LG Electronics LP121CEM-Y8 manual Refrigeration Cycle, Condenser, Evaporator, Capillary Tube

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2.4 REFRIGERATION CYCLE

CAUTION

Discharge the refrigerant system using a refrigerant recovery system.

If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the refrigerant. Leave the valve in place after servicing the system.

2.4.1 CONDENSER

1.Remove the brace and the shroud. (Refer to section 2.2.2)

2.Remove the 4 screws which fasten the shroud. (Refer to section 2.2.2)

3.Push forward the shroud and remove the 2 screws which fasten the condenser with the basepan.

4.After discharging the refrigerant completely, unbraze the interconnecting tube at the condenser connections.

5.Remove the condenser.

6.Re-install the components by referring to notes. (See Figure 19)

2.4.2 EVAPORATOR

1.Remove the front grille. (Refer to section 2.1.1)

2.Discharge the refrigerant completely.

3.Remove the control box assembly. (Refer to section 2.1.2)

4.Remove the 4 screws which fasten the evaporator at the left side and the right side.

5.Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors.

6.Remove the evaporator.

7.Re-install the components by referring to notes. (See Figure 20)

2.4.3 CAPILLARY TUBE

1.After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.

2.Remove the capillary tube.

3.Re-install the components by referring to notes.

Figure 19

Figure 20

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

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Only for training and service purposes

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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