Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
- 11 -
Piping Diagrams
s
Pressure sensor
Pressure switch
Check valve
EEV
Sensor
Solenoid
Service Valve
Strainer
High Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
EEV
Indoor unit
Fan
Heat Exch.
Filter
CON
Comp
INV
Comp
O/S
O/S
s
s
s
Sub-Cooler
Liquid Injection
Accum
4 Way Valve
s
Outdoor unit
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
EEV
Indoor unit
Fan
Heat Exch.
Filter
Cooling
"ON"
Cooling
"ON"
Cooling
"ON"
Heating
"ON"
Hot Gas
By pass
Simultaneous Operation Mode 1 (Cooling Based operation)
Summary of Contents for ARUB115BT2
Page 18: ...P NO MFL54555502 JUNE 2008 ...
