LG MULTI V 5 Manual Book page 25

Multi V 5
3. Piping Diagrams
■ Oil Return/ Defrost Operation
Oil Return/ Defrost Operation
Indoor HEX EEV
Fan
Indoor Unit
Fan
Motor
Outdoor
Sub 4-Way Valve
Temperature
Sensor
High Pressure
Sensor
Active
Outdoor Unit HEX
Temperature Sensor Path
Main 4-Way
Valve
Low
Low Hot
Outdoor Unit HEX Outdoor
Pressure Sensor
Vapor Valve
Temperature Sensor Unit HEX
Suction
Temperature
Temperature
Sensor Comp 1
Sensor
Discharge
Upper Hot
Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
Upper Outdoor EEV
Low Outdoor
SC
EEV Receiver
Inlet Suction
Oil Return
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling Circuit Inlet
Temperature Sensor
Heatsink
Pressure Sensor Temperature Sensor
Remarks
Pressure Switch SVC Valve
048
_TROUBLE SHOOTING GUIDE BOOK
Outdoor Units
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Indoor HEX EEV
Fan
Indoor Unit
Pressure Switch
O S l i p e a r a r o t O S l i p e a r a r o t
Comp 2
Discharge
Temperatue Sensor
Oil Oil
Inverter
Balance Balance
Comp 2
Comp 1 Vapor Comp 2 Vapor
Injection Injection
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Sub-Cooling HEX
Liquid Pipe
Temperature Sensor
SC
EEV
Check Valve Solenoid Valve
EEV Strainer
Multi V 5
3. Piping Diagrams
■ Upper HEX Defrost Operation
Upper HEX Defrost Operation
Indoor HEX
EEV
Fan
Indoor Unit
Fan
Motor
Outdoor
Sub 4-Way Valve
Temperature
Sensor
High Pressure
Sensor
Active
Outdoor Unit HEX
Path
Temperature Sensor
Main 4-Way
Valve
Low
Low Hot
Outdoor Unit HEX Outdoor
Pressure Sensor
Vapor Valve
Temperature Sensor Unit HEX
Suction
Temperature
Temperature
Sensor
Comp 1
Sensor
Discharge
Upper Hot
Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
Upper Outdoor EEV
Low Outdoor
Receiver SC
EEV
Suction
Inlet
Oil Return
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
Heatsink
Pressure Sensor Temperature Sensor
Remarks
Pressure Switch SVC Valve
Outdoor Units
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Indoor HEX
EEV
Fan
Indoor Unit
Pressure Switch
O S l i p e a r a r o t O S l i p e a r a r o t
Comp 2
Discharge
Temperatue Sensor
Oil Oil
Inverter Inverter
Balance Balance
Comp 1 Comp 2
Comp 1 Vapor Comp 2 Vapor
Injection Injection
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature Sensor
SC
EEV
Check Valve Solenoid Valve
EEV Strainer
049
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