LG Multi V 5 - Page 25

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_TROUBLE SHOOTING GUIDE BOOK _
Multi V 5
3. Piping Diagrams
74
Outdoor Units
 Upper HEX Defrost Operation









t
t
EEV
Indoor Unit
Indoor HEX
Fan
EEV
Indoor Unit
Indoor HEX
Fan
t
t
Fan
Motor
Outdoor
Temperature
Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor
Unit HEX
Temperature
Sensor
Low Hot
Vapor Valve
Sub 4-Way Valve
High Pressure
Sensor
Main 4-Way
Valve
Suction
Temperature
Sensor
Receiver
Receiver
Outlet
Low
Pressure Sensor
Comp 1
Discharge
Temperatue Sensor
Comp 2
Discharge
Temperatue Sensor
rotarapeSGl iOrotarapeSGl iO
Liquid Pipe
Temperature Sensor
Low Pressure Vapor Pipe
High / Low Pressure Vapor Pipe
Liquid Pipe
Inverter
Comp 1
Oil
Balance
Oil
Balance
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
SC
EEV
Accum
Pressure Switch
Upper Hot
Vapor Valve
Upper Outdoor EEV
Low Outdoor
EEV
Receiver
Inlet
SC
Suction
Oil Return
Heatsink
Active
Path
Comp 1 Vapor
Injection
Inverter
Comp 2
Comp 2 Vapor
Injection
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
SVC Valve
Check Valve
EEV
Solenoid Valve
Strainer
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
3. Piping Diagrams
73
Multi V 5
Outdoor Units
 Oil Return/ Defrost Operation









tt
EEV
Indoor Unit
Indoor HEX
Fan
EEV
Indoor Unit
Indoor HEX
Fan
t
t
Fan
Motor
Outdoor
Temperature
Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor
Unit HEX
Temperature
Sensor
Low Hot
Vapor Valve
Sub 4-Way Valve
High Pressure
Sensor
Main 4-Way
Valve
Suction
Temperature
Sensor
Receiver
Receiver
Outlet
Low
Pressure Sensor
Comp 1
Discharge
Temperatue Sensor
Comp 2
Discharge
Temperatue Sensor
rotarapeSGl iOrotarapeSGl iO
Liquid Pipe
Temperature Sensor
Low Pressure Vapor Pipe
High / Low Pressure Vapor Pipe
Liquid Pipe
p
jGX
Oil
Balance
Oil
Balance
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
SC
EEV
Accum
Pressure Switch
Upper Hot
Vapor Valve
Upper Outdoor EEV
Low Outdoor
EEV
Receiver
Inlet
SC
Suction
Oil Return
Heatsink
Active
Path
Comp 1 Vapor
Injection
Inverter
Comp 2
Comp 2 Vapor
Injection
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
SVC Valve
Check Valve
EEV
Solenoid Valve
Strainer
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
■ Upper HEX Defrost Operation■ Oil Return/ Defrost Operation
Basic Part
Multi V 5
Intorduction
Trouble Shooting
Function Control
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