LG Multi V5 Service Manual page 40

REFRIGERANT FLOW DIAGRAMS
ARUM144BTE5/DTE5, 168BTE5/DTE5, 192BTE5/DTE5, 216BTE5/DTE5, 241BTE5/DTE5
Heat Recovery Operation — Oil Return and Defrost
Heat Recovery – Oil Return and Defrost Operation
Indoor HEX
Fan
Indoor HEX
Fan
Indoor HEX
Fan
Indoor HEX
Fan
M
M
Outdoor
Temperature
Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX Outdoor
Temperature Sensor Unit HEX
Temperature
Upper Outdoor
EEV Close
Remarks
40
EEV
Indoor Unit
EEV
Indoor Unit
EEV
Indoor Unit
EEV
Indoor Unit
Fan
Motor
4-Way Valve 2
High Pressure
s
Active Path
Valve
s
4-Way Valve 1
Low
Lower Hot
Pressure Sensor
Vapor Valve
Close
Suction
s
Temperature
Sensor
Sensor
Upper Hot
Vapor Valve
Receiver
Close
Accum
Lower Outdoor
SC
Receiver
EEV
s
Suction
Inlet
Oil Return
Sub-Cooling Circuit Inlet
Temperature Sensor
Heatsink
Pressure Sensor
Pressure Switch
Due to our policy of continuous product innovation, some specifications may change without notification.
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Pressure Switch
Sensor
Oil Separator
Comp 1
Comp 2
Discharge
Discharge
Temperatue Sensor
Temperatue Sensor
Receiver
Outlet
Oil
Inverter Inverter
Balance
Comp 1 Comp 2
s
Comp 1 Vapor Comp 2 Vapor
Injection Injection
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
SC
EEV
Temperature Sensor
SVC Valve
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
HR unit
s
s
s
s
s
s
s
s
s
Oil Separator
Oil
Balance
s
High Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature Sensor
Check Valve Solenoid Valve
EEV Strainer