
PG
16
Aux Heat
The CT101 can handle up to 2 stages of Pump compression and 2 stages of AUX 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 AUX 1, AUX 2, to the AUX 1 and 2 respectively. This
connects the auxiliary heat.
STEP 3 - Connect the Y and Y2 wires to the Y terminals.
This connects the compressor.
STEP 4 - Connect the R wire to RH terminal. This connects the power.
STEP 5 - Connect the G wire to G terminal. This connects the fan.
STEP 6 - Connect the C wire to the C terminal.
Your HVAC system is now connected to the CT101.
Please Go To Page 6
Accessory Wiring -
Zoned Hot Water Heat -
For Solenoid valve or Motor valve connect the wires based on
diagrams below to the correct terminal on the CT101. USE ONLY
IN HEAT MODE. The third wire on your valve may be called 6, Y,
or G (see page 18). As always the CT101 must be powered by
24vac
HVAC SYSTEM
THERMOSTAT TERMINALS
C B O W W
2
Y Y
2
R
H
RC G A
POWE
R
B
G
R
Y Y
2
C
O
or
or
AUX1 AUX2
SOLENOID VALVE
W
AR
H
CT101
MOTOR VALVE
W
RH A
CT101
FOR
R 3WIRE ZONED
HOT WATER
W
R
A
W
R
A