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  1. #1
    Join Date
    Apr 2005
    Posts
    22

    Trane touch screen Tstat.

    I have a Trane Tcont802as32daa touch screen Tstat. It is the same as my honeywell Th8320(pro 8000). My problem is that Trane uses terminals R, Rc,O,Y,G, B, / Y2,F, X2,W1,S1,S2.
    My qustion is that there is no C for common. which terminal does Trane use for common?
    Also, what do they use F and X2 for?
    Thanks for any help,
    David

  2. #2
    Join Date
    Nov 2004
    Location
    NJ
    Posts
    1,204
    B is common
    Fault is for a fault light
    X2 is the signal from outside during defrost to tell the aux heat to run.
    Ed J

  3. #3
    Join Date
    Apr 2005
    Posts
    22
    Thanks

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