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Outdoor Unit Functions
Due to our policy of continuous product innovation, some specifications may change without notification.
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ARUM144BTE5/DTE5, 168BTE5/DTE5, 192BTE5/DTE5, 216BTE5/DTE5, 241BTE5/DTE5
REFRIGERANT FLOW DIAGRAMS
Heat Recovery Operation — Lower Heat Exchanger Defrost
Heat Recovery – Lower HEX Defrost Operation
s s
s
s
s
s
s
s
s
M
M
Fan
Motor
Outdoor
Temperature
Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor
Unit HEX
Temperature
Sensor
4-Way Valve 2
High Pressure
Sensor
4-Way Valve 1
Suction
Temperature
Sensor
Receiver
Receiver
Outlet
Low
Pressure Sensor
Oil
Balance
Oil
Balance
Comp 1
Discharge
Temperatue Sensor
Comp 2
Discharge
Temperatue Sensor
Oil Separator Oil Separator
Liquid Pipe
Temperature Sensor
Low Pressure Vapor Pipe
High Pressure Vapor Pipe
Liquid Pipe
Inverter
Comp 1
Inverter
Comp 2
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
SC
EEV
Accum
Pressure Switch
Receiver
Inlet
SC
Suction
Oil Return
Heatsink
Active Path
Valve
Comp 1 Vapor
Injection
Comp 2 Vapor
Injection
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
SVC Valve
Check Valve
EEV
Solenoid Valve
Strainer
s
s
s
s
s
s
s
s
s
s
s
s
s
HR unit
EEV
Indoor Unit
Indoor HEX
Fan
EEV
Indoor Unit
Indoor HEX
Fan
EEV
Indoor Unit
Indoor HEX
Fan
EEV
Indoor Unit
Indoor HEX
Fan
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Lower Outdoor
EEV
Lower Hot
Vapor Valve
Upper Hot
Vapor Valve
Upper Outdoor
EEV Close
Close
Close
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