LG ARUV Series Service Manual page 24

Piping Diagrams
Oil Return/ Defrost Operation
Fan
DC DC
Outdoor
Temperature
Sensor
Outdoor
EEV
Sub-cooli ng Circuit
Outlet Temperature
Sensor
Sub-cooli ng Circuit
Inlet Temperature
Sensor
Press ure Sensor
Remarks
Press ure Switch
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Only for training and service purposes
Ind oor Unit
UW1(8HP) Model
Fan Fan
DC DC
Outdoor Unit
HEX Temperature
Sensor
High Press ure
Sensor
Suction
Temperature
Sensor
Oil
Separator
Comp
Disc harge
Temperature
Sensor
Inverter
Comp
Liquid Injection
Liquid Pipe Temp. Sensor
Double-Tube HEX
Sub-Coo ling EEV
Temperature Sensor
SVC Valve
Fan
High Temp. High Press ure Gas
High Temp. High Press ure Liqu id
Low Temp. Low Press ure Gas
Hot Gas
Valve
Low
Press ure
Sensor
Acc umulator
Check valve
EEV
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Ind oor Unit
Gas Pipe
Liquid Pipe
Outdoo r Uni t
Soleno id valve
Strainer
LGE Internal Use Only