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

    Jan 28, 2009, 06:34 AM
    Gas Heater Control Board swap, pin mystery
    I have a Nordyne Model #C3BA-036C-A Heating Unit and a 624631-B Control Board. I am swapping out the Control Board with a Honeywell S9200U1000 Universal Integrated Control Board. The only problem is that there is a Blue wire coming from the Motor Plug and going to pin M1 on the Nordyne Board and I don't know where on the Honeywell board to plug it in. Any idea?? Thanks, Scott...
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Jan 28, 2009, 10:05 AM
    Put it on one of the park tabs. I believe it is a extra speed wire for the blower motor. That is if you have already got the cool and heat terminals connected.


    http://customer.honeywell.com/techli...it/69-2075.pdf

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