Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics A2UH243FA0(LMU240HE) Display ASSEMBLY 1 Split Type 6871A20680, Schematic Diagram

Models: AMNC093APM0(LMAN090CNS) AMNH123DEA0 (LMN120HE) A2UC243FA0 (LMU240CE) AMNH123APM0(LMAN120HNS) A2UH243FA0(LMU240HE) AMNH093APM0(LMAN090HNS) AMNC123DEA0 (LMN120CE)

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Image 61

Schematic Diagram

2. Display ASSEMBLY

1) Split Type (6871A20680)

2) Art Cool Type (6871A20462)

TOP VIEW

BOTTOM VIEW

Service Manual 61

Page 61

Image 61

LG Electronics A2UH243FA0(LMU240HE) Display ASSEMBLY 1 Split Type 6871A20680, Art Cool Type 6871A20462, Schematic Diagram

Contents

BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUALONLY FOR AUTHORIZED SERVICE PERSONNEL Multi Type Air ConditionerTABLE OF CONTENTS 2 Multi type Air ConditionerMulti type Air Conditioner Service Manual Installation PartsModel Number Nomenclature Service ManualIndoor Unit Outdoor UnitCombination table SymbolsUsedinthisManual4 Multi type Air Conditioner This symbol alerts you to the risk of electric shockInstallation Safety PrecautionsSafety Precautions Be sure not to do Be sure to follow the instructionDo not install, remove, or re Do not modify or extend the power cableinstall the unit by yourself and installing the productDo not place a heater or other appliances near the power cable Do not plug or unplug the power supply plug during operationnect the power supply cable Do not allow water to run into electric partsTurn the main power off when cleaning or maintaining the product When the product is soakednot enter the product 8 Multi type Air ConditionerDo not expose the skin directly to cool air for long periods of time OperationalDont sit in the draft of air flowwhen cleaning or maintaining ly. Clean the filter every twoDo not step on or put anyting on the product. outdoor units Do not drink the water drained from the productDimensions DimensionsIndoorUnit 1. Split Type Indoor12 Multi type Air Conditioner OutdoorUnitDimensions 24kBtu/hProduct Specifications Product SpecificationsIndoor Unit Service Manual14 Multi type Air Conditioner Outdoor Unit - Multiple piping modelsProduct Specifications ModelInstallationParts InstallationInstallationTools InstallationSelect the best location Rooftop InstallationsIndoor unit Outdoor unitMulti Piping Type Piping length and elevationInstallation Service Manual18 Multi type Air Conditioner Fixing Installation PlateStandard TypeInstallation Open panel front Preparing work for Installation Artcool Type OnlyRemove cover pipe and cover side Drain hose junctionSticking the installation guide map and fixing Indoor unit INSTALLATIONDrill a hole in the wall 20 Multi type Air ConditionerFlaringwork Flaring Work and Connection of PipingFlaring Work and Connection of Piping Cut the pipes and the cableCheck Connecting the PipingIndoor For right rear pipingConnecting the piping to the indoor unit and drain hose to drain pipe Service ManualWrap the insulation material around the connecting por- tion Flaring Work and Connection of Piping24 Multi type Air Conditioner For left rear pipingFlaring Work and Connection of Piping Drain pipeWrap the insulation material around the connecting por- tion Service ManualIndoor unit installation Flaring Work and Connection of Piping26 Multi type Air Conditioner Panel AssemblyArt Cool Type onlyPanel Front Connector Flaring Work and Connection of PipingGood case Service ManualBad case Flaring Work and Connection of Piping28 Multi type Air Conditioner REMOTE CONTROL PREPARATIONOPTIONALHOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Flaring Work and Connection of PipingService Manual OutdoorFlaring Work and Connection of Piping Outside diameterConnectthe cabletotheIndoorunit Connecting the Cable between Indoor Unit and Outdoor Unit30 Multi type Air Conditioner Connecting the Cable between Indoor Unit and Outdoor UnitConnecting the Cable between Indoor Unit and Outdoor Unit Connectthe cabletotheOutdoor unitService Manual Every wire must be connected firmly32 Multi type Air Conditioner How to connect wiring to the terminalsConnectionmethod ofthe connectingcableExample Connecting the Cable between Indoor Unit and Outdoor UnitConnecting the Cable between Indoor Unit and Outdoor Unit Connectthecable totheindoorunitService Manual 2. Attach the Grille onto the cabinetCheckingthedrainage Checking the Drainage, Forming the Pipings and Long Pipe SettingTo check the drainage Drain pipingFormingthe piping Checking the Drainage, Forming the Pipings and Long Pipe SettingAir Purging and Evacuation CAUTION Be sure to use a manifold valve for leak testingCheckingmethod Air Purging and EvacuationEvacuation Repeat evacuation procedure for each indoor unitFinishing the job Checking the Drainage, Forming the Pipings and Long Pipe SettingCharging Charging38 Multi type Air Conditioner Max length ofTest Running Test RunningSplit, Art Cool Type Service ManualFunctionofcontrol Operation1. MAIN UNIT FUNCTION OperationFuzzy Operation Defrost ControlHeatingService Manual OperationOff-Timer Operation On-Timer OperationAirflow Speed Selection 42 Multi type Air ConditionerSleep Timer Operation Off-Timer = On-Timer OperationChaos Swing Mode Chaos Natural Wind ModeBuzzer Sounding Operation Forced Operation44 Multi type Air Conditioner OperationSplit Type Indoor Unit FunctionofIndoorUnitService Manual Operation ON/OFF by Remote controller Sensing the Room Temperature46 Multi type Air Conditioner Art Cool Type Indoor UnitOperation ON/OFF by Remote controller Sensing the Room Temperature Time Delay Safety ControlOutdoor Unit FunctionofOutdoor UnitService Manual Operation48 Multi type Air Conditioner RemoteControlOperationThe Remote Controller transmits the signals to the system SETTING BUTTONSDisassembly DisassemblyIndoor Unit Service ManualDisassembly 50 Multi type Air ConditionerWhen repair, do not damage the Caution label 2. To remove the Control BoxDisassembly Service Manual5. To remove the Motor Cover 6. To remove the Cross-Flow Fan52 Multi type Air Conditioner Be sure the power switch is set to “OFF”Disassembly Art Cool Type Indoor UnitService Manual Disassembly3 To remove the Evaporator 4 Before removing the Turbo FanSchematic Diagram Schematic DiagramElectronicControlDevice 1. Indoor UnitSchematic DiagramService Manual56 Multi type Air Conditioner 2. Outdoor UnitSchematic Diagram TMP87CM41FSchematic Diagram Service ManualR102 3. Outdoor Unit Wiring Diagram2. Art Cool Type Indoor Unit 1. Room Type Indoor Unit -S4/SE chassisTOP VIEW ComponentsLocationsBOTTOM VIEW MAIN P.C.B ASM 1 Split Type60 Multi type Air Conditioner 2 Art Cool TypeSchematic Diagram TOP VIEW BOTTOM VIEW2 Art Cool Type 6871A20462 2. Display ASSEMBLY 1 Split Type 6871A20680Schematic Diagram Service Manual62 Multi type Air Conditioner 1 Component sideSchematic Diagram 3. Outdoor UnitSchematic Diagram 2 Solder sideService Manual RefrigerationCycleDiagram Troubleshooting GuideTroubleshooting Guide 1. A2UH243FA0LMU240HEOutdoor Error Indoor ErrorSelf-diagnosisFunction Troubleshooting GuideTrouble analysis CycleTroubleshooting Guide66 Multi type Air Conditioner Troubleshooting GuideTrouble ElectronicPartsTroubleshooting GuideThe Product doesn’t operate at all Troubleshooting Guide68 Multi type Air Conditioner Product doesnt operate with the remote controllerTroubleshooting Guide TroubleTroubleshooting Guide The Compressor/Outdoor Fan are dont operateTrouble Check PointWhen indoor Fan does not operate Trouble 4 When indoor Fan does not operate70 Multi type Air Conditioner Troubleshooting GuideWhen Vertical Louver does not operate Trouble 5 When the louver does not operateTroubleshooting Guide Check Point ErrorCode72 Multi type Air Conditioner Troubleshooting GuideTroubleshooting Guide Service ManualPower input AC 230V.Outdoor, Indoor The connecting wires are misconnectedTroubleshooting Guide 74 Multi type Air ConditionerError Cause of errorTroubleshooting Guide Service ManualCause of error Check Point2-way, 3-way Valve 2-way, 3-way Valve76 Multi type Air Conditioner 2-way Valve Liguid Side1 Pumping down ProcedureService Manual 2-way, 3-way Valve78 Multi type Air Conditioner 2 EvacuationProcedure 7. Mount the valve caps and the service port capsProcedure 3 Gas Charging5. Mount the valve stem nuts and the service port nut 2-way, 3-way ValveExploded View & Replacement Parts List Exploded View & Replacement Parts ListS4, SE chassis 80 Multi type Air ConditionerExploded View & Replacement Parts List Parts List S4, SE chassisService Manual DESCRIPTION82 Multi type Air Conditioner SP3 Chassis Art Cool TypeExploded View & Replacement Parts List Exploded View & Replacement Parts List Parts List SP3 chassisService Manual COVER ASSEMBLY,TOPINDOOR84 Multi type Air Conditioner Outdoor UnitExploded View & Replacement Parts List A2UC243FA0 LMU240CEExploded View & Replacement Parts List Parts List A2UH243FA0LMU240HE, A2UC243FA0 LMU240CEService Manual Location