38CKC018–06050 Hertz

Wiring Diagrams

Fig. 1—38CKC018, 024, 036230v, 1 Phase, 50 Hertz

A96164

FACTORY POWER WIRING

FACTORY CONTROL WIRING

FIELD CONTROL WIRING

FIELD POWER WIRING

COMPONENT CONNECTION

FIELD SPLICE

JUNCTION

CONT CONTACTOR

CAP CAPACITOR (DUAL RUN)

*CH CRANKCASE HEATER

COMP COMPRESSOR 320668-101 REV. C

*CH

RED or BLK

CONTBLK

YELYEL

COMP

BLK

BLU CAP

YEL

BLUBLU

YEL*ST

BRN

*SR

*SCOFM

BRN

BRNBLK

BLK

230 1ØPOWERSUPPLY

GNDEQUIP

+t

A1

A2 11 21

13 23

H

C

F

YEL

VIOBLU

(NOTE #14)

(NOTE #9)

(NOTE #8)

YEL

*LPS

YEL

*CTD

*DTS*HPS

INDOOR BLOWER MOTOR

EXTERNALPOWERSUPPLY

24 V

(NOTE #3)

INDOOR THERMOSTAT(NOTE #5)

RGY

BRN

BLKBLU BLKBLU

*LLS

BLUBLU

BLKBLK

LOGICT1 T3

T2

1 2

5

CONT

A1

11 21

*CH

EQUIPGND

*SR

*SC

H

COMP

*ST

C

F

CAP

OFM

CONT

23 13

A2

5 2

1

S

CR

*LPS

*CTD

*DTS*HPS

*LLS

IFR

THERMOSTATINDOOR

Y

G

RCR

EXTERNAL POWER SUPPLY 24 V

CR

(NOTE #14)

+t

LOGICT1 T3

T2

CONT

IFR

1. Symbols are electrical representation only.2. Compressor and fan motor furnished with inherent thermal protection.3. To be wired in accordance with National Electric N.E.C. and local codes.4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS.5. Use copper conductors only. Use conductors suitable for at least 75°C (167°F).6. Connection for typical cooling only thermostat. For other arrangements, see installation instructions.7. If indoor section has a transformer with a grounded secondary, connect the grounded side to the BRN lead.8. When start relay and start capacitor are installed, start thermistor is not used.9. CH not used on all units.10. If any of the original wire, as supplied must be replaced, use the same or equivalent wire.11. Check all electrical connections inside control box for tightness.12. Do not attempt to operate unit until service valves have been opened.13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize between

high and low side before starting.14. Wire not present if HPS, LPS, DTS or CTD are used.

-LEGEND- -NOTES-

1. Compressor damage may occur if system is overcharged.2. This unit is factory charged with R-22 in accordance with the amount shown on the rating plate. The

charge is adequate for most systems using matched coils and tubing not over 15 feet long. The bestperformance will be achieved when the unit operates with a suction gas superheat at the compressorinlet of 5 °F at normal rating conditions of the air conditioning and refrigeration institute (ARI). Thischart may be used to approximate the charge if ARI rating conditions cannot be obtained. ARI ratingconditions are equivalent to DOE test "A" conditions. See product data literature for required indoor airflow rates and for use of line lengths over 15 Ft.

3. Carefully relieve refrigerant pressure within this unit before final disposal.

CAUTION

CONNECTION DIAGRAM SCHEMATIC DIAGRAM (LADDER FORM)

SCR

RED or BLK

*CTD COMPRESSOR TIME DELAY

*DTS DISCHARGE TEMP. SWITCH

*HPS HIGH PRESSURE SWITCH

IFR INDOOR FAN RELAY

*LLS LIQ. LINE SOLENOID VALVE

*LPS LOW PRESSURE SWITCH

OFM OUTDOOR FAN MOTOR

*SC START CAPACITOR

*SR START RELAY

*ST START THERMISTOR

* MAY BE FACTORY OR FIELD INSTALLED.

Visit www.carrier.com

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab 3a 2a

PC 101 Catalog No. 003-844 Printed in U.S.A. Form 38CKC-C3W Pg 1 5-99 Replaces: 38CKC-C2W

Fig. 2—38CKC036, 048, 060400v, 3 Phase, 50 Hertz

A99095

NOTES:

-LEGEND-

1. SYMBOLS ARE ELECTRICAL REPRESENTATIONONLY.

2. COMPRESSOR AND FAN MOTOR FURNISHED WITHINHERENT THERMAL PROTECTION.

3. TO BE WIRED IN ACCORDANCE WITH NATIONALELECTRIC N.E.C. AND LOCAL CODES.

4. N.E.C. CLASS 2, 24 V CIRCUIT, MIN. 40 VA REQUIRED,60 VA ON UNITS INSTALLED WITH LLS.

5. USE COPPER CONDUCTORS ONLY. USECONDUCTORS SUITABLE FOR AT LEAST 75°C (167°F).

6. TYPICAL COOLING ONLY THERMOSTAT, FOR OTHERARRANGEMENTS SEE INSTALLATION INSTRUCTIONS.

7. IF INDOOR SECTION HAS A TRANSFORMER WITH AGROUNDED SECONDARY, CONNECT THEGROUNDED SIDE TO THE BRN LEAD.

8. IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED MUSTBE REPLACED, USE THE SAME OR EQUIVALENTWIRE.

9. CHECK ALL ELECTRICAL CONNECTIONS INSIDECONTROL BOX FOR TIGHTNESS.

10. DO NOT ATTEMPT TO OPERATE UNIT UNTIL SERVICEVALVES HAVE BEEN OPENED.

11. DO NOT RAPID CYCLE COMPRESSOR. COMPRESSORMUST BE OFF 3 MINUTES TO ALLOW PRESSURES TOEQUALIZE BETWEEN HIGH AND LOW SIDE BEFORESTARTING.

12. IT IS IMPERATIVE TO CONNECT 3Ø FIELD POWER TOUNIT WITH CORRECT PHASING. WRONG PHASINGWILL CAUSE REVERSE ROTATION OF SCROLLCOMPRESSOR WHICH WILL RESULT IN REDUCEDCURRENT DRAW, ELEVATED NOISE LEVEL ANDIMPROPER OPERATION. IF ROTATION IS REVERSED,SIMPLY INTERCHANGE ANY TWO OF THE THREEPOWER CONNECTIONS ON FIELD SIDE.

1. Compressor damage may occur if system is over charged.2. This unit is factory charged with R-22 in accordance with the amount shown on the rating plate. The charge is adequate for

most systems using matched coils and tubing not over 15 feet long. The best performance will be achieved when the unitoperates with a suction gas superheat at the compressor inlet of 5°F. at normal rating conditions of the Air Conditioning andRefrigeration Institute (ARI). This chart may be to approximate the charge if ARI rating conditions cannot be obtained. ARIrating conditions are equivalent to DOE test "A" conditions. See product data literature for required indoor air flowrates and for use of line lengths over 15 ft.

3. Relieve pressure and recover all refrigerant before system repair or final unit disposal. Use all service ports and open alflow-control devices, including solenoid valves.

CAUTION

325512-101 REV. A

SCHEMATIC DIAGRAM (LADDER FORM)

CONNECTIONDIAGRAM

CONT

OFMBRN

BLK

400 3ØPOWERSUPPLY

GNDEQUIP

A1

A2

12 22

13 23

VIO

*LPS

YEL

CTD

*HPS

INDOOR BLOWER MOTOR

EXTERNALPOWERSUPPLY

24 V

(NOTES #3 & #6)

INDOOR THERMOSTAT(NOTE #5)

RGY

BRN

BLU YELBLU

*LLS

BLKBLK

LOGICT1 T3

T2

CONT

A1

11 21

*CH

EQUIPGND

OFM CONT

23 13

A2

*LPS

CTD

*HPS

*LLS

IFR

THERMOSTATINDOOR

Y

G

RCR

EXTERNAL POWER SUPPLY 24 V

CR

LOGICT1 T3

T2

ALERT !SEE NOTE #12

11 21A3

T2T1

T3

BLK

YELYEL

BLU

BLK

YEL

CAP

COMP

RED or BLK

RED or BLK*CH

BLU

IFR

COMP

CAP

22 12A3

FACTORY POWER WIRING

FACTORY CONTROL WIRING

FIELD CONTROL WIRING

FIELD POWER WIRING

COMPONENT CONNECTION

FIELD SPLICE

JUNCTION

CONT CONTACTOR

CAP CAPACITOR (DUAL RUN)

*CH CRANKCASE HEATER

COMP COMPRESSOR

*CTD COMPRESSOR TIME DELAY

IDF INDOOR FAN

*HPS HIGH PRESSURE SWITCH

IFR INDOOR FAN RELAY

*LLS LIQ. LINE SOLENOID VALVE

*LPS LOW PRESSURE SWITCH

OFM OUTDOOR FAN MOTOR

* MAY BE FACTORY OR FIELD INSTALLED.

CONT

CONT

BRN

T2T1

T3

!

Copyright 1999 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 38ckcc3w

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab 3a 2a

PC 101 Catalog No. 003-844 Printed in U.S.A. Form 38CKC-C3W Pg 2 5-99 Replaces: 38CKC-C2W