PG
14
PG
15
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 - STEP 5 - 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 CT101.
Please Go To Page 6
4 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 CT101.
Please Go To Page 6
C O
or
B AUX
n
Y
n
RH G
Multi-stage Heat Pump with Multi-stage
HVAC SYSTEM
THERMOSTAT TERMINALS
C B O W W
2
Y Y
2
R
H
RC G A
POWE
R
W
Y Y
2
G
R
C
W
2
HVAC SYSTEM
THERMOSTAT TERMINALS
C B O W W
2
Y Y
2
R
H
RC G A
POWE
R
B
O Y
G
R
C
or
or
