LG Multi-Inverter - Special Function & KIT; Zone Controller; Low Ambient Control

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 2 Functions & Controls
7.1 Zone Controller
This feature can be used to control the operation of the Air Conditioning Unit where each zone (maximum of 4 zones)
has a separate thermostat and damper motor, your Air Conditioning
7. Special Function & KIT
Zone control
sub PCB
ABZCA
Room1 Thermostat
Damper Motor Damper Motor
Damper Motor Damper Motor
Room2 Thermostat
Room3 Thermostat Room4 Thermostat
7.2 Low Ambient control
• This Function is for cooling operating in outdoor low temperature .
• If outdoor temperature drops below certain temperature, liquid back is prevented by reducing outdoor fan speed.
• It can prevent frosting of evaporator and keep cooling operation
T2°C
T1°C
Outdoor pipe
Outdoor
Fan Speed
Setting Speed Off Off
Setting
Speed
Setting
Speed