Radio Thermostat CT102, User Manual

Page: 19 / 56

Wiring Diagrams
Installation Guide CT102
19
Step-By-Step Wiring Diagrams
3 Wire Heat GAS MILLIVOLT or 24VAC
System
1. Connect the R (or RH) wire to the
RH terminal. This connects the
heat power.
2. Connect the W wire to the W
terminal. This connects the heat.
3. Connect the C wire to the C
terminal. Your HVAC system is now connected to the CT102.
4. Go to “Connect Your Wires” on page X.
4 Wire Heat
1. Connect the R (or RH) wire to the
RH terminal. This connects the
heat power.
2. Connect the W wire to the W
terminal. This connects the heat.
3. Connect the G wire to the G
terminal. This connects the fan.
4. Connect the C wire to the C terminal. Your HVAC system is now
connected to the CT102.
5. Go to “Connect Your Wires” on page X.
5 Wire Heat/Cool
1. Connect the W wire to the W
terminal. This connects the heat.
2. Connect the Y wire to the Y
terminal. This connects the
cooling compressor.
3. Connect the RH or R wire to the
RH terminal. This connects the
power.
4. Connect the G wire to the G terminal. This connects the fan.
5. Connect the C wire to the C terminal. Your HVAC system is now
connected to the CT102.
6. Go to “Connect Your Wires” on page X.
POWER
HVAC SYSTEM
THERMOSTAT
C B O W Y Y
2
R
H
RC G A W
2
W R C
POWER
HVAC SYSTEM
THERMOSTAT
C B O W Y Y
2
R
H
RC G A W
2
W R C G
POWER
HVAC SYSTEM
THERMOSTAT TERMINALS
C B O W Y Y
2
R
H
RC G A W
2
W R C G Y