s
s
s
s
s
s
s
M
M
SC
EEV
EEV
Indoor Unit Indoor Unit
Indoor HEX
EEV
Indoor HEX
Fan
Fan
Outdoor
Sensor
Outdoor Unit HEX
Temperature
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX
Temperature Sensor
Low Hot
Temperature Sensor
Vapor Valve
High Pressure
Sensor
4-Way Valve 2
Suction
4-Way Valve 1
Sensor
Receiver
Temperature
Receiver
Outlet
Low
Pressure Sensor
Comp
Discharge
Oil Separator
Temperatue Sensor
Liquid Pipe
Not Used
Temperature Sensor
Vapor Pipe
Liquid Pipe
Inverter
Comp
Sub-Cooling Circuit
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Outlet Temperature Sensor
Accum
Pressure Switch
Temperature Sensor
Upper Hot
Upper Outdoor EEV
Low Outdoor
Vapor Valve
EEV
Receiver
Inlet
SC
Suction
Oil Return
Heatsink
Active Path
Comp Vapor
Valve
Injection
Pressure Sensor
Pressure Switch
Remarks
Temperature Sensor
SVC Valve EEV
Check Valve
Strainer
Solenoid Valve
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
Bypass EEV
Bypass Temp
M
M
Fan
*
have 1 fan
8, 10, 12HP unit
Motor
CompComp
DomeDome
SensorSensor
T
mperature Temperautre
5. Piping Diagrams