CT200-G1 User Guide
Wiring Diagrams
3 Wire Heat
for GAS MILLIVOLT or 24VAC systems.
1. Connect the R (or RH) wire to the RH terminal (Heat Power).
2. Connect the W wire to the W terminal (Heat).
3. If available, connect the C wire to the C terminal.
Fig. 4: Three wire HVAC system
4 Wire Heat
for systems with HEAT with FAN.
1. Connect the R (or RH) wire to the RH terminal (Heat Power).
2. Connect the W wire to the W terminal (Heat).
3. Connect the G wire to the G terminal (Fan).
4. If available, connect the C wire to the C terminal.
Fig. 5: Four wire HVAC system
5 Wire Heat/Cool
for systems with HEAT and COOL and shared power.
1. Connect the W wire to the W terminal (Heat).
2. Connect the Y wire to the Y terminal (Cooling compressor).
3. Connect the RH or R wire to the RH terminal (Power).
4. Connect the G wire to the G terminal (Fan).
5. If available, connect the C wire to the C terminal.
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Chapter 1. Installation Guide
Summary of Contents for CT200-G1
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