54
MULTI V IV System Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.  
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Cooling Mode ARUB072BTE4 / 072DTE4, ARUB096BTE4 / 096DTE4,  
ARUB121BTE4 / 121DTE4
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
HR Unit
*8 ton and10 ton units have 2 fans
Accum 
Inverter 
Comp1 
Oil 
Separator 
Receiver 
Outdoor 
Temperature 
Sensor 
Outdoor Unit 
HEX Temperature 
Sensor 
Upper 
Hot Gas Valve 
Low 
Hot Gas Valve 
EEV
Upper
Low
Upper 
Outdoor 
EEV 
Sub-cooling Circuit 
Outlet Temperature 
Sensor  
Liquid Pipe  
Temperature  
Sensor 
Comp 
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 
Receiver 
Outlet 
SC Suction 
Comp 
Vapor 
Injection 
Receiver 
inlet 
Sub-cooling 
Active Path 
High Temperature High Pressure Gas
High Temperature High Pressure Liquid
Low Temperature Low Pressure Gas
Charging Port 
Liquid Pipe 
Low Pressure Gas Pipe 
High Pressure Gas Pipe 
Sub-cooling HEX
Fan
S
S
S
S
S
S
S
M
Fan
*
M
ss
Check Valve
EEV
Solenoid Valve
SVC Valve
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
Strainer
HEAT RECOVERY REFRIG. CIRCUIT