LG Electronics LSU240CE, LSN090CE, LSU120CE, LSU090HE, TRUE Models 18kC/O Models 18kH/P, 24kC/O, H/P

Page 67

Schematic Diagram

Models: 18k(C/O)

Models: 18k(H/P), 24k(C/O, H/P)

Service Manual 67

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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 Solvents, etcOr more often if necessary Do not drink the water drained from the unit DisuseReplace all the batteries in the remote Symbols Used in this Manual DimensionsIndoor Unit Model Btu Series Dimension Mminch 109042.9 30011.8 1787.0 9k, 12k Outdoor UnitDIM 18k, 24kIntroduction FeaturesInstallation Parts InstallationInstallation Tools Bushing-Sleeve Installation MapThis Product Contains R-410A Refrigerant Confirm The RefrigerantOutdoor unit Rooftop InstallationsSelect The Best Location Indoor unitEvap Moz/ft Piping Length And ElevationDrill a Hole In The Wall How To Mount Installation PlatePutting nut on Flaring WorkCut the pipes and the cable Burrs removalIndoor unit installation Connecting The PipingIndoor 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 EvacuationCharging Evaluation 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 restartSelf-diagnosis Function Display FunctionHeating Model 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

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