Honeywell Thermostat Diagram Wiring

But here is a list of the most common wire color mappings as seen in many four wire t stat setups.

Honeywell thermostat diagram wiring. The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. C 24 vac common you might see blue purple or brown typically used for this wire. In our case our new honeywell rth9580wf t stat has identically spaced holes to our old thermostat. Electrical wiring question replacing honeywell t6160 room stat mains 3 wire with horstmann drt2 battery operated 2 wire.

Honeywell thermostat wiring diagram 4 wire examples. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. May 05 honeywell smart thermostat wiring instructions rthwf the most meaty part of instaling a new thermostat is correctly wiring it up. It s there so you can supply power to the heating and cooling switches with a single wire which is usually red.

Make sure you have holes in the wall that line up with the holes in the new wall plate. At left the thermostat wiring diagram illustrates use of a honeywell t87f thermostat in a 3 wire application as a spdt single pole double throw switch such as used to control low voltage motors electric radiator valves zone valves. One useful feature about honeywell smart thermostats is that they generally support the same wire labeling conventions and hookup techniques as their older less intelligent counterparts. You ll probably see a thermostat jumper wire connecting the rc and rh terminals.

3 wire spdt honeywell t87f thermostat wiring diagram. More about replacing honeywell thermostat. Electrical wiring for a honeywell thermostat.