LG Multi IV - Page 68

68 | PRODUCT DATA
MULTI V IV Outdoor Unit Engineering Manual
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REFRIGERANT FLOW DIAGRAMS
8SSHU+(;'HIURVW
Operation
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Fan
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
Low Temperature Low Pressure Vapor
Accum
Receiver
Outdoor
Temperature
Sensor
Outdoor Unit
HEX Temperature
Sensor
Upper HEX
Hot Vapor Valve
Lower HEX
Hot Vapor Valve
Low
Outdoor
EEV
Upper
Outdoor
EEV
Sub-cooling Circuit
Outlet Temperature
Sensor
Liquid Pipe
Temperature
Sensor
Comp1
Discharge
Temperature
Sensor
Comp2
Discharge
Temperature
Sensor
Suction
Temperature
Sensor
Sub-cooling Circuit
Inlet Temperature
Sensor
Pressure
Switch
High Pressure
Sensor
4-Way Valve
Low
Pressure
Sensor
Oil Return
Oil
Balance
Receiver
Outlet
SC Suction
Comp1
Vapor
Injection
Comp2
Vapor
Injection
Receiver
Inlet
Sub-cooling
Liquid Pipe
Vapor Pipe
Charging Port
Sub-cooling HEX
Inverter
Comp2
Inverter
Comp1
Oil
Separ
-ator
Oil
Separ
-ator
M
Electronic
Expansion Valve
Fan
Indoor Heat Exchanger
M
Electronic
Expansion Valve
Fan
Indoor Heat Exchanger
MM
ss
Check Valve
EEV
Soleno id Valve
SVC Valve
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
Strainer
*8 ton and 10 ton units have 2 fans.
Active Path
**Active path: The refrigerant circuit(s) of an outdoor unit coil that provide(s) continuous heating capacity during split coil defrost operation.
ARUN145BTE4/145DTE4,
ARUN169BTE4/169DTE4
frames are ONLY for use in
large capacity triple frame
combinations. They cannot be
used as stand alone models
or in a dual frame combina-
tion. These frames ARE
NOT interchangeable with
ARUN144BTE4/144DTE4,
ARUN168BTE4/168DTE4
single frame models.