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    postman822's Avatar
    postman822 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 1, 2011, 08:10 AM
    Rth7500d?
    I have a RTH7500 on a Payne Heat Pump.
    My wiring scheme is as follows:
    Red - R - 24VAC Hot
    Yellow - Y/Y2 - Coll/Heat Stage 1
    Green - G - Fan
    Blue - C - Common
    White - W/W1 - Heat Stage 2

    What will make the fan run:
    Closing between R and G?
    Or Closing between G and C?
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #2

    May 1, 2011, 08:15 AM

    R-G powers the indoor fan circuit.
    Seann's Avatar
    Seann Posts: 32, Reputation: 1
    Junior Member
    		  
    #3

    May 2, 2011, 09:27 AM
    R and G will let your fan run
    Are you sure it's a heat pump
    Where is the reversing valve.
    Recheck the wiring
    Its can be 2 stage EFA + AC (heta strips in same unit)
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