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Table of Contents
Cooling at Low Ambient Temperatures
Indoor HEX
Indoor HEX
Indoor HEX
Indoor HEX
Outdoor
Temperature
Sensor
Outdoor unit
HEX Temperature
Sensor
Upper
Outdoor
EEV
*8 and 10 Ton units have 2 fans.
Press u re Sensor
Remarks
Pressure Sw itch
REFRIGERANT FLOW DIAGRAMS
EEV
Fan
Indoor Uni t
EEV
Fan
Indoor Uni t
EEV
Fan
Indoor Uni t
EEV
Fan
Indoor Uni t
*
Fan
Fan
M
M
High Pressure
S
Sensor
Active path
4-Way Valve
Low
SC suction
Suction
Hot Vapor Valve
S
Temperature
S
Sensor
S
Low
Pressure
Upper
Sensor
Hot Vapor Valve
Accum
Receiver
Receiver
outlet
Low
Outdoor
EEV
Oil Return
Sub-cooling Circuit
Outlet Temperature
Receiver
inlet
Sensor
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
Pressure
Switch
Low Pressure Vapor Pipe
Liquid Pipe
Comp
Temperature
Vapor
Sensor
Oil
Injection
Separator
Comp
Discharge
Temperature
Sensor
Inverter
Comp1
Check Valve
EEV
Heat Recovery Unit
s
s
s
s
s
s
s
s
s
Liquid Pipe
Solenoid Va lve
Strainer
PRODUCT DATA | 71

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