Installer Guide 16
Sample Wiring Diagrams PSP2100
Heat Pump Systems
4 Wire, 1 Stage Cool, 1 Stage Heat
Heat Pump with O reversing valve
Residential Heat Pumps, split systems &
package units, with no auxiliary heat
R POWER
Y COMPRESSOR
G FAN
O REVERSING VALVE
5 Wire, 1 Stage Cool, 1 Stage Heat
Heat Pump with O reversing valve
and Auxiliary Heat
Residential Heat Pumps, split systems &
package units, with auxiliary heat
R POWER
Y COMPRESSOR
W AUXILIARY HEAT
G FAN
O REVERSING VALVE
4 Wire, 1 Stage Cool, 1 Stage Heat
Heat Pump with B reversing valve
Residential Heat Pumps, split systems &
package units, with no auxiliary heat
R POWER
Y COMPRESSOR
G FAN
B REVERSING VALVE
5 Wire, 1 Stage Cool, 2 Stage Heat
Heat Pump with B reversing valve
and Auxiliary Heat
Residential Heat Pumps, split systems &
package units, with auxiliary heat
R POWER
Y COMPRESSOR
W AUXILIARY HEAT
G FAN
B REVERSING VALVE