Installer Guide 14
5 Sample Wiring Diagrams
Sample Wiring Diagrams PSP1100
Conventional Heating and Cooling Systems and
Heat Pump Systems with no Aux Heat
4 Wire, 1 Stage Cool, 1 Stage Heat
Residential Gas or Electric Heat, Electric
Cool, split systems & package units
Y COMPRESSOR
W GAS OR ELECTRIC HEAT
G FAN
R POWER
J1 = GAS
J2 = GAS/ELEC
J3 = not used
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
Y COMPRESSOR
G FAN
R POWER
B REVERSING VALVE
J1 = ELEC
J2 = HP
J3 = B
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
Y COMPRESSOR
G FAN
R POWER
O REVERSING VALVE
J1 = ELEC
J2 = HP
J3 = O
3 Wire, 1 Stage Heat
Residential Gas or Electric Heat units
with a separately controlled fan
W GAS OR ELECTRIC HEAT
G FAN
R POWER
J1 = GAS (for gas heat)
or
J1 = ELEC (for electric heat)
J2 = GAS/ELEC
J3 = not used