Three Wire Thermostat Wiring Diagram. Image 889669 715 kb. It shows the parts of the circuit as simplified shapes and the power and signal connections between the tools.
This wire will go to the g terminal on your new thermostat. If you have a c wire place it into the c terminal on your wall plate. In some cases one of those wires may be your common.
2 wire thermostat wiring diagram heat only wiring diagram is a simplified pleasing pictorial representation of an electrical circuit.
White rodgers 3 wire zone valve wiring diagram. According to earlier the traces in a honeywell thermostat wiring diagram 3 wire signifies wires. The difference between 2 wire and 3 wire thermometer is the g or green wire that is usually used for fans. Nest e wiring diagram collection 40 unique 2 wire nest thermostat installation guide.