Piping Diagrams - LG Multi V PRHR041 Service Manual

Piping Diagrams

4. Piping Diagrams
4.1 HR Unit
Low pressure gas pipe
Liquid pipe
High pressure gas pipe
s
Solenoid
EEV
Sensor
Ⓐ : To be switched operation between cooling and heating by two Solenoid valve
Ⓑ : To be used decreasing noise according to sub-cooling of inlet and outlet of indoor unit
(Simultaneous operation)
Ⓒ : To prevent liquid charging between high pressure gas valve and HR unit at cooling mode
Ⓓ : To be controlled the pressure between high and low pressure pipe during operation switching
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B
A
s s
s
s
D
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s s
s s
s
s
LGE Internal Use Only
s
C
s s