Honeywell Thermostat Wiring Color Code

With so many new functions appearing on today’s modern thermostats, there is of course, many more wires to connect up nowadays, when installing a new or replacement thermostat.  Gone are the two-wire days, when all you needed was one wire from the furnace transformer, and the other to feed power to a gas valve or … Continue reading Honeywell Thermostat Wiring Color Code



Honeywell Smart Thermostat Wiring Instructions RTH9580WF

The most “meaty” part of instaling a new thermostat, is correctly wiring it up.  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.  Today’s smart thermostats still use the R, Rx, C, W, Y1, Y2, et al wires in the same … Continue reading Honeywell Smart Thermostat Wiring Instructions RTH9580WF