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
Tag: Honeywell Thermostat Wiring
Honeywell Thermostat Wiring Instructions
The most “meaty” part of following the wiring instructions for a new Honeywell thermostat, is correctly connecting it to the HVAC system. One useful feature about these t-stats, is that they generally use the same wire labeling as their older models. Today’s WiFi t-stats still use the R, Rx, C, W, Y1, Y2, et al … Continue reading Honeywell Thermostat Wiring Instructions
Honeywell Thermostat 4 Wire Wiring Diagram
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