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booster fan

Gene_8 Member Posts: 5
hook up booster fan to a variable speed furnance


  • Brad White_203
    Brad White_203 Member Posts: 506
    No see-um

  • Mitch_4
    Mitch_4 Member Posts: 955
    it was posted in general questions earlier

    his EAC terminal is always powered, and I do not know if he needs only for heat (therefore using the HUM term) or not.

    Several questions were posted, but I heard nothing.
  • John Mills_4
    John Mills_4 Member Posts: 43
    EAC terminal

    is powered when blower is on for any reason. I wouldn't hook booster up directly but use a 120V coil relay to interface.
  • Empire_2
    Empire_2 Member Posts: 2,343
    @ words to make it simple

    Adjustable pressure switch, easy as pie.::) It's a simple form of controlling your in line booster fan and can be adjusted to either a positive (preferred) or negative actuation. Even on your lowest VAr. speed, you can initiate the fan to come on at will. I assume this in a very long run and has been a problem from day one?.....

    Mike T.....

    PS Hey Brad? I'd been away for a while,....Keep bringing your insite!
This discussion has been closed.