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    Chisan11 Posts: 1, Reputation: 1
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    Nov 25, 2012, 04:04 PM
    Wiring help for Honeywell rth7400D
    I just bought a new Honeywell programmable thermostat. The wires on the wall don't match the wires on the unit.
    Coming out of the wall, I have G, Y, W, O, B, RH. I don't have a heat pump, but I do have a trolatherm on my forced air system.

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