Radio Thermostat CT80 Install Manual page 14

Step-by-step wiring diagrams
3 Wire Heat GAS MILLIVOLT or 24VAC system
STEP 1 - Connect the R (or RH) wire to the RH terminal.
This connects the heat power.
STEP 2 - Connect the W wire to the W terminal.
This connects the heat.
STEP 3 - Connect the C wire to the C terminal.
Your heater is now connected to the CT80.
Please Go To Page 6
4 Wire Heat
STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power.
STEP 2 - Connect the W wire to the W terminal.
This connects the heat.
STEP 3 - Connect the G wire to the G terminal on the
thermostat. This connects the fan.
STEP 4 - Connect the C wire to the C terminal.
Your system is now connected to the CT80.
Please Go To Page 6
POWER
C H B O W W2 W3 Y Y2 RH RC G A DH EX
THERMOSTAT TERMINALS
HVAC SYSTEM
C
POWER
C H B O W W2 W3 Y Y2 RH RC G A DH EX
THERMOSTAT TERMINALS
HVAC SYSTEM
C W R
R R
C and H
connected
W R G
R
R
C and H
connected
14 14
PG PG