 43T6V631 PC BOARD ASSY, NFC, MCC-1667 1 1 1

719 43T50345 THERMISTOR, PTC 2 2 2

720 43T96307 BUSHING 6 6 6

721 43T96306 COLLAR 6 6 6

722 43T55366 FILTER, LINE 2 2 2

723 43T60456 LEAD ASSY, COMPRESSOR 2 2 2


Q'ty/Set MMY-

Documents

SERVICE MANUAL - Toshiba Air Conditioning