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-   -   Wire a honeywell thermostate RTH221B (https://www.askmehelpdesk.com/showthread.php?t=215619)

  • May 13, 2008, 01:59 PM
    artown
    Wire a honeywell thermostate RTH221B
    I am trying to wire this into an RV My wire are 7.5 V-red, cool Yellow, Fur White, Fan Blue, Ground Green Where do these go on the honeywell.
    Thanks
    Allen
  • May 13, 2008, 04:30 PM
    hvac1000
    It is a 24 volt thermostat. Take that project off your to do list because it will not work on 7.5 volts.

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