LG Electronics LS240HP(AS-H2435DM0), LS090HP(AS-H091E1H0), LS180CP(AS-C183DM0) Table of Contents

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Air Conditioner Service Manual

 

TABLE OF CONTENTS

 

Safety Precautions

3

Dimensions

9

Symbols Used in this Manual

9

Indoor Unit

9

Outdoor Unit

11

Installation

14

Selection of the Best Location

17

Piping Length and Elevation

18

How to Fix Installation Plate

19

Drill a Hole in the Wall

19

Drain hose junction

19

Flaring work and connection of piping

20

Flaring work

20

Connection of Piping Indoor

21

Connection of the Pipes-Outdoor

26

Connecting the cable between indoor unit and outdoor unit

27

Connect the Cable

27

Checking the drainage and forming the pipings

29

Checking the Drainage

29

Form the Piping

30

AIR PURGING

31

Air purging

31

Air purging with vacuum pump

31

Test Running

34

Operation

35

Function of Controls

35

Display Function

39

Self-diagnosis Function

39

Remote Control Operations

40

Disassembly

41

Indoor Unit

41

Troubleshooting Guide

44

Refrigeration Cycle Diagram

44

2-way, 3-way Valve

45

Cycle Parts

51

Electronic Parts

52

Schematic Diagram

62

Electric Control Device

62

Wiring Diagram

65

Components Location

67

Product Specifications

72

Exploded View

74

Copyright ©2007 LG Electronics. Inc. All right reserved.

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Only for training and service purposes

LGE Internal Use Only

 

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Contents SVC MANUALExploded View Table of Contents Do not modify or extend the power cord Safety PrecautionsInstallation Be sure not to do Be sure to follow the instructionOperation Oxygen deficiency could occur There is risk of explosion or fireKeep level even when installing the product Low refrigerant levels may cause product failureSolvents, etc OccupantsSalt spray directly On the product. outdoor unitReplace all the batteries in the remote DisuseDo not drink the water drained from the unit Indoor Unit DimensionsSymbols Used in this Manual Model Btu SeriesModel Btu Series Dimension Mminch 109042.9 30011.8 1787.0 Outdoor Unit 9k, 12k18k, 24k Features IntroductionInstallation Tools InstallationInstallation Parts Read carefully, and then follow step by stepAdditional drain pipe Installation MapOperation Indication Lamps Confirm The Refrigerant This Product Contains R-410A RefrigerantIndoor unit Rooftop InstallationsSelect The Best Location Outdoor unitPiping Length And Elevation Evap Moz/ftHow To Mount Installation Plate Drill a Hole In The WallBurrs removal Flaring WorkCut the pipes and the cable Putting nut onIndoor Connecting The PipingIndoor unit installation Wrap the insulation material around the connecting portion Tighten the flare nut with a wrenchConnecting cable Insert the connecting cable into the indoor unitIndoor unit installation Connection Indoor Correct case Incorrect caseConnection Of The Drain Hose Connection Of Piping -OutdoorConnection Of The Cable CapacityInstallation Drain hose should point downward for easy drain flow Checking The DrainageDrain piping Avoid these situationsForming The Piping Air purging With Vacuum Pump Dry nitrogen gas cylinder to this service portAir Purging PreparationEvacuation Finishing the jobCharging Btu/hSettlement of outdoor unit Prepare remote controlTest Running Evaluation of the performanceOperation Cooling Mode OperationHealthy Dehumidification Mode Function of ControlsHeating Mode Operation Defrost ControlJet Cool Mode Operation C/O Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation H/P ModelAuto restart Forced operationTest operation Protection of the evaporator pipe from frostingHeating Model Display FunctionSelf-diagnosis Function Thermistor open/shortRemote Control Operations Disassembly To remove the Grille from the ChassisWhen repair, do not damage the Caution label To remove the EvaporatorTo remove the Motor Cover Cooling Only Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling & Heating ModelsWay, 3-way Valve Way Valve Liquid SideProcedure Pumping DownBalance Refrigerant of the 3-way Valve Vacuum pump Gas Charging After EvacuationAccording to Indoor & Outdoor Temperature Method of using graphMethod of using equation Additional gas chargingCycle Parts Trouble analysisElectronic Parts 9k model Product does not operate at allElectronic Parts 18k model Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive.9k Model Compressor/Outdoor Fan are unable to drive.18k Model When indoor Fan does not operate NectorWhen Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor UnitOutdoor Unit Schematic Diagram Electric Control DeviceOutdoor 9k, 12k Outdoor 18k, 24k Wiring Diagram Models 9k, 12k, 18k, 24kModels 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Main P.W.B Assembly TOP View Bottom View Components LocationOutdoor9k, 12k TOP View Bottom ViewOutdoor18k, 24k 6871A20681 6871A20680Product Specifications Cooling OnlyCooling & Heating LS090HP LS120HP LS180HP LS240HPExploded View Outdoor Unit 9k, 12k C/O Seriess Outdoor Unit 9k, 12k H/P Seriess Outdoor Unit 18kC/O Seriess Outdoor Unit 24kC/O Seriess W0CZZBOutdoor Unit 18k, 24k H/P Seriess No MFL32351801 December