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    lowrider137's Avatar
    lowrider137 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 22, 2008, 02:28 AM
    Honeywell 3100a Wiring Prob.
    Replacing old Baystat240A with new honeywell 3100A. Can anyone help me with the wiring.
    Old Baystat Color Code
    R-Red
    T-Tan
    O-Orange
    G-Green
    Y-Yellow
    X2-Black
    B- Bl
    U and W are jumped with White wire

    New Honeywell 3100A
    E-
    Aux-
    Y-
    G-
    O-
    L-
    R-
    B-
    C- has on it Optional with Battery
    can you tell me what wires go from baystat to new honeywell
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 22, 2008, 04:47 AM
    First check the resources available posted here at the beginning of this board under sticky notes. There is much thermostat wiring info there.

    I have no direct wiring change over for a Baystat so you might have to trace the wiring back to the unit to se where it goes.

    Honeywell has a toll free number for you to call for help.
    It is located on the papers that came with your nre thermostat.
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