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    Mar 27, 2013, 11:36 AM
    trane thermostat weathertron to honeywell rht7400d wiring
    I see this question asked several times but no answer. Please help me with the wiring. I need the conversion chart on these thermostats from Trane Weathertron to the Honeywell RTH7400D.

    I have 5 wires with no match. Trane letters are O, X-2, T, B and W.

    Honeywell open spaces are C, G, Y, O-B, RC, AU, E and L.

    Help!

    Thank you

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