Remote/Local Control; Energy Saver; Front Desk Control; Remote Wall Thermostat - LG LP091HEM-Y8 Svc Manual

• 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
#22
#20
#18
#16
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.
24 Volt-N
24 Volt-L
Compressor
Heater
Reversing Valve
High Fan
Low Fan
LO LI GL GH O W Y R C
(Molex Housing Spec 396-09V)
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Maximum Length
600ft(180m)
900ft(270m)
1500ft(450m)
2000ft(610m)
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.
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LGE Internal Use Only