LG MULTI V 5 Manual Book page 18

Multi V 5
3. Piping Diagrams
■ Heating Operation Heating Operation
Indoor HEX EEV
Fan
Indoor Unit
Fan
Motor
Outdoor
Sub 4-Way Valve
Temperature
Sensor High Pressure
Sensor
Outdoor Unit HEX Active
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
Discharge
Sensor
Sensor
Upper Hot Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
Upper Outdoor EEV
Low Outdoor
SC
Receiver
EEV
Suction
Inlet
Oil Return
Sub-Cooling Circuit Inlet
Temperature Sensor
Heatsink
*14,16HP have 2fans.
Pressure Sensor Temperature Sensor
Remarks
Pressure Switch SVC Valve
034
_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
Oil Separator
Comp 1
Inverter
Comp 1
Comp 1
Vapor
Injection
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Sub-Cooling Circuit
Liquid Pipe
Outlet Temperature Sensor
Sub-Cooling HEX
Liquid Pipe
Temperature Sensor
SC
EEV
Check Valve Solenoid Valve
EEV Strainer
Multi V 5
3. Piping Diagrams
■ Oil Return/ Defrost Operation
Oil Return/ Defrost Operation
Indoor HEX EEV
Fan
Indoor Unit
Fan
Motor
Outdoor
Temperature
Sensor
Active
Outdoor Unit HEX
Path
Temperature Sensor
Low Hot
Outdoor Unit HEX Outdoor
Vapor Valve
Temperature Sensor
Unit HEX
Temperature
Sensor
Upper Hot
Vapor Valve
Upper Outdoor EEV
Low Outdoor
EEV Receiver
Heatsink
*14,16HP have 2fans.
Pressure Sensor
Remarks
Pressure Switch
59
Indoor HEX EEV
Fan
Indoor Unit
Sub 4-Way Valve
High Pressure
Pressure Switch
Sensor
Main 4-Way
Valve
Low
Pressure Sensor
Oil Separator
Suction
Comp 1
Temperature
Discharge
Sensor
Temperatue Sensor
Receiver
Receiver
Outlet
Inverter
Accum Comp 1
Comp 1
Vapor
SC
Injection
Suction
Inlet
Oil Return
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
SC
EEV
Temperature Sensor Check Valve
SVC Valve EEV
Outdoor Units
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature Sensor
Solenoid Valve
Strainer
035
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