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    Duane_P Posts: 2, Reputation: 1
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    Jan 3, 2010, 08:42 AM
    Replacing Coleman therm with Honeywell RTH8500
    I would like to replace my Coleman thermostat with the Honeywell RTH8500, and would like some help with the wiring. My system is a Coleman heat/cool heat pump, with a control box mounted on the oil furnace (emergency heat). The wires on the existing Coleman thermostat are: E blank, G green, B black, O orange, Y yellow, R red, X blue, L brown, W2 white. The wires on the Honeywell RTH8500 are: L, E, AUX, RC, R, O/B, Y, G, C.
    Any assistance would be greatly appreciated!

    Thanks,
    Duane

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