LG Electronics LP121HEM-Y8 manual SVC Manual

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Internal Use Only

http://biz.lgservice.com

Window Air Conditioner

SVC MANUAL

MODEL : LP121HEM-Y8

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

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Contents SVC Manual LGE Internal Use Only SpecificationSleeve and the Rear Grille Features and BenefitsOutdoor Air Temperature Switchover Door Switch/Occupancy SensorTemperature limits Quick Heater RecoveryOperation Electric Heating Model Control LocationsVentilation Cooling only ModelAdditional Controls Temperature LimitingRemoving the Front Grille Additional ControlsREMOTE/LOCAL Control Molex Housing SpecEnergy Saver Front Desk ControlMechanical Parts Disassembly InstructionsFront Grille Control BOX Electric Heater Electric Heater Model only AIR Handling PartsAxial FAN Cross Flow FANShroud Electrical PartsOutdoor Motor Compressor6 P.C.B Power CordCondenser Refrigeration CycleEvaporator Capillary TubeLGE Internal Use Only Pulling Vacuum HOW to Install the Unit InstallationDimension of air conditioner Dimension of sleeve assembly optionalWall Case Installation Data Wall Sleeve InstallationGeneral As shipped, the LG wall sleeve is ready for installation Installation of Wall Case in Wall OpeningPreparation of the Front Grille Preparation of the Wall Case for All Types of ConstructionLGE Internal Use Only Sub-Base Connected Unit Installation Electrical Requirements Electrical SafetyElectrical Data for 230/208V Model 208, 230, and 208/230 Volt UnitsInstallation Field Installed AccessoriesControl Panel Key Lock DescriptionPart No AYSB2101 Condensate Disposal Pump Kit InstallationHazardous Voltage Place the top cover assembly back into the unit Spraying Architectural Grille Architecture Grille Aluminum Single PackCondensate Drain kit Drain InstallationPart No AYDR101 Outdoor Drain Kit Installation Outdoor Drain Kit InstallationChecklist Indoor Drain Kit InstallationLeveling Legs Part No AYLL101Leveling Leg Assembly Installation on Wall Sleeve Leveling Leg AssemblyJunction Box Kit Installation and Wiring Procedure Hard Wire KitPart No AYAGALA01 Use Copper Conductors OnlyVolt Units 208/230 Volt UnitsPart No AYRE110 Remote Escutcheon KitPart No AYSB1101 230/208V 20A AYSB2101 230/208V 30A SubbaseTo each installation instruction for that accessory After wiring is complete, mount covers a and F toSkirting Hole Location Right Cover Assembly Subbase with provided screws. FigureOutside Dimensions Troubleshooting GuidePiping System 066mm 406mm 505mmTroubleshooting Guide Fails to Start Complaint Cause Remedy 208/230V 187V 253V Room AIR Conditioner Voltage LimitsComplaint Cause Remedy Th2 Thermistor for Evaporator pipe temperature Piping DiagramsTh3 Thermistor for outdoor Air temperature Th4 Thermistor for Condenser pipe Air temperatureCN-NN Schematic Diagram435300B Exploded ViewJanuary