LG 230/208V Service Manual - Page 8
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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
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
R
C
Note: The following figures show wiring
schematics for heat pump and straight cool
units with electric heat, respectively.
—8—
Wiring Schematic for
Remote Heat Pump
Wiring Schematic for
Straight Cool Unit.