LG ARNU Series - Heating Operation

- 184 -
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Only for training and service purposes
LGE Internal Use Only
184 Outdoor Unit
4.1.2 Heating Operation
INV : Inverter 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
Gas pipe
Liquid pipe
Accum.
Liquid Injection
INV
O/S
Pressure sensor
Pressure switch
Check valve
EEV
Thermistor
Solenoid valve
Service valve
Strainer
S
S
S
Piping Diagrams