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C W
Y
RH G
n
n
Multi-stage Heat and Multi-stage Cool
The CT32 can handle up to 2 stages of HEAT and 2 stages of COOL.
STEP 1 - Connect the W, W2 wires to the W terminals.
This connects the stages of HEAT.
STEP 2 - Connect the Y and Y2 wires to the Y terminals.
This connects the stages of COOL.
STEP 3 - Connect the RH or R wire to the RH terminal.
This connects the power.
STEP 4 - Connect the G wire to the G terminal.
This connects the fan.
STEP 5 - Connect the C wire to the C terminal.
Your HVAC system is now connected to the CT32.
Please Go To Page 6
5 Wire Heat Pump (heat/cool) without Auxiliary Heat
STEP 1 - Connect O wire to the O terminal or B wire to the B. This connects the change-over valve.
If you have both O and B - connect only the O wire to the O terminal and DO NOT connect
B to B terminal (see wire reference under Trane for B wire terminal).
STEP 2 - Connect the Y wire to Y terminal. This connects the compressor.
STEP 3 - Connect the R wire to RH. This connects the power.
STEP 4 - Connect the G wire to the G. This connects the fan.
STEP 5 - Connect the C wire to the C terminal.
Your HVAC system is now connected to the CT32.
Please Go To Page 6
HVAC SYSTEM
W
C
W
Y Y
2
2
POWER
C B O W W
Y Y
R
RC G A
2
2
H
THERMOSTAT TERMINALS
HVAC SYSTEM
C
B O Y
POWER
or
or
C B O W W
Y Y
R
2
2
H
THERMOSTAT TERMINALS
R
G
R
G
RC G A
15
PG
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