LG Multi IV Engineering Manual page 85

Balanced
Simul. Operation
Indoor HEX
Fan
Indoor HEX
Fan
Indoor HEX
Fan
Indoor HEX
Fan
Outdoor
Temperature
M
Sensor
Outdoor unit
HEX Temperature
Sensor
Low
Hot Vapor Valve
Upper
Hot Vapor Valve
Upper
Low
Outdoor
Outdoor
EEV
EEV
Sub-cooling Circuit
Outlet Temperature
Sensor
*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.
Press u re Sensor
Remarks
Pressure Switch
REFRIGERANT FLOW DIAGRAMS
EEV
Indoor Unit
EEV
Indoor Unit
EEV
Indoor Unit
EEV
Indoor Unit
Fan
M
High Pressure
Pressure
Sensor
Switch
Active path
4-Way Valve
SC suction
Suction
Temperature
Separ
Sensor
-ator
Low
Pressure
Comp1
Discharge
Sensor
Temperature
Accum
Sensor
Receiver Oil
Receiver
Balance
outlet
Oil Return
Receiver
inlet
Sub-Cooling HEX
Sub-cooling Circuit
inlet Temperature
Sensor
Sub-Cooling
Temperature Sensor
SVC Valve
©
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
Low Temperature Low Pressure Vapor
High Pressure Vapor Pipe
Low Pressure Vapor Pipe
Liquid Pipe
Liquid Pipe
Temperature
Sensor
Oil Oil
Separ
Comp1 Comp2
-ator
Vapor Vapor
Injection Injection
Comp2
Discharge
Temperature
Sensor
Inverter Inverter
Comp1 Comp2
Chec k Valve
EEV
Heat Recovery Unit
s
s
s
s
s
s
s
s
s
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.
Sole noid Valve
Strainer
PRODUCT DATA | 85