Honeywell 4 Wire Thermostat Wiring Color Code. The white wire connects to your heat. Our page top sketch courtesy of honeywell controls illustrates the wiring diagram for a traditional honeywell t87f thermostat used for 2 wire single pole single.
This wire connects to your heat pump if applicable. Mar 8 this post provides honeywell thermostat wiring color code gides and hints. There are a variety of thermostat wire types.
There are a variety of thermostat wire types.
It terminates in your outdoor condenser for reversing valve operation from hot to cold. There are a variety of thermostat wire types. There is no standard for which color wire controls each function. Well explained tutorial on wire color codes.
