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Multi Air Conditioner SVC MANUAL(Exploded View) MODEL : A2UW146FA3 FM15AH [UL3]

CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

1. Specification A2UW146FA3 FM15AH [UL3]

Outdoor Unit Nominal Capacity (Min~Rating~Max)

Cooling Heating

Nominal Input (Min~Rating~Max) Testing Combination Running Current(Rating)

Cooling Heating Cooling Heating Cooling/Heating

Starting Current Power Supply Power Supply Cable(Outdoor) Power and Transmission Cable(Outdoor to Indoor or Outdoor to BD) Power and Transmission Cable(BD to Indoor) Dimensions WxHxD Net Weight Max. Number of Connectable Indoor Units Compressor (#1) Type Qty x Model Motor type Oil charge volume Oil Type Compressor (#2) Type Qty x Model Motor type Oil charge volume Oil type Compressor (#3) Type Qty x Model Motor type Oil charge volume Oil type Refrigerant Cycle A Charge (at 7.5m) Cycle B Charge (at 7.5m) Type Control Additional Refrigerant Charge Heat Exchanger (Rows x Column x FPI) x No. Defrosting Method Fan Capacitor Drive Discharge Direction(Side/Top) Air Flow Rate x No. of Fan Sound Level(H/L) Sound Pressure Piping Connections Liquid(Cycle A) Gas(Cycle A) Liquid(Cycle B) Gas(Cycle B) High Pressure Gas Max. Interunit Total Piping Piping Length Main Piping Total Branch Piping Each Branch Piping Max. Elevation Outdoor Unit~Indoor Unit Difference Indoor Unit~Indoor Unit

kW Btu/h kW Btu/h kW kW A A A Ø / V / Hz No. x mm2 No. x mm2 No. x mm2 mm(inch) kg(lbs)

cc

cc

cc g(oz) g(oz) g/m(oz/ft) µF/Vac CMM(cfm) dB(A)+3 mm(inch) mm(inch) mm(inch) mm(inch) mm(inch) m m m m m m

Note : 1. Capacities are based on the following conditions: Cooling: - Indoor Temperature 27°C(80.6°F) DB/19°C(66.2°F) WB - Outdoor Temperature 35°C(95°F) DB/24°C(75.2°F) WB Heating: - Indoor Temperature 20°C(68°F) DB/15°C(59°F) WB - Outdoor Temperature 7°C(44.6°F) DB/6°C(42.8°F) WB Piping Length - Interconnecting Piping Length 7.5m - Level Difference of Zero 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement.

Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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1.35~4.10~4.69 4,600~14,000~16,000 1.41~4.70~5.27 4,800~16,000~18,000 0.38~1.25~1.50 0.45~1.25~1.50 AMNH096LRL0+AMNH126LRL0 [MS10AH NR0+MS12AH NR0] 1.6~5.4~6.3 2.0~5.4~5.6 8/8 1/220~240/50 3 x 2.5 4 x0.75(Including Earth) 770x540x245 (30.3x21.3x10) 37(81.6) 2 Rotary 1 x 5RS102XAA21 BLDC 320 FV50S 950(33.5) R410A EEV 20 (2R x 24C x 18) x 1 Reversing Cycle 2.0/400 Direct Drive Side 35(1,236) x1 51 6.35(1/4) 9.52(3/8) 30 20 15 7.5

Conversion Formula kW = Btu/h × 0.0002931 cfm = CMM × 35.3

LGE Internal Use Only

2. List of Functions Category Reliability

Convenience CAC network function Special function kit Others

O : Applied

A2UW146FA3 FM15AH [UL3] O X X X O O O O O O O PQNUD1S00 PMNFP14A0 O -

Function Defrost / Deicing High pressure switch Low pressure switch Phase protection Restart delay (3-minutes) Self diagnosis Soft start Test function Auto operation(Artificial intelligence) Auto restart operation Network soluation(LGAP) PDI(Power Distribution Indicator) PI485 Low ambient operation Thermistor

X : Not applied

- : No relation

Option : Model name & price are different according to options, and assembled in factory with main unit. Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package

Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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LGE Internal Use Only

3. Piping Diagrams INDOOR UNIT

OUTDOOR UNIT Gas Side 3-way Valve

Reversing Valve Th4 Th3

Heat Exchanger

Th1 Compressor

Heat Exchanger

EEV Heat Exchanger

Th2 Liquid Side 2-way Valve

Distributor

INDOOR UNIT

LOC.

Description

PCB Connector

Th1

Thermistor for outdoor air temperature

CN_TH1

Th2

Thermistor for condensing temperature

CN_TH1

Th3

Thermistor for discharge pipe temperature

CN_TH2

Th4

Thermistor for suction pipe temperature

CN_TH2

Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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4. Wiring Diagrams

CN _ COIL2

CN _ COIL1

CN _ FAN

CN _ 4WAY

CN _ TH1 CN _ TH2 CN _ TH3 CN _ JIG_PC CN _ WRITER

CN _ LEV1

CN _ LEV2

Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

CN _ CENTRAL

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CN _ COM

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5. Exploded View

349480

437212 437211

554031

549610 435301

435511

546810 552113 559010

567480D AIR/PIPE

552112 268711 261704

W6640

W0CZZ 567480E SUC/DIS

649950

561410

554160

552116 552200

447910

661400A

661400B 552203A 552203B 430410

55211G

Note) * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.Lgservice.com,) Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

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LGE Internal Use Only

P/NO : MFL40704702

NOVEMBER, 2007