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-   -   How do I change out a ganeral controls t-99 thermostat to a digital. (https://www.askmehelpdesk.com/showthread.php?t=468065)

  • Apr 30, 2010, 10:42 AM
    tgeezy
    How do I change out a ganeral controls t-99 thermostat to a digital.
    I only 2 wires, a white or yellow and a black, what letters on my new thermostat should they be connected to. I only have a heating unit.
  • Apr 30, 2010, 11:05 AM
    Joshdta

    R and w
  • Apr 30, 2010, 04:54 PM
    tgeezy
    Quote:
    Originally Posted by Joshdta View Post
    r and w
    Thanks Joshdta a but my new thermostat only has the letters... E, AUX, Y, G, O, L, R, B, and C(optional).
  • Apr 30, 2010, 04:54 PM
    tgeezy
    Quote:
    Originally Posted by Joshdta View Post
    r and w
    Thanks Joshdta but my new thermostat only has the letters... E, AUX, Y, G, O, L, R, B, and C(optional).
  • Apr 30, 2010, 05:10 PM
    Joshdta

    R and e and you will have to put the new stat to emergency heat. As this is a heatpump stat

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