Your HVAC system is now connected to the thermostat.
Figure 11: Four-wire heat/cool
C B O W W2 Y Y2 RH RC G A
Thermostat
HVAC system
W
R
G
C
Y
Power
Five-wire heat/cool (C, W, Y, RH, RC, G)
1. Connect the W wire to the W terminal. This connects the heat.
2. Connect the Y wire to the Y terminal. This connects the compressor.
3. Disconnect the jumper between the RH and RC terminals.
4. Connect the RH wire to the RH terminal and the RC wire to the RC terminal.
This connects the power.
5. Connect the G wire to the G terminal. This connects the fan.
6. Set the HVAC Type switch to NORM and:
If you have gas or oil heat, set the Heat Type switch to GAS.
If you have electrical heat, set the Heat Type switch to ELEC.
Your HVAC system is now connected to the thermostat.
Figure 12: Five-wire heat/cool
C B O W W2 Y Y2 RH RC G A
Thermostat
HVAC system
W
RC
G
C
Y
RH
Power
Four-wire heat pump without AUX heat (C, B or O, Y, RH, G):
1. Connect the O wire to the O terminal or the B wire to the B terminal. This
connects the change-over valve. If you have both O and B, connect only the
P/N 1069510 • REV A • ISS 09NOV10
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