LG Multi IV - Page 86

86 | PRODUCT DATA
MULTI V IV Outdoor Unit Engineering Manual
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Operation
REFRIGERANT FLOW DIAGRAMS
$58%%7('7($58%%7('7(
$58%%7('7($58%%7('7(+HDW5HFRYHU\
ARUB145BTE4/145DTE4,
ARUB169BTE4/169DTE4
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
ARUB144BTE4/144DTE4,
ARUB168BTE4/168DTE4
single frame models.
Indoor HEX
Fan
Indoor Unit
EEV
Indoor HEX
Fan
Indoor Unit
EEV
Indoor HEX
Fan
Indoor Unit
EEV
Indoor HEX
Fan
Indoor Unit
EEV
s
s
s
s
s
s
s
s
s
s
s
s
s
Heat Recovery Unit
Accum
Receiver
Outdoor
Temperature
Sensor
Outdoor unit
HEX Temperature
Sensor
Upper
Hot Vapor Valve
Low
Hot Vapor Valve
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
Active path
Fan
Sub-Cooling HEX
Liquid Pipe
Inverter
Comp2
Inverter
Comp1
Oil
Separ
-ator
Oil
Separ
-ator
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
Low Temperature Low Pressure Vapor
MM
s
s
s
s
s
s
s
s
s
s
s
s
s
Accum
Receiver
Sub-Cooling HEX
Liquid Pipe
Inverter
Comp2
Inverter
Comp1
Oil
Separ
-ator
Oil
Separ
-ator
Low Pressure Vapor Pipe
High Pressure Vapor Pipe
EEV
Low
ss
Check Valve
EEV
Solenoid Valve
SVC Valve
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
Strainer
*8 ton and 10 ton units have 2 fans.
**Active path: The refrigerant circuit(s) of an outdoor unit coil that provide(s) continuous heating capacity during split coil defrost operation.
Outdoor