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Thread: Need help with Whalen wiring

  1. #1
    Junior Member

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    Need help with Whalen wiring

    Anyone ever wired Nest to 1970s Whalen fan coil unit? 120v 4 wire Heat+Cool loads and 2 speed fan (G1 G3). I know it's possible was just wondering if anyone has directions or perhaps done it?

  2. #2
    Administrator

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    Take a look at this thread for some general information on this subject

    https://www.thermostatforums.com/sho...t=line+voltage

  3. #3
    Junior Member

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    Quote Originally Posted by Thermostat View Post
    Take a look at this thread for some general information on this subject



    https://www.thermostatforums.com/sho...t=line+voltage
    Thanks. I already know how to wire it for low voltage with relays etc. I am just not sure how to rewire the unit internals to take anything but analog RAB20 tstat

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