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    rr man's Avatar
    rr man Posts: 92, Reputation: 1
    Junior Member
     
    #1

    Jun 26, 2008, 09:42 AM
    Wiring for Honeywell TH5220D1003, set on cool, but blows heat.
    I have a 2 1/2 ton Goodman self contained heat pump with a heat strip which was set up with a Janitrol HPT 18-60 thermostat. I replaced that with a Honeywell TH5220D1003 thermostat. The Janitrol was wired:
    Y= yellow
    G= green
    R= red
    O= white
    E= blue (also jumpered to W2)
    C=no wire


    I wired up the new Honeywell:
    Y= yellow
    G= green
    R= red (also jumpered to Rc)
    O/B= white
    B = blue

    I have the thermostat set on cool and the compressor runs, but it blows out heat instead of cool. Did I miswire it? Any suggestions will be greatly appreciated.
    bluedorn's Avatar
    bluedorn Posts: 5, Reputation: 1
    New Member
     
    #2

    Jun 26, 2008, 02:16 PM
    the tstat you have has terminals of Rc, R, W (O/B), W2 (AUX), Y, Y2 (E), G, L, C (the items in () are for heat pump.

    old tstat = new tstat
    Y(yellow) = Y
    G(green) = G
    R(red) = R (also jumped to Rc)
    O(white) = O/B
    E(blue) = E (also jumpered to AUX if you want aux heat, E is for emerg heat)
    C is just the common, and doesn't need to be there
    rr man's Avatar
    rr man Posts: 92, Reputation: 1
    Junior Member
     
    #3

    Jun 26, 2008, 06:35 PM
    Quote Originally Posted by bluedorn
    the tstat you have has terminals of Rc, R, W (O/B), W2 (AUX), Y, Y2 (E), G, L, C (the items in () are for heat pump.

    old tstat = new tstat
    Y(yellow) = Y
    G(green) = G
    R(red) = R (also jumped to Rc)
    O(white) = O/B
    E(blue) = E (also jumpered to AUX if you want aux heat, E is for emerg heat)
    C is just the common, and doesnt need to be there
    This is exactly the way I have it wired, except I don't have E jumpered to AUX, and I do have a heat strip so guess I need to do that also. However, it still blows heat, even though I have it set on cool. In my original post where I said B = blue, it should have read
    E = blue. What could I have done wrong?

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