15 Installer Guide
2 Wire, 1 Stage Gas Heat
Residential Gas or Millivolt units
W GAS OR ELECTRIC HEAT
R POWER
J1= not used
J2 = GAS/ELEC
J3 = not used
Dual Transformer 5 Wire, 1 Stage Cool,
1 Stage Heat
Residential Gas or Electric Heat, Electric
Cool, split systems & package units
HEATING SYSTEM
RH* POWER HEAT
W GAS OR ELECTRIC HEAT
G FAN
COOLING SYSTEM
Y COMPRESSOR
RC* POWER COOL
J1 = GAS (for gas heat)
or
J1 = ELEC (for electric heat)
J2 = GAS/ELEC
J3 = not used
*Remove the factory installed jumper
between RC and RH
Sample Wiring Diagrams PSP1100
Conventional Heating and Cooling Systems and
Heat Pump Systems with no Aux Heat