Diagram For Thermostat Wire Colors. The colors of the wires that you connect to these terminals do not necessarily match the nominal terminal id. It doesnt control cooling and because its a mechanical thermostat it doesnt need power for internal functions so it has no c wire.
3 wire high limit honeywell t87f thermostat wiring diagram. The 2nd generation nest learning thermostat will use system match to recognize your system as a two stage heat pump if youve connected y1 y2 and ob wires. 3 wire spdt honeywell t87f thermostat wiring diagram.
The 2nd generation nest learning thermostat will use system match to recognize your system as a two stage heat pump if youve connected y1 y2 and ob wires.
Quick installation guide 4 1 loosen the locking screw at the bottom of the thermostat. U humidifier dehumidifier or. E is typically white and. The one side of the 240 volt will get attached directly to the wire in the heater.