PG
15
W Y RH G
WIRES
4 Wire Heat/Cool
STEP 1 - Connect the W wire to the W terminal. This connects the heat.
STEP 2 - Connect the Y wire to the Y terminal.
This connects the cooling compressor.
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 on the thermostat. This
connects the fan.
STEP 5 - Optional - Connect the C wire to the C terminal.
Your HVAC system is now connected to the CT110.
Please Go To Page 6
W Y RH RC G
WIRES
5 Wire HEAT/Cool
STEP 1 - Connect the W wire to the W terminal. This connects the heat.
STEP 2 - Connect the Y wire to the Y terminal. This connects to the
cooling compressor.
STEP 3 - Disconnect the Rc and Rh terminals by removing Rc-Rh jumper
wire.
STEP 4 - Connect the RH wire to the RH and the RC wire to the RC
terminals. This connects power.
STEP 5 - Connect the G wire to the G terminal. This connects the fan.
STEP 6 - Optional - Connect the C wire from the HEAT to the C terminal.
Your HVAC system is now connected to the CT110.
Please Go To Page 6
HVAC SYSTEM
Y
R
C
W
G
THERMOSTAT TERMINAL
HVAC SYSTEM
THERMOSTAT TERMINALS
*R
C and
R
H
disconnected
W
Y
R
H
G
C
R
C