LG ARNU Series - Page 187

- 187 -
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.2.2 Heating Operation
INV : Inverter compressor
CON : Constant speed compressor
EEV : Linear Expansion Valve
O/S : Oil Separator
Accum. : Accumulator
:High temperature / High pressure liquid
:High temperature / High pressure gas
:Low temperature / Low pressure gas
Heat Exchanger
Fan
lndoor unit
EEV
Filter
Filter
Heat Exchanger
Fan
lndoor unit
EEV
Filter
Filter
H/G
IM FAN IM FAN
Gas pipe
Liquid pipe
O/S
Liquid Injection
O/S
INV
CON
S
S S
Accum.
Pressure sensor
Pressure switch
Check valve
EEV
Thermistor
Solenoid valve
Service valve
Strainer
S
Piping Diagrams