LG Multi V ARNU283M3A4 Svc Manual
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LG Multi V ARNU283M3A4 Svc Manual

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See also: Engineering Manual
Multi V Air Conditioner
SVC MANUAL(Exploded View)
MODEL :
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication,
modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained
the prior written consent of the LG Electronics entity from which you received this Service Manual. The material
covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
ARNU073M2A4
ARNU093M2A4
ARNU123M2A4
ARNU153M2A4
ARNU183M2A4
ARNU243M2A4
ARNU283M2A4
ARNU363M2A4
ARNU423M2A4
ARNU283M3A4
ARNU363M3A4
ARNU423M3A4
ARNU483M3A4
ARNU543M3A4
CONFIDENTIAL

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Summary of Contents for LG Multi V ARNU283M3A4

  • Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.

  • Page 2: Specification

    5. EEV : Electronic Expansion Valve 6. Noise Level is Standard Mode (for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA) - 2 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 3 5. EEV : Electronic Expansion Valve 6. Noise Level is Standard Mode (for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA) - 3 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 4 5. EEV : Electronic Expansion Valve 6. Noise Level is Standard Mode (for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA) - 4 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 5 5. EEV : Electronic Expansion Valve 6. Noise Level is Standard Mode (for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA) - 5 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 6 5. EEV : Electronic Expansion Valve 6. Noise Level is Standard Mode (for actual High Mode(factory set) condition, Noise Level may exceed the standard level by 1.5dBA) - 6 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 7: List Of Functions

    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. - 7 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 8: Piping Diagrams

    PCB Connector (Color) Thermistor for room air temperature CN-ROOM (Yellow) Thermistor for pipe in temperature CN-PIPE_IN (White) Thermistor for pipe out temperature CN-PIPE_OUT (Red) - 8 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 9: Wiring Diagrams

    CN_LEAK(VI) CN_HUMID(OR) CN_HUMID(OR) CN_PIPE_OUT(RD) CN_PIPE_OUT(RD) CN_DAMPER(GN) CN_DAMPER(GN) CN_PIPE_IN(WH) CN_PIPE_IN(WH) CN_ZONE(WH) CN_ZONE(WH) CN_WF(BL) CN_WF(BL) CN_ROOM(YL) CN_MOTOR1(WH) CN_ROOM(YL) CN_MOTOR1(WH) CN_1(BL) CN_1(BL) CN_D_PUMP(WH) CN_D_PUMP(WH) CN_POWER(WH) CN_POWER(WH) - 9 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

  • Page 10: Dip Switch Setting

    - The serial number of Multi V super IV (outdoor units) is after October 2013. DIP switch 7 segment Outdoor Unit PCB Outdoor Unit DIP Switch - 10 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 11 W4810D 354210 237203 354212 137214 137213B 55211G 237204B W4810B 352118 739207 237204A 739209 159830 73920A 158580 268711D 137213A 261704 158591 349600B W6640A 266010 349610A W6640C 135501 268711C W1JK 336600B 268711A 359012B 263230A 147901 249951 263230C 346810 263230B 237200 349610B 349600A 336600A 359012A 437213...
  • Page 12 354210 137214 354212 237204B W4810D 55211G 237203 739209 W4810B 137213B 352118 237204A 73920A 739207 159830 158580 137213A 268711A W6640A 266010 261704 W6640C 349600B 158591 268711D 268711C 349610A 336600B 135501 263230C W6640A W1JK 237200 263230B 349610B W6640C 147901 359012B 263230A W4030B 249951 346810 437213...

  • Page 13: Self-Diagnosis Function

    Communication error in outdoor communication Outdoor communication PCB did not receive communication sig- PCB ↔ outdoor unit nal from outdoor unit for over 3 minutes continuously - 13 - Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
  • Page 14 P/NO : MFL69041302 Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.

This manual is also suitable for:

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