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    stanleyd's Avatar
    stanleyd Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Feb 20, 2010, 03:31 PM
    Trane Thermostat wiring Issue
    Existing Trane has:
    R
    T
    O
    G
    Y
    X2
    B
    and U with soldered wire to W which is jumpered to X2
    and Black wire is not attached

    How do I wire or connect to Hunter Model 44860?
    bernie1951's Avatar
    bernie1951 Posts: 12, Reputation: 1
    New Member
    		  
    #2

    Feb 20, 2010, 03:48 PM

    Do you have the diagram for the new thermostat?
    stanleyd's Avatar
    stanleyd Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Feb 21, 2010, 12:15 PM
    yes - for heat pump system which I have it shows
    RC/R = 24VAC
    c = 24VAC Common
    Y1 Compressor stage 1
    Y2 Compressor stage 2
    W2 = Auxiliart Heat and maybe jumpered with E = Emergency Heat
    O = Reversing Valve Cool
    B = Reversing Valve Heat
    G = Fan Control
    L = System Monitor
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