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  1. #1
    Join Date
    Mar 2005
    Location
    Cary, NC
    Posts
    10

    Humidifier wiring

    Our Aprilaire humidifier was reinstalled on our new dual fuel system. I've been told that it can be wired to come on 3 ways. One is with the fan, two is with the hp, and three is with the gas. I don't want to energize it with the fan because I want to leave the fan (vspeed) on to circ the air for our 3 levels to even out temps even tho we have 3 zones now. The hp is what I'll use the most in the NC, so I had the humidifier wired to that.

    Is this the way it is? I'd rather have the humidifier come on with a call for heat.

    System is trane vspeed fan, hp and gas, honeywell tz4 zone board.

    Thanks

    Perry

  2. #2
    Join Date
    Apr 2007
    Location
    Philadelphia
    Posts
    2,193
    i really dont understand the question... is it a question??

  3. #3
    Join Date
    Aug 2004
    Location
    Minnesota
    Posts
    349
    there's nothing wrong with hooking it up in sync with the continuous fan. When the humidistat is satisfied the humidifier valve will de-energize.
    White Bear Township, Minnesota
    www.summitheating.com

  4. #4
    Join Date
    Sep 2002
    Location
    I don't know
    Posts
    2,909
    Don't have it wired to run with continuous fan; it will waste a lot of water, as room temperature air doesn't pick up much moisture.

    Indoor humidity is inversly proportional to outdoor temperature (dewpoint, technically); you will require the most humidification when the heatpump can not longer keep up.

    With proper draft proofing and direct vent appliances, it is possible to get away without a humidifier. Search my user name + keyword "humidifier" for more info.

  5. #5
    Join Date
    Nov 2007
    Location
    St. Louis, Mo
    Posts
    28
    most furnaces have a board with HUM terminals that bring on the Humidifier with the gas furnace. That would be the easy way of doing it

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