LG MULTI V 5 Engineering Manual page 44

REFRIGERANT FLOW DIAGRAMS
ARUM144BTE5/DTE5, 168BTE5/DTE5, 192BTE5/DTE5, 216BTE5/DTE5, 241BTE5/DTE5
Heat Pump Operation — Upper Heat Exchanger Defrost
Heat Pump – Upper HEX Defrost Operation
Indoor HEX
Fan
M
Fan
M M Motor
Outdoor
Temperature
Sensor
s
Active Path
Outdoor Unit HEX
Valve
Temperature Sensor
Outdoor Unit HEX Outdoor
Temperature Sensor Unit HEX
Temperature
Sensor
Upper Outdoor EEV
Low Outdoor
EEV
Heatsink
Pressure Sensor
Remarks
Pressure Switch
44 | ODU PRODUCT DATA
EEV
Indoor Unit
4-Way Valve 2
High Pressure
Sensor
s
4-Way Valve 1
Low
Lower Hot
Pressure Sensor
Vapor Valve
Suction
s Temperature
Sensor
Upper Hot
Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
SC
Receiver
s
Suction
Inlet
Oil Return
Sub-Cooling Circuit Inlet
Temperature Sensor
Temperature Sensor
SVC Valve
©
Indoor HEX
EEV
Fan
M
Pressure Switch
Oil Separator
Comp 1 Comp 2
Discharge Discharge
Temperatue Sensor
Oil
Inverter
Balance
Comp 1
s
Comp 1 Vapor
Injection
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
SC
EEV
Check Valve
EEV
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Indoor Unit
Oil Separator
Oil
Inverter
Balance
Comp 2
s
Comp 2 Vapor
Injection
High Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature Sensor
Solenoid Valve
Strainer