Typical4-wirethermostats will usered (R or Rc), white (W),yellow (Y), andgreen (G)wires; used for heat pumps, HVAC systems. Very common for Nest thermostats. Typical5-wirethermostats will usered (R or Rc or Rh), white (W, W1),yellow (Y, Y1),green (G), andblue C-wire; use...
Method 2: Look at the wires inside your furnace Disable power to your furnace and pop the cover off. (The ease of doing it this way will vary by furnace and installation.) Look for a row of screws labeled R, C, W, W2, G, Y/Y2, like so. Looking inside my 2010 Rheem gas furna...
If the thermostat has been removed, so you don’t know which wires were connected to which terminals, and you can’t or don’t feel comfortable getting into the furnace, this approach might work. It depends upon the original installer having used the traditional wiring color code to when in...
Not shown are the circuit returns such as RH (return for heat) and RC (return for cooling). According to some embodiments the thermostat can control a humidifier and/or de-humidifier. Further details relating to isolated FET drives 370 are described in co-pending U.S. patent application Ser...
A thermostat is described that includes a rechargeable battery, a graphical user interface and a wireless network communication capabilities. During installation, in cases where the rechargeable battery is below a first threshold, the installation procedure is limited so as to avoid energy intensive inst...