C wire question

Discussion in 'HVAC Heating & Cooling' started by dgosssigep, Feb 22, 2012.

  1. dgosssigep

    dgosssigep New Member

    Feb 22, 2012
    Thompsons Station, TN
    I have a Ruud and a Rheem system that I am adding new thermostats to. The Ruud was very easy to add the C wire to. I just found the blue wire on each end, connected it to the C terminal and I was done. On the Rheem, I am not sure as to which terminal I am supposed to use. When looking at the diagram, it goes as follows: C - C - X - R - Y - G - W. I thought originally that the X wire was the answer, but when I tapped into that wire, it did not work. Also, the diagram shows that the brown wire is supposed to be plugged into the second C terminal, but when I opened it, the brown was plugged into the first C (the first one on the right). Could anyone give me direction as to how to proceed? Any help would be greatly appreciated!! Untitled2.jpg Untitled.jpg
Similar Threads: wire question
Forum Title Date
HVAC Heating & Cooling Thermostat Connon wire question Oct 14, 2012
HVAC Heating & Cooling I absolutely need to use a common wire to install my Nest...which is the common? Dec 7, 2016
HVAC Heating & Cooling Another adding the C wire thread (to WiFi thermostat) Jul 6, 2016
HVAC Heating & Cooling Wiring diagram for furnace relay & thermostat common wire May 26, 2016
HVAC Heating & Cooling Help with adding common wire (with wiring diagram) Jan 10, 2016

Share This Page