LG Multi V III Solo ARUN LM3 Series Service Manual

LG Multi V III Solo ARUN LM3 Series Service Manual

Outdoor unit
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Internal Use Only
http://biz.lgservice.com
Solo - Heat Pump
Outdoor Unit
R410A
SERVICE MANUAL
MODEL : ARUN***LM3 Series
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.

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Summary of Contents for LG Multi V III Solo ARUN LM3 Series

  • Page 1: Service Manual

    Internal Use Only http://biz.lgservice.com Solo - Heat Pump Outdoor Unit R410A SERVICE MANUAL (Exploded View) MODEL : ARUN***LM3 Series CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
  • Page 2: Table Of Contents

    1. Specifications ................3 2. Function ..................4 3. Dimensions ...................5 4. Piping Diagrams ................6 5. Wiring Diagrams .................17 6. Exploded View ................22 - 2 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3: Specifications

    Btu/h = kW x 3412 2. Capacities are net capacities cfm = m /min x 35.3 3. EEV : Electronic Expansion Valve - 3 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4: Function

    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 separated package. - 4 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5: Dimensions

    Dimensions Dimensions - 5 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 Dimensions - 6 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7: Piping Diagrams

    Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 7 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 8 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 9 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10: Cooling Operation

    Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 10 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 11 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Expansion Valve Press ure Sensor Temperature Sensor Check valve Soleno id valve Remarks Strainer SVC Valve Press ure Switch - 12 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13: Wiring Diagrams

    Wiring Diagrams 5. Wiring Diagrams 5.1 Heat Pump Model 5.1.1 8HP(UX2 1Comp.) - 13 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 Wiring Diagrams 5.1.2 10, 12HP(UX2 2Comp.) - 14 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15: Heat Pump

    (JIG POWER TERMINAL : AC 220V) CN30 P-SENSOR(H) (HIGH PRESSURE SENSOR) n Noise Filter CN_MAIN CN_INVERTER 220V Power output Terminal 220V Power Output Terminal - 15 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16: Inverter Pcb

    CN01 COMP CON U.V.W Output Terminal CN08 AC220 INPUT 220V Power Input Terminal CN04 15V OUTPUT DC 15V Output Terminal - 16 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17: Wiring Diagrams

    CN_MICOM WRITING (INV Onboarding Terminal) SW01B (Reset button) CN FAN CN DC LINK (Fan Motor Power Terminal) (700V DC LINK) - 17 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18: Exploded View

    (Sound proof for Inv. Comp) Part L/No. Remark Inv Comp. Heater 553000A Housing Color : Blue Heater Spring W48602 - 18 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 Suction Pipe + Inv. Discharge + HEX Housing Color : Purple Temp. Sensor 3 263230E Air + Inv. IPM Housing Color : Green - 19 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 Const. Speed Comp. Heater 553000B Housing Color : Yellow Inv Comp. Heater Spring W48601 Const. Speed Comp. Heater Spring W48602 - 20 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Suction Pipe + Inv. Discharge + HEX Housing Color : Purple Temp. Sensor 3 263230C Const. Speed Discharge Housing Color : Green - 21 - Copyright ©2011 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 September, 2011 P/NO : MFL54555530...

This manual is also suitable for:

Arun80lm3Arun100lm3Arun120lm3

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