12 Wire Thermostat Wiring Diagram

The thermostat wire is color coded so the technician can identity which wire goes to which port on each board.

12 wire thermostat wiring diagram. Check the wiring at your old thermostat to see if it has one or two R wires. Thermostat C-Wire is that extra cable providing extra power to the smart thermostat. 12v fuse box wiring diagram.

12 wire motor connection diagram. Two-wire thermostats typically have a red and a white wire. For example if the Red wire is connected to W on the thermostat the furnace should turn on.

Color of Wire and Termination. 12 pin wiring diagram. Furnace Thermostat Wiring Diagram Terminal Letters On a Thermostat and What They Control The Hot wire 24 volts usually Red from the transformer is the main power wire to turn on or off a furnace components.

Join our community of 625000 engineers. Insert the stripped harness wires into the thermostat terminals according to your wiring diagram. RedR power wire for your heating and cooling.

12 wire motor diagram. I show where the wires go at the thermostat the color code then down at the furnace control board. RC - Red Wire Power 24 Vac RH or 4 - Red Wire Jumpered Power 24 Vac W - White Wire For Heating Enable Y - Yellow Wire For Cooling Enable G - Green Wire Controls Fan ON-Auto The diagram shows how the wiring works.

If your current Thermostat does not have a 24V common wire there are some options available for compatibility visit. Your thermostat is a precise instrument Handle it with care All wiring must conform to local codes and ordinances This thermostat is designed for use with 4AA alkaline batteries andor 24-volt AC C wire or a 12- 24 AC or DC source or millivolt gas systems Each thermostat relay load should be limited to 1 0 amp. 50 2 Wire Thermostat Wiring Diagram Heat Only Ba6V Letteralima 2 Wire Thermostat Wiring Diagram Heat Only.