Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LSU090CE, LSN090CE, LSU120CE, LSU090HE, LSN180CE, LSN120HE 6871A20681, 6871A20680

Models: LSN180HE LSN120HE LSN090CE, LSN120CE, LSN180CE, LSN240CE, LSN090HE, LSN120HE, LSN180HE, LSN240HE, LSU090CE, LSU120CE, LSU180CE, LSU240CE, LSU090HE, LSU120HE, LSU180HE, LSU240HE LSN240CE LSU240HE LSU090CE LSU240CE LSN120CE LSN180CE LSU120HE LSU180HE LSU180CE LSN090CE LSN240HE LSN090HE LSU090HE LSU120CE

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Page 71

Schematic Diagram

DISPLAY ASSEMBLY

– 6871A20681

PCB P/No : 6870A90240F

PLASMA

LED_M

PCB ASSEMBLY P/No : 6871A20681

– 6871A20680

CN-DISP1

88

RECEIVER	SW_TACT		C01A
	SW_TACT

Service Manual 71

Image 71

LG Electronics LSU090CE, LSN090CE, LSU120CE, LSU090HE, LSN180CE, LSN120HE, LSN180HE, LSN120CE, LSN240HE 6871A20681, 6871A20680

Contents

Room Air Conditioner Table of Contents Be sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Do not modify or extend the power cordOperation Moisture may condense and wet or damage furnishings Low refrigerant levels may cause product failure Keep level even when installing the productOn the product. outdoor unit OccupantsSalt spray directly Solvents, etcReplace all the batteries in the remote DisuseDo not drink the water drained from the unit Indoor Unit DimensionsSymbols Used in this Manual Model Btu Series Dimension Mminch 109042.9 30011.8 1787.0 9k, 12k Outdoor UnitDIM 18k, 24kIntroduction FeaturesInstallation Tools InstallationInstallation Parts Bushing-Sleeve Installation MapThis Product Contains R-410A Refrigerant Confirm The RefrigerantOutdoor unit Rooftop InstallationsSelect The Best Location Indoor unitPiping Length And Elevation Drill a Hole In The Wall How To Mount Installation PlatePutting nut on Flaring WorkCut the pipes and the cable Burrs removalIndoor Connecting The PipingIndoor unit installation Tighten the flare nut with a wrench Wrap the insulation material around the connecting portionIndoor unit installation Insert the connecting cable into the indoor unitConnection Indoor Incorrect case Correct caseConnection Of Piping -Outdoor Connection Of The Drain HoseConnection Of The Cable Wiring DiagramRoom Air Conditioner Drain piping Checking The DrainageSeal small openings around pipings with a gum type sealer Forming The PipingLeak test Air PurgingAir purging With Vacuum Pump PreparationFinishing the job EvacuationBtu/h ChargingEvaluation of the performance Prepare remote controlTest Running Settlement of outdoor unitFunction of Controls Cooling Mode OperationHealthy Dehumidification Mode OperationDefrost Control Heating Mode OperationJet Cool Mode Operation H/P Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation C/O ModelProtection of the evaporator pipe from frosting Forced operationTest operation Auto restartHeating Model Display FunctionSelf-diagnosis Function Operation Mode Remote Control OperationsTo remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover Cooling & Heating Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling Only ModelsWay Valve Liquid Side Way, 3-way ValvePumping Down ProcedureBalance Refrigerant of the 3-way Valve Vacuum pump After Evacuation Gas ChargingAdditional gas charging Method of using graphMethod of using equation According to Indoor & Outdoor TemperatureTrouble analysis Cycle PartsProduct does not operate at all Electronic Parts 9k modelElectronic 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 Nector When indoor Fan does not operateWhen Vertical Louver does not operate When a comunication error occurs Indoor Unit Phenomena in case of connecting errorOutdoor Unit Electric Control Device Schematic DiagramOutdoor 9k, 12k Outdoor 18k, 24k Wiring Diagram Models 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Components Location Outdoor9k, 12k Outdoor18k, 24k 6871A20680 6871A20681Cooling Only Product SpecificationsLS090HE LS120HE LS180HE LS240HE Cooling & HeatingExploded View Outdoor Unit 9k, 12k Btu/h Seriess 435512 W0CZZ-2 Outdoor Unit 18kH/P, 24k SeriessParts List Indoor Replacement Parts ListLSN180CE LSU120HE Parts List OutdoorReplacement Parts List LSU240HE No A20462V