MDS Installation

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MDS InstallationMDS Installation

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Contents

IntroductionIntroduction

Outdoor Unit Installation Outdoor Unit Installation

Indoor Unit InstallationIndoor Unit Installation

Refrigerant Pipe WorkRefrigerant Pipe Work

Gas ChargeGas Charge

WiringWiring

SummarySummary

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Introduction

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Bad installation – System will not operate as per design

Waste of Money Waste of Time Bad Image

3 Major Categories Unit Installation Piping Installation Wiring Installation

INSTALLATIONINSTALLATION

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Outdoor Unit Installation

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Outdoor Unit Installation

Sufficient area around the unit. No barrier for supply air and discharge air.

Avoid discharge air return to the unit (Hot Air short-circuiting)

Strong foundation for the unit

Outdoor Unit InstallationOutdoor Unit Installation

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Handling Outdoor Unit

Correct


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Handling Outdoor Unit

Wrong


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Correct Wrong


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Wall / Barrier higher than unit

Side View

Wall / Barrier lower than unit


Outdoor Unit Spacing (Single Unit)

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Top View (Barrier higher than unit)



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Top View (Barrier lower than unit)



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Outdoor Unit Spacing (More than 1 unit)

Top View

(Wall / Barrier restriction same as 1 outdoor unit)


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Top View



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Top View




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Outdoor Unit Foundation

Floor location strength

- Able to withstand the unit weight and vibration

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Layout for drainage, piping & cables

- Different level, avoid blocking

Gas and liquid piping connection Balance piping connection

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Screw bolt required to further tighten the unit

- Avoid the unit from falling due to earthquake

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Indoor Unit Installation

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Drainage Pipe Work

Adjust the downward gradient

Gradient of 1:100 or more

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Drainage Pipe Work

Group drain pipe

≥100mm

Vent opening Clamp of drain pipe

Gradient ≥ 1/100

Converged drain pipe

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EXV Box Installation

MUST install vertically upward

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Unit and EXV Selection - 2006

Indoor Mode R22 R410A R22 R410AWMD 09G 1/4 1/4WMD 10G 1/4 1/4WMD 15G 1/4 1/4WMD 20G 1/4 1/4WMD 25G 3/8 1/4 MEX-20-3SAP-B MEX-20-2SAP-B

CKD 10C 1/4 1/4CKD 15C 1/4 1/4CKD 20C 1/4 1/4

CKD 20A 1/4 1/4CKD 25A 3/8 1/4 MEX-20-3SAP-A MEX-20-2SAP-ACKD 30A 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACKD 40A 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACKD 50A 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-A

MEX-20-2SAP-A

MEX-16-2SAP-AMEX-16-2SAP-A

MEX-20-2SAP-B

MEX-20-2SAP-A

Liquid Pipe Diamter (Inch) MEX Model

MEX-16-2SAP-BMEX-16-2SAP-BMEX-16-2SAP-B

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Unit and EXV Selection - 2006

Indoor Mode R22 R410A R22 R410ACCD 10C 1/4 1/4CCD 15C 1/4 1/4CCD 20C 1/4 1/4CCD 25C 3/8 1/4 MEX-20-3SAP-A MEX-20-2SAP-ACCD 28C - 3/8 - MEX-20-3SAP-ACCD 30C 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACCD 38C - 3/8 - MEX-20-3SAP-ACCD 40C 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACCD 50C 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACCD 60C 1/2 3/8 MEX-25-3SAP-A MEX-25-3SAP-A

CED 15E - 1/4 - MEX-16-2SAP-ACED 20E 1/4 1/4 MEX-20-2SAP-A MEX-16-2SAP-ACED 25E 3/8 1/4 MEX-20-3SAP-A MEX-16-2SAP-ACED 28E 3/8 3/8 MEX-20-3SAP-A MEX-20-3SAP-A

CED 40D 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACED 50D 3/8 3/8 MEX-25-3SAP-A MEX-20-3SAP-ACED 62C 1/2 3/8 MEX-25-3SAP-A MEX-25-3SAP-A

MEX-20-2SAP-A


MEX-16-2SAP-AMEX-16-2SAP-A

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Indoor Mode R22 R410A R22 R410AWMD 09G 1/4 1/4WMD 10G 1/4 1/4WMD 15G 1/4 1/4WMD 20G 1/4 1/4 MEX-18-2SAP-D MEX-18-2SAP-DWMD 25G 3/8 1/4 MEX-18-3SAP-D MEX-22-2SAP-D

CKD 10C 1/4 1/4CKD 15C 1/4 1/4CKD 20C 1/4 1/4 MEX-18-2SAP-C MEX-18-2SAP-C

CKD 20A 1/4 1/4 MEX-18-2SAP-C MEX-22-2SAP-CCKD 25A 3/8 1/4 MEX-18-3SAP-C MEX-22-2SAP-CCKD 30A 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCKD 40A 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCKD 50A 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-C

MEX-15-2SAP-CMEX-15-2SAP-C

MEX-15-2SAP-DMEX-15-2SAP-DMEX-15-2SAP-D


Unit and EXV Selection - New

Marketing Bulletin: MBM001-0801

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Indoor Mode R22 R410A R22 R410ACCD 10C 1/4 1/4CCD 15C 1/4 1/4CCD 20C 1/4 1/4 MEX-18-2SAP-C MEX-18-2SAP-CCCD 25C 3/8 1/4 MEX-18-3SAP-C MEX-22-2SAP-CCCD 28C - 3/8 - MEX-22-3SAP-CCCD 30C 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCCD 38C - 3/8 - MEX-22-3SAP-CCCD 40C 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCCD 50C 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCCD 60C 1/2 3/8 MEX-24-4SAP-C MEX-24-3SAP-C

CED 15E - 1/4 - MEX-15-2SAP-CCED 20E 1/4 1/4 MEX-18-2SAP-C MEX-18-2SAP-CCED 25E 3/8 1/4 MEX-18-3SAP-C MEX-22-2SAP-CCED 28E 3/8 3/8 MEX-18-3SAP-C MEX-22-3SAP-C

CED 40D 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCED 50D 3/8 3/8 MEX-24-3SAP-C MEX-22-3SAP-CCED 62C 1/2 3/8 MEX-24-4SAP-C MEX-24-3SAP-C

MEX Model

MEX-15-2SAP-CMEX-15-2SAP-C

Liquid Pipe Diamter (Inch)

Unit and EXV Selection - New

Marketing Bulletin: MBM001-0801

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3 types of mounting methods

1 2

3

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Refrigeration Pipe Work

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Piping Installation

Ensure piping is dry, clean and no air leakage

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Piping Installation

Nitrogen gas replacement

Nitrogen gas pressure: about 0.02 MPa (0.2 kg/cm2, 2.8 psi)

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Piping Installation

Covering of refrigerant pipes

- Prevent water, dirt or dust from getting into the pipes

Pinching

Taping Method

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Piping Installation


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Piping Installation


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Piping Installation

Connection

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Piping Installation

Refnet & distributors joints to be install horizontally

In ±15°

In ±15°

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Piping Installation

Refnet & distributors joints to be install horizontally

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Connection Type of Refnet Joint/Distributors

Refnet Joint


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Connection Type of Refnet Joint/Distributor

Distributor


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Refnet Joint Distributor


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Refnet Joint Distributor


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Thermal Insulation Work

Insulation material must be able to withstand the pipe heat

- Heat pump unit – heat resistance polyethylene foamed (> 120°C)

- Cooling only unit – polyethylene (> 100°C)

Insulation method

Thickness of insulation

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Both liquid and gas pipe MUST be insulated

Gas pipe

Liquid pipe

Insulation

Control wire

Finishing tape

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Wrong Method Correct Method

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Insulation thickness

Notes:• Hot and wet environment, increase then thickness of the insulation

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Connection pipes should be properly fix

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Gas Charge

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Additional Refrigerant Charge

The amount of additional charge must be determined by the equation with the total length of liquid pipe.

After calculation, the amount of additional charge should be recorded to the reverse side of the of the outdoor unit control box cover.

Put in liquid state refrigerant from the liquid port to connect the cylinder by using weight scale.

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Pipe Diamater (mm) 6.35 9.52 12.70 15.88 19.05

Additional Charge (g/m) 50 80 120 180 290

Additional Refrigerant Charge (R22)

The equation of additional refrigerant charge

Additional Charge Amount= (Ø15.88 liquid pipe length x 180g/m) + (Ø12.7 liquid pipe length x 120g/m) +

(Ø9.52 liquid pipe length x 80g/m) + (Ø6.35 liquid pipe length x 50g/m)

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Pipe Diamater (mm) 6.35 9.52 12.70 15.88 19.05

Additional Charge (g/m) 45 70 120 180 260

Additional Refrigerant Charge (R410A)

The equation of additional refrigerant charge

Additional Charge Amount= (Ø15.88 liquid pipe length x 180g/m) + (Ø12.7 liquid pipe length x 120g/m) +

(Ø9.52 liquid pipe length x 80g/m) + (Ø6.35 liquid pipe length x 50g/m)

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Wiring

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MC301 controllerMC301 controller

Credit Card controllerCredit Card controller

ID PCBID PCB

Connection between ID PCB & MC301

WiringWiringStandard length 10 meterStandard length 10 meter

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RECEIVER

WiringWiring

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WiringWiring

Wiring Design

All wires and accessories must be tested beforehand

All electric work must be done by licensed electrician

Wiring connection should be referred to the installation manual

Breaker and fuse should be set on each outdoor unit

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WiringWiringCommunication Wires

Twisted pair wired with shielding (20AWG)

- Shield wire to be earth on 1 end of the network

- Connected serially to the adjacent unit (Daisy Chain Connection)

- Same polarity between units (A-A, B-B)

Wire Limitation (Units in meter)

• PC to Gateway – 2m (RS232)

• 1st Outdoor to Last Outdoor < 1000m (RS485)

• Outdoor to Last Indoor < 1000m (RS485)

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WiringWiring

Communication Wires

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WiringWiring

Communication Wires

System wiring

Jumper JP7 need to be shorted for the final indoor unit

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WiringWiring

Communication Wires

System wiring

Ain = Terminal 30

Bin = Terminal 31APC = Terminal 32

BPC = Terminal 33

Page 61 ID PCB

OD PCB

MDS080~240

Ain Bin Apc Bpc

B

A

WiringWiring

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WiringWiring

Communication Wires

System wiring

Jumper JP7 need to be shorted for the final indoor unit

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Indoor Units

MDS260/280/300/320

MDS130/150/160BRSMDS120/150/160BRM

+Ain Bin Apc Bpc Ain Bin Apc Bpc

WiringWiring

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WiringWiring

Central Controller (For R410A MDS Indoor only)

PCB: MC200-C & MC201-C

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WiringWiring

Central Wired Controller

• Group control for 32 unit.

• Group Control setting: On/Off, Temperature, Operating mode, Fan speed, sleep mode and timer On/Off

• Single unit operation setting: On/Off, Temperature, Operating Mode, Fan speed and sleep mode.

• Timer setting: timer on/off all units.

• Display Circularly: display each unit temperature, mode, fan speed, running and fault code one by one.

• Real time clock: Required battery to maintain the time if no power supply.

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WiringWiring


220-240V /

1P / 50Hz

MC200-C / MC201-C

MC200-C / MC201-C

MC200-C / MC201-C

MC200-C – M5WMD20/25G

MC201-C - Others

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WiringWiring


Dimension

Installation

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Gateway

Computer

Indoor unitsOutdoor units

RS485

RS232

1.1. Display ID status & error historyDisplay ID status & error history2.2. Monitor & Control Monitor & Control 3.3. Daily, Weekly & Holiday timer settingDaily, Weekly & Holiday timer setting

1.1. Display ID status & error historyDisplay ID status & error history2.2. Monitor & Control Monitor & Control 3.3. Daily, Weekly & Holiday timer settingDaily, Weekly & Holiday timer setting

Ain Bin Apc Bpc

WiringWiring

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WiringWiring

Communication Wires

Necessary distance from communication wires to the power supply cable

Parallel distance (d)

≤ 10A 300mm

50A 500mm

100A 1,000mm

≥ 100A 1,500mm

Current of power supply

≥ 100V

Problem may happen due the electromagnetic interference if the communication line is too close with the power cable.

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Summary

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SummarySummary

3 basic rules of refrigerant pipe work :

- Dry, Clean and air tight

Both liquid and gas pipe should be insulate separately

The communication wires must be in the same polarity

DO NOT wrap the power cable and communication wire together

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The End The End

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MDS Installation