LG MULTI V 5 Manual Book page 20

Multi V 5
3. Piping Diagrams
3.2 18 / 20 / 22 / 24 / 26HP (2 Comp)
18 / 20 / 22 / 24 / 26HP (2 Comp)
3.2.1 Heat Recovery System
Heat Recovery System
■ Cooling Operation Cooling Operation
Indoor HEX EEV
Fan
Indoor Unit
Indoor HEX EEV
Fan
Indoor Unit
EEV
Indoor HEX
Fan
Indoor Unit
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
Comp 1
Temperature
Sensor
Discharge
Sensor
Upper Hot
Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
Upper Outdoor EEV
Comp 1 Vapor
Injection
Low Outdoor
Receiver SC
EEV
Inlet Suction
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
038
_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
HR unit
Pressure Switch
O S l r a p r o t O e S a a r t
Comp 2
Discharge
Temperatue Sensor
Oil Oil
Inverter Inverter
Balance Balance
Comp 1 Comp 2
Comp 2 Vapor
Injection
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature Sensor
SC
EEV
Check Valve Solenoid Valve
EEV Strainer
Multi V 5
3. Piping Diagrams
■ Heating Operation
Heating Operation
Indoor HEX EEV
Fan
Indoor Unit
Indoor HEX EEV
Fan
Indoor Unit
Indoor HEX EEV
Fan
Indoor Unit
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
Receiver
EEV
Inlet
Heatsink
Pressure Sensor
Remarks
Pressure Switch
63
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Sub 4-Way Valve
High Pressure
Pressure Switch
Sensor
Main 4-Way
Valve
Low
Pressure Sensor
O S l i p e a r a r o t O S l i p e a r a r o t
Suction
Comp 1
Temperature
Comp 2
Discharge
Sensor
Discharge
Temperatue Sensor
Temperatue Sensor
Receiver
Receiver
Outlet
Oil Oil
Inverter Inverter
Balance Balance
Accum Comp 1 Comp 2
Comp 1 Vapor Comp 2 Vapor
Injection Injection
SC
Suction
Oil Return
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Liquid Pipe
Sub-Cooling Circuit Inlet
Temperature Sensor
Temperature Sensor
SC
EEV
Check Valve
Temperature Sensor
SVC Valve EEV
Outdoor Units
HR unit
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Solenoid Valve
Strainer
039
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