LG Electronics LP121CEM-Y8 Additional Controls, Removing the Front Grille, Temperature Limiting

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1.4ADDITIONAL CONTROLS

REMOVING THE FRONT GRILLE

Additional controls are available after removing the front grille and option cover of control box.

To remove the front grille, pull out the bottom of front grille and then lift up.

To replace the front grille, place the tabs over the top of the unit and push the bottom of front grille until the clips snap into place.

ADDITIONAL CONTROLS

The additional controls are located behind the option cover of control box. The standard settings will be in the OFF position. The authorized service man has to check switches and ensure the switches are in the desired position.

REMOTE ON

ON

ON

ON

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCAL OFF OFF OFF OFF

Remote/Local

1

 

2

 

3

4

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Energy Saver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature Limit 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature Limit 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature Limit 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMPERATURE LIMITING

Temperature Limiting can save money by limiting the lowest temperature for cooling and the highest temperature for heating. The temperature limiting is controlled by dip switch #1 - #3.

This temperature limiting is not available with the Remote Wall Thermostat.

Temperature

Temperature

Temperature

Cooling Operation

Heating Operation

Limit #1

Limit #2

Limit #3

Lowest Temp.

Highest Temp.

Lowest Temp.

Highest Temp.

 

 

 

 

 

 

 

OFF

OFF

OFF

54°F (12.2°C)

86°F (30.0°C)

54°F (12.2°C)

86°F (30.0°C)

 

 

 

 

 

 

 

ON

OFF

OFF

56°F (13.3°C)

86°F (30.0°C)

54°F (12.2°C)

84°F (28.9°C)

 

 

 

 

 

 

 

OFF

ON

OFF

58°F (14.4°C)

86°F (30.0°C)

54°F (12.2°C)

82°F (27.8°C)

 

 

 

 

 

 

 

ON

ON

OFF

60°F (15.5°C)

86°F (30.0°C)

54°F (12.2°C)

80°F (26.7°C)

 

 

 

 

 

 

 

OFF

OFF

ON

62°F (16.6°C)

86°F (30.0°C)

54°F (12.2°C)

78°F (25.5°C)

 

 

 

 

 

 

 

ON

OFF

ON

64°F (17.7°C)

86°F (30.0°C)

54°F (12.2°C)

76°F (24.4°C)

 

 

 

 

 

 

 

OFF

ON

ON

66°F (18.9°C)

86°F (30.0°C)

54°F (12.2°C)

74°F (23.3°C)

 

 

 

 

 

 

 

ON

ON

ON

68°F (20.0°C)

86°F (30.0°C)

54°F (12.2°C)

72°F (22.2°C)

 

 

 

 

 

 

 

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

- 6 -

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 ThermostatDisassembly Instructions Mechanical PartsFront Grille 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 optionalWall Sleeve Installation Wall Case Installation DataGeneral Installation of Wall Case in Wall Opening Preparation of the Front GrillePreparation of the Wall Case for All Types of Construction 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 InstallationIndoor Drain Kit Installation ChecklistLeveling Legs Leveling Leg Assembly Leveling Leg Assembly Installation on Wall SleeveHard Wire Kit Junction Box Kit Installation and Wiring ProcedureUse Copper Conductors Only 208/230 Volt Units Volt UnitsRemote Escutcheon Kit Standard EscutcheonSubbase Part/Location Identification Troubleshooting Guide Outside DimensionsPiping System 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