Manuals / LG Electronics / Household Appliance / Air Conditioner

LG Electronics LP121CEM-Y8 manual P/NO MFL42137114, February

Models: LP121CEM-Y8

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P/NO : MFL42137114	FEBRUARY, 2008

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LG Electronics LP121CEM-Y8 manual P/NO MFL42137114, February

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 GRILLEFan-Only Setting - High/Low LED DiagnosticsDoor Switch/Occupancy Sensor Outdoor Air Temperature SwitchoverQuick Heater Recovery Indoor Filters1.3 CONTROL LOCATIONS OPERATION ELECTRIC HEATING MODELVENTILATION COOLING ONLY MODEL1.4 ADDITIONAL CONTROLS REMOVING THE FRONT GRILLEADDITIONAL CONTROLS TEMPERATURE LIMITINGREMOTE/LOCAL CONTROL ENERGY SAVERFRONT DESK CONTROL REMOTE WALL THERMOSTAT2. Disassembly Instructions 2.1 MECHANICAL PARTS2.1.1 FRONT GRILLE 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 optional3.2 WALL SLEEVE INSTALLATION 3.2.1 Wall Case Installation DataGeneral 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. TroubleshootingGuide 5.1 OUTSIDE DIMENSIONS5.2 PIPING SYSTEM 5.3 TROUBLESHOOTING GUIDE Unit is running but cooling is ineffective Ineffective CoolingFails to Start COMPLAINT CAUSEREMEDY ROOM AIR CONDITIONER VOLTAGE LIMITS COMPLAINTCAUSE REMEDYCOMPLAINT CAUSEREMEDY 6. PipingDiagrams Th2 Th1 HEAT EXCHANGER EVAPORATORCAPILLARY TUBE HEAT EXCHANGER CONDENSER COMPRESSOR 7.Schematic Diagram In part A, there are 3 typesIn part B, there are 3 types 8. ExplodedView CONDENSER OUTDOOR SERVICE REPLACEMENT PROCEDURE Copper pipe Aluminum pipeBrazing point in assembling orP/NO MFL42137114 FEBRUARY

P/NO : MFL42137114

FEBRUARY, 2008