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-   -   Honeywell thermostat heat pump wiring? For RTH6450 (https://www.askmehelpdesk.com/showthread.php?t=543490)

  • Jan 12, 2011, 09:51 PM
    brodel
    Honeywell thermostat heat pump wiring? For RTH6450
    The old thermostat was Ritemp brand I have 7 wires black, white, {grey marked C} orange, yellow, red, and a light blue.

    Can you assist me with a wiring diagram.

    Thanks
    Vince

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