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Honeywell humidifier 400a

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vanderstreek
vanderstreek Member Posts: 1
in Indoor-Air Quality

Just purchased a Honeywell humidifier 400a and looking for some help wiring it. I attached a picture of information in instructions manual along with everything I have. Any help is appreciated

IMG_0324.jpeg

Comments

  • mattmia2
    mattmia2 Member Posts: 15,651

    what are you connecting it to? there are several ways to wire it depending on what you are connecting it to and how you want it to operate. in most cases you don't need the included transformer

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,640

    @vanderstreek Best bet would be to watch a U tube video on this humidifier then come back here if you get stuck and someone can help you out.

  • ratio
    ratio Member Posts: 4,176

    Looks like a bypass humidifier. It'll mount on a hole you cut in the side of the return duct (the suck side of the furnace) & the round part connects to the supply side of the furnace (the blow side) through pipe & fittings you supply. It must be mounted the way it's shown, it can't go on it's side or underneath the duct.

    It'll need water from somewhere, and a drain (that can be sent into a condensate pump if you have one).

    As for wiring it, there's a lot of information that's needed before that can be solved. The transformer will need to be fed with 120V line voltage (dangerous!), and the humidistat will need to be fed with 24V low voltage from the transformer (R & C, like to like). After that, we're stalled.

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