Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LSU120CE, LSN090CE, LSU090HE, LSU090CE, LSN180CE service manual Room Air Conditioner

Models: LSN120HE LSN240CE LSU090CE LSU240CE LSN120CE LSN180CE LSU180HE LSU180CE TRUE LSN090CE LSN240HE LSN090HE LSU090HE LSU120CE

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LG

Room Air Conditioner

SERVICE MANUAL

MODELS: LSN090CE LSU090CE

LSN120CE LSU120CE

LSN180CE LSU180CE

LSN240CE LSU240CE

LSN090HE LSU090HE

LSN120HE LSU120HE

LSN180HE LSU180HE

LSN240HE LSU240HE

CAUTION

•BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

•ONLY FOR AUTHORIZED SERVICE PERSONNEL.

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LG Electronics LSU120CE, LSN090CE, LSU090HE, LSU090CE, LSN180CE, LSN120HE, LSN120CE, TRUE service manual Room Air Conditioner

Contents

Room Air Conditioner Table of Contents Installation Safety PrecautionsDo not modify or extend the power cord Be sure not to do Be sure to follow the instruction Operation Moisture may condense and wet or damage furnishings Low refrigerant levels may cause product failure Keep level even when installing the product On 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 Unit DIM 18k, 24k Introduction Features Installation Parts InstallationInstallation Tools Bushing-Sleeve Installation Map This Product Contains R-410A Refrigerant Confirm The Refrigerant Select The Best Location Rooftop InstallationsIndoor unit Outdoor unit Evap Moz/ft Piping Length And Elevation Drill a Hole In The Wall How To Mount Installation Plate Cut the pipes and the cable Flaring WorkBurrs removal Putting nut on Indoor unit installation Connecting The PipingIndoor Tighten the flare nut with a wrench Wrap the insulation material around the connecting portion Indoor unit installation Insert the connecting cable into the indoor unit Connection Indoor Incorrect case Correct case Connection Of Piping -Outdoor Connection Of The Drain Hose Connection Of The Cable Wiring Diagram Room Air Conditioner Drain piping Checking The Drainage Seal small openings around pipings with a gum type sealer Forming The Piping Air purging With Vacuum Pump Air PurgingPreparation Leak test Finishing the job Evacuation Charging Test Running Prepare remote controlSettlement of outdoor unit Evaluation of the performance Healthy Dehumidification Mode Cooling Mode OperationOperation Function of Controls Defrost Control Heating Mode Operation Chaos Natural Wind Mode Sleep Timer OperationJet Cool Mode Operation C/O Model Jet Cool Mode Operation H/P Model Test operation Forced operationAuto restart Protection of the evaporator pipe from frosting Self-diagnosis Function Display FunctionHeating Model Operation Mode Remote Control Operations To remove the Grille from the Chassis Disassembly To remove the Control Box To remove the Motor Cover Refrigeration Cycle Diagram Troubleshooting GuideCooling Only Models Cooling & Heating Models Way Valve Liquid Side Way, 3-way Valve Pumping Down Procedure Balance Refrigerant of the 3-way Valve Vacuum pump After Evacuation Gas Charging Method of using equation Method of using graphAccording to Indoor & Outdoor Temperature Additional gas charging Trouble analysis Cycle Parts Product does not operate at all Electronic Parts 9k model Electronic 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 operate When Vertical Louver does not operate When a comunication error occurs Indoor Unit Phenomena in case of connecting error Outdoor Unit Electric Control Device Schematic Diagram Outdoor 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 6871A20681 Cooling Only Product Specifications LS090HE LS120HE LS180HE LS240HE Cooling & Heating Exploded View Outdoor Unit 9k, 12k Btu/h Seriess 435512 W0CZZ-2 Outdoor Unit 18kH/P, 24k Seriess Parts List Indoor Replacement Parts List LSN180CE LSU120HE Parts List Outdoor Replacement Parts List LSU240HE No A20462V