LG Electronics LP121CEM-Y8 manual Troubleshooting Guide, Outside Dimensions, Piping System

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5. TroubleshootingGuide

5.1 OUTSIDE DIMENSIONS

1,066mm (42")

406mm (16")

505mm (20")

406mm (16")

5.2 PIPING SYSTEM

Following is a brief description of the important components and their functions in the refrigeration system. Refer to Figure 62 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

ROOM AIR CONDITIONER

CYCLE OF REFRIGERATION

EVAPORATOR COILS

CONDENSER COILS

COOLED AIR

 

SUCTION LIME

VAPOR INLET

COMPLETE LIQUID

 

COOL LOW PRESSURE VAPOR

 

BOIL OFF POINT

 

 

 

ROOM AIR HEAT LOAD

 

OUTSIDE COOLING

AIR FOR REFRIGERANT

PASS THROUGH

MOTOR

COMPRESSOR

OIL

HOT DISCHARGED AIR

LIQUID PRESSURE DROP

LIQUID OUTLET

(LIQUID REFRIGERANT)

HIGH PRESSURE VAPOR

CAPILLARY TUBE

 

LIQUID PEFRIGERANT

 

 

Figure 62

LOW PRESSURE VAPOR

Copyright ©2008 LG Electronics. Inc. All right reserved.

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Only for training and service purposes

LGE Internal Use Only

 

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Contents SVC Manual Specification Model LP121CEM-Y8Features and Benefits Sleeve and the Rear GrilleTemperature limits Door Switch/Occupancy SensorOutdoor Air Temperature Switchover Quick Heater RecoveryVentilation Control LocationsOperation Electric Heating Model Cooling only ModelRemoving the Front Grille Temperature LimitingAdditional Controls Additional ControlsFront Desk Control REMOTE/LOCAL ControlEnergy Saver Remote Wall ThermostatFront Grille Disassembly InstructionsMechanical Parts Control BOX AIR Handling Parts Electric Heater Electric Heater Model onlyCross Flow FAN Axial FANOutdoor Motor Electrical PartsShroud CompressorPower Cord 6 P.C.BEvaporator Refrigeration CycleCondenser Capillary TubeLGE Internal Use Only Pulling Vacuum Dimension of air conditioner InstallationHOW to Install the Unit Dimension of sleeve assembly optionalGeneral Wall Sleeve InstallationWall Case Installation Data Preparation of the Wall Case for All Types of Construction Installation of Wall Case in Wall OpeningPreparation of the Front Grille LGE Internal Use Only Sub-Base Connected Unit Installation Electrical Data for 230/208V Model Electrical SafetyElectrical Requirements 208, 230, and 208/230 Volt UnitsControl Panel Key Lock Field Installed AccessoriesInstallation DescriptionCondensate Disposal Pump Kit Installation Hazardous VoltagePlace the top cover assembly back into the unit Spraying Architecture Grille Aluminum Single Pack Architectural GrilleDrain Installation Condensate Drain kitOutdoor Drain Kit Installation Outdoor Drain Kit InstallationLeveling Legs Indoor Drain Kit InstallationChecklist Leveling Leg Assembly Leveling Leg Assembly Installation on Wall SleeveUse Copper Conductors Only Hard Wire KitJunction Box Kit Installation and Wiring Procedure 208/230 Volt Units Volt UnitsRemote Escutcheon Kit Standard EscutcheonSubbase Part/Location Identification Piping System Troubleshooting GuideOutside Dimensions Troubleshooting Guide Fails to Start Complaint Cause Remedy Room AIR Conditioner Voltage Limits 208/230V 187V 253VComplaint Cause Remedy Piping Diagrams CN-IDPTSchematic Diagram Part A, there are 3 typesExploded View 435300BCondenser Outdoor Service Replacement Procedure Enlarged pictureFebruary