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    CCD1970's Avatar
    CCD1970 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Apr 11, 2008, 08:18 PM
    Rewiring Honeywell T841A1423
    Son-in-Law took out the old Honeywell T841A1423 thermostat for a 2.5 ton split airconditioner/heat pump and installed a Hunter 44110 before leaving for Iraq. Hunter 44110 worked on heating but not on cooling. Have that figured out, but need to reinstall the original Honeywell T841A1423. Problem is I don't know where all the wires go.

    Coming out of the wall are six color codes wires.
    Yellow
    White
    Red
    Green
    Orange
    Brown

    I figure that:
    G - green wire post
    R - red wire post
    E - no idea
    L - no idea
    X - no idea,W2 - White but there is also a W1
    B - brown post
    Y1 -yellow post
    O - orange post

    Question: This is a single phase heat pump unit. Do I just reconnect the white wire to W1 or to W2. There was no E to W2 jumper. Sincerely appreciate any help you can give.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Apr 12, 2008, 06:57 PM
    See here

    http://customer.honeywell.com/techli.../69-1217ef.pdf


    Another look here

    http://customer.honeywell.com/techli...0s/69-0452.pdf
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