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LG Electronics LP121CEM-Y8 manual Control Locations, Operation Electric Heating Model, Ventilation

Models: LP121CEM-Y8

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1.3 CONTROL LOCATIONS

1.3 CONTROL LOCATIONS

•OPERATION

ELECTRIC HEATING MODEL

TEMPERATURE CONTROL

Set the Thermostat control to the desired temperature mark 5 (the mid-point is a good starting position). If the room temperature is not satisfactory after a reasonable time, adjust the control to a cooler or warmer setting, as appropriate.

•VENTILATION

The ventilation lever is located to the lower left side of the unit. The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions.

When fresh air is necessary in the room, set the ventilation lever to the OPEN position.

The damper is opened and outdoor air is drawn into the room. This will reduce the cooling or heating efficiency.

CAUTION

When the air conditioner has performed a cooling or heating operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation.

COOLING ONLY MODEL

OPERATION MODE SELECTOR

OFF	Turns air conditioner off.
LOW FAN	Low speed fan operation without cooling.
HIGH FAN	High speed fan operation without cooling.
LOW COOL	Cooling with the low speed fan operation.
HIGH COOL	Cooling with the high speed fan operation.
LOW HEAT	Heating with the low speed fan operation.
HIGH HEAT	Heating with the high speed fan operation.

VENT

VENT CLOSE

OPEN

NOTE

A slight heat odor may come from the unit when first switching to HEAT after the cooling season is over.

This odor, caused by fine dust particles on the heater, will disappear quickly. This is harmless.

Copyright ©2008 LG Electronics. Inc. All right reserved.	- 5 -
Only for training and service purposes	LGE Internal Use Only
Only for training and service purposes

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LG Electronics LP121CEM-Y8 manual Control Locations, Operation Electric Heating Model, Ventilation, Cooling Only Model

Contents

SVC MANUAL Window Air ConditionerMODEL LP121CEM-Y8 Internal Use OnlyLGE Internal Use Only 1. SpecificationModel LP121CEM-Y8THE SLEEVE AND THE REAR GRILLE 1.2 FEATURES AND BENEFITSCompressor Restart Delay Fan-Only Setting - High/LowOutdoor Air Temperature Switchover Door Switch/Occupancy SensorTemperature limits Quick Heater RecoveryOPERATION ELECTRIC HEATING MODEL 1.3 CONTROL LOCATIONSVENTILATION COOLING ONLY MODEL1.4 ADDITIONAL CONTROLS TEMPERATURE LIMITINGREMOVING THE FRONT GRILLE ADDITIONAL CONTROLSENERGY SAVER REMOTE/LOCAL CONTROLFRONT DESK CONTROL REMOTE WALL THERMOSTAT2.1.1 FRONT GRILLE 2. Disassembly Instructions2.1 MECHANICAL PARTS 2.1.2 CONTROL BOX 2.2.1 ELECTRIC HEATER ELECTRIC HEATER MODEL ONLY 2.2 AIR HANDLING PARTS2.2.3 AXIAL FAN 2.2.2 CROSS FLOW FAN2.2.4 SHROUD 2.3. ELECTRICAL PARTS2.3.1 OUTDOOR MOTOR 2.3.3 COMPRESSOR2.3.6 P.C.B 2.3.5 POWER CORD2.4.1 CONDENSER 2.4 REFRIGERATION CYCLE2.4.2 EVAPORATOR 2.4.3 CAPILLARY TUBEReplacement of the refrigeration cycle Figure 21 B-Charging Figure 21 A-Pulling Vacuum3.1 HOW TO INSTALL THE UNIT 3. InstallationDimension of air conditioner Dimension of sleeve assembly optionalGeneral 3.2 WALL SLEEVE INSTALLATION3.2.1 Wall Case Installation Data 3.2.2 PREPARATION OF THE FRONT GRILLE Installation of Wall Case in Wall OpeningPreparation of the Wall Case for All Types of Construction Brick, Frame, Stucco and Shingle ConstructionLGE Internal Use Only Only for training and service purposesSub-Base Connected FRAME AND BRICK VENEER INSTALLATIONWALL SECTION - DETAILED SIDE VIEW Cord Set Connected3.2.3 UNIT INSTALLATION 3.3 ELECTRICAL REQUIREMENTS 3.3.2 ELECTRICAL SAFETY3.3.1 ELECTRICAL DATA FOR 230/208V MODEL 230/208 volt receptacle configurationInstallation 4. FieldInstalledAccessoriesControl Panel Key Lock DescriptionInstallation Condensate Disposal Pump Kit InstallationDescription ReceivingLGE Internal Use Only 10. Place the top cover assembly back into the unit15. Assembly the unit back following the reverse order of disassembly on any PTAC installation InstallationArchitecture Grille Aluminum - Single PackCondensate Drain kit Drain InstallationInstallation ReceivingFigure 42 - Outdoor Drain Kit Installation Outdoor Drain Kit InstallationLeveling Legs Indoor Drain Kit InstallationInstallation ChecklistFigure 48 - Leveling Leg Assembly Leveling Leg AssemblyInstallation on Wall Sleeve Figure 49 - Leveling Leg Installation on Wall SleeveJunction Box Kit Installation and Wiring Procedure Hard Wire KitInstallation Description265 Volt Units 208/230 Volt UnitsFigure 50 - Mounting Hard Wire Junction Box Kit Figure 52 - Electrical Wiring RoutingInstallation Remote Escutcheon KitDescription ReceivingInstallation SubbaseDescription ReceivingFigure 60 - Wiring Diagram Figure 59 - DimensionsThe proper subbase must be ordered to obtain the correct electrical receptacle. Figure5.2 PIPING SYSTEM 5. TroubleshootingGuide5.1 OUTSIDE DIMENSIONS Unit is running but cooling is ineffective Ineffective Cooling 5.3 TROUBLESHOOTING GUIDEFails to Start REMEDY COMPLAINTCAUSE COMPLAINT ROOM AIR CONDITIONER VOLTAGE LIMITSCAUSE 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 Copper pipe Aluminum pipe CONDENSER OUTDOOR SERVICE REPLACEMENT PROCEDUREBrazing point in assembling orFEBRUARY P/NO MFL42137114