Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LP121CEM-Y8 manual LGE Internal Use Only, Only for training and service purposes

Models: LP121CEM-Y8

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Only for training and service purposes

LGE Internal Use Only

Page 20

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LG Electronics LP121CEM-Y8 manual LGE Internal Use Only, Only for training and service purposes

Contents

Window Air Conditioner SVC MANUALMODEL LP121CEM-Y8 Internal Use Only1. Specification LGE Internal Use OnlyModel LP121CEM-Y81.2 FEATURES AND BENEFITS THE SLEEVE AND THE REAR GRILLECompressor Restart Delay Fan-Only Setting - High/LowDoor Switch/Occupancy Sensor Outdoor Air Temperature SwitchoverTemperature limits Quick Heater Recovery1.3 CONTROL LOCATIONS OPERATION ELECTRIC HEATING MODELVENTILATION COOLING ONLY MODELTEMPERATURE LIMITING 1.4 ADDITIONAL CONTROLSREMOVING THE FRONT GRILLE ADDITIONAL CONTROLSREMOTE/LOCAL CONTROL ENERGY SAVERFRONT DESK CONTROL REMOTE WALL THERMOSTAT2.1.1 FRONT GRILLE 2. Disassembly Instructions2.1 MECHANICAL PARTS 2.1.2 CONTROL BOX 2.2 AIR HANDLING PARTS 2.2.1 ELECTRIC HEATER ELECTRIC HEATER MODEL ONLY2.2.2 CROSS FLOW FAN 2.2.3 AXIAL FAN2.3. ELECTRICAL PARTS 2.2.4 SHROUD2.3.1 OUTDOOR MOTOR 2.3.3 COMPRESSOR2.3.5 POWER CORD 2.3.6 P.C.B2.4 REFRIGERATION CYCLE 2.4.1 CONDENSER2.4.2 EVAPORATOR 2.4.3 CAPILLARY TUBEReplacement of the refrigeration cycle Figure 21 A-Pulling Vacuum Figure 21 B-Charging3. Installation 3.1 HOW TO INSTALL THE UNITDimension of air conditioner Dimension of sleeve assembly optionalGeneral 3.2 WALL SLEEVE INSTALLATION3.2.1 Wall Case Installation Data Installation of Wall Case in Wall Opening 3.2.2 PREPARATION OF THE FRONT GRILLEPreparation of the Wall Case for All Types of Construction Brick, Frame, Stucco and Shingle ConstructionOnly for training and service purposes LGE Internal Use OnlyFRAME AND BRICK VENEER INSTALLATION Sub-Base ConnectedWALL SECTION - DETAILED SIDE VIEW Cord Set Connected3.2.3 UNIT INSTALLATION 3.3.2 ELECTRICAL SAFETY 3.3 ELECTRICAL REQUIREMENTS3.3.1 ELECTRICAL DATA FOR 230/208V MODEL 230/208 volt receptacle configuration4. FieldInstalledAccessories InstallationControl Panel Key Lock DescriptionCondensate Disposal Pump Kit Installation InstallationDescription Receiving10. Place the top cover assembly back into the unit LGE Internal Use Only15. Assembly the unit back following the reverse order of disassembly Installation on any PTAC installationArchitecture Grille Aluminum - Single PackDrain Installation Condensate Drain kitInstallation ReceivingOutdoor Drain Kit Installation Figure 42 - Outdoor Drain Kit InstallationIndoor Drain Kit Installation Leveling LegsInstallation ChecklistLeveling Leg Assembly Figure 48 - Leveling Leg AssemblyInstallation on Wall Sleeve Figure 49 - Leveling Leg Installation on Wall SleeveHard Wire Kit Junction Box Kit Installation and Wiring ProcedureInstallation Description208/230 Volt Units 265 Volt UnitsFigure 50 - Mounting Hard Wire Junction Box Kit Figure 52 - Electrical Wiring RoutingRemote Escutcheon Kit InstallationDescription ReceivingSubbase InstallationDescription ReceivingFigure 59 - Dimensions Figure 60 - Wiring DiagramThe proper subbase must be ordered to obtain the correct electrical receptacle. Figure5.2 PIPING SYSTEM 5. TroubleshootingGuide5.1 OUTSIDE DIMENSIONS 5.3 TROUBLESHOOTING GUIDE Unit is running but cooling is ineffective Ineffective CoolingFails to Start REMEDY COMPLAINTCAUSE ROOM AIR CONDITIONER VOLTAGE LIMITS COMPLAINTCAUSE REMEDYREMEDY COMPLAINTCAUSE CAPILLARY TUBE HEAT EXCHANGER CONDENSER COMPRESSOR 6. PipingDiagramsTh2 Th1 HEAT EXCHANGER EVAPORATOR In part B, there are 3 types 7.Schematic DiagramIn part A, there are 3 types 8. ExplodedView CONDENSER OUTDOOR SERVICE REPLACEMENT PROCEDURE Copper pipe Aluminum pipeBrazing point in assembling orP/NO MFL42137114 FEBRUARY