Today’s thermostats have so many new functions. So there are many more wires to connect up when installing a new or replacement t-stat. Gone are the two-wire days. In those times, all you needed was one wire from the furnace transformer. Plus, you had another to feed power to a gas valve or relay to … Continue reading Honeywell Thermostat 4 Wire Wiring Diagram
Tag: Honeywell Thermostat Wiring Diagrams
Honeywell Thermostat Wiring Color Code
With so many new functions on today’s modern thermostats (t-stats), there is of course, many more wires to connect up. Gone are the two-wire days. Thus we need some soft of color code on the wires to keep all the functions straight. So here, we show examples of the Honeywell thermostat wiring color code for … Continue reading Honeywell Thermostat Wiring Color Code