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    kay21's Avatar
    kay21 Posts: 1, Reputation: 1
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    #1

    Mar 8, 2011, 11:45 PM
    Wiring honeywell rth6350D with heat pump system
    I'm trying to figure out how to wire a honeywell rth6350d thermostat with my heat pump system. I originally purchased a cheaper thermostat and had someone else install it without knowing that I had a heat pump system. The cheaper thermostat doesn't work with heat pump systems and all that happened would be air blowing - not hot or cold.

    Now I'm trying to figure out how to wire the new thermostat but don't know which wires go where. The original thermostat looks like it had wires at y, c, o, w2, g and r. (the terminals have been unscrewed compared to the others). The wires colors I have are red, orange, yellow, blue, orange and brown.

    How should I wire this?
    Thanks.
    vertex's Avatar
    vertex Posts: 1, Reputation: 1
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    #2

    Feb 13, 2012, 11:07 AM
    Switching from a Trane Weathertron 239 to a Honeywell 6350D. The Trane had eight (8) wires: black, white, red, orange, green, brown, yellow and light blue. Know where the red, white, yellow, green and orange go. Not sure about the black, brown and light blue. Any suggestions will be appreciated

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