Piping Diagrams; Heat Pump Model; Cooling Operation - LG ARUB115BT2 Service Manual

Piping Diagrams

4. Piping Diagrams

4.1 Heat Pump Model

4.1.1 ARUB076BT2, ARUB096BT2, ARUB115BT2

Cooling Operation

Heat Exch.
Heat Exch.
Heat Exch.
Heat Exch.
Pressure sensor
Pressure switch
Check valve
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Indoor unit
EEV
Fan
Filter
Indoor unit
EEV
Fan
Filter
Indoor unit
EEV
Fan
Filter
Indoor unit
EEV
Fan
Filter
4 Way Valve
O/S
INV
Comp
Liquid Injection
Sub-Cooler
EEV
Sensor
s
Solenoid
: Low temp./Low pressure gas
: High temp./High pressure liquid
: High temp./High pressure gas
High Pressure Gas Pipe
Hot Gas
By pass
Low Pressure Gas Pipe
Liquid Pipe
O/S
CON
Accum
Comp
Outdoor unit
Service Valve
Strainer
*( ) To be used only for series
- 8 -
HR unit
s
s
s
s
s
s
s
s
s
LGE Internal Use Only