LG LP073HD3A Owner's Manual page 19

• 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)
Maximum Length
600ft(180m)
900ft(270m)
1500ft(450m)
2000ft(610m)
Control Locations
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.
Ownerʼs Manual 19