LG Electronics 230/208V service manual REMOTE/LOCAL Control, Energy Saver, Front Desk Control

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• REMOTE/LOCAL CONTROL

When remote/local switch #1 is on, it allow the unit to operate by the control of Remote Wall Thermostat. The unit control by knobs are not available.

• ENERGY SAVER

The energy saver switch #2 is on. This switch is set at continuous fan to provide continuous fan operation in cool or heat modes. When the switch is off the continuous fan allows continuous circulation of room air and make the more balanced temperature of the room. When the switch is on the fan is on or off with the compressor or with the heater.

• FRONT DESK CONTROL

When the pair wire is connected to the connector LOand LI, the unit can be turned ON or OFF with a switch located at the Front Desk Control panel. When the front desk switch is ON, the fan operate according to the condition of setting without working compressor and heater. When the front desk switch is OFF, the unit can operate according to the setting of controls.

Wire # AWG

Maximum Length

#22

600ft(180m)

#20

900ft(270m)

#18

1500ft(450m)

#16

2000ft(610m)

LO LI GL GH O W Y R C

Front Desk Switch

• REMOTE WALL THERMOSTAT

When the wires are connected, the unit will be controlled by a remote wall thermostat.

The thermostat connections supply the 24 Volt AC. When you install the digital / electronic thermostat, you must set it to the 24 Volt AC. See the installation Instruction in this manual for the Remote Wall Thermostat.

24Volt-N

24Volt-L

Compressor

Heater

Reversing Valve

High Fan

Low Fan

Note: The following figures show wiring schematics for heat pump and straight cool units with electric heat, respectively.

Wiring Schematic for

Remote Heat Pump

Wiring Schematic for

Straight Cool Unit.

LO LI GL GH O W Y R C

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Contents LG Room Air Conditioner Contents PrefaceCooling / Heat Pump / Electric SpecificationsCooling / Electric Heater Features Condensate Drain Valve Control Locations Operation Electric Heating ModelVentilation Cooling only ModelTemperature Limiting Additional ControlsRemoving the Front Grille Additional ControlsREMOTE/LOCAL Control Energy SaverFront Desk Control Remote Wall ThermostatFront Grille Disassembly InstructionsMechanical Parts Control BOX Half-Disassembly Control BOX Full-Disassembly2 FAN Heater Assembly and Cross Flow FANAIR Handling Parts Electrical Parts ShroudOutdoor Motor CompressorPower Cord 6 P.C.BRefrigeration Cycle CondenserEvaporator Capillary TubePage Pulling Vacuum HOW to Install the Unit Dimension of air conditionerDimension of sleeve assembly optional If YOU Want to Pull OUT the Filter DownwardSuggested Tool Requirements Preparation of the Front GrilleSleeve Hardware Assemble the Wall SleeveUnit Installation Electrical Safety Electrical RequirementsElectrical Data for 230/208V Model Important Grounding InstructionsAir Conditioner Performance Data Heat Pump Performance DataCooling Wattage Air Conditioners LP120CEMCooling Wattage Heat Pumps Cooling change of temperature Air Conditioners Cooling Change of Temperature Heat PumpsCooling Ampere Chart Heat Pumps Heating Change of Temperature Heat PumpsCooling Ampere Chart Air Conditioners Piping System Troubleshooting GuideOutside Dimensions Troubleshooting Guide Fails to Start Complaint Cause Remedy Room AIR Conditioner Voltage Limits Name Plate Rating Minimum MaximumComplaint Cause Remedy Schematic Diagram Location Description QTY Remarks PER SETExploded View Replacement Parts List Description Remark LP090HEM LP120CEM LP120HEMNo A20308H May