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Thread: direct vent?

  1. #1
    Ron Bishop's Avatar
    Ron Bishop Guest

    Default direct vent?

    This indoor air handler is located in a hall closet. I did not notice any combustion air supply, but 2 PVC vents were present. I am assuming that one of them is for supply air, and that this is a direct vent system. Any thoughts?

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  2. #2
    Join Date
    Feb 2008
    Location
    Chicago IL
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    1,940

    Default Re: direct vent?

    Ron, were you able to locate the two pipes on the outside of the building? If so you can turn the unit on to see if exhaust comes out of one of the pipes. Anytime they put a unit in a closet it needs exterior combustion air for the heat side. Some municipalities will let it go if the closet has a full louvered door. By the way you say it's an air handler, so is it only providing cooling and heat is supplied by a boiler?
    The other issue I see from the photo is that the 90's are DWV fittings. Ok for combustion but not generally accepted for venting. Are you sure it's not poor plumbing venting?
    Good luck, Markus

    www.aic-chicago.com
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  3. #3
    Ron Bishop's Avatar
    Ron Bishop Guest

    Default Re: direct vent?

    Excuse me...this is a split system, with the AC unit outsde.


  4. #4
    Join Date
    Mar 2007
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    Philadelphia PA
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    3,177

    Default Re: direct vent?

    Quote Originally Posted by Ron Bishop View Post
    Excuse me...this is a split system, with the AC unit outsde.
    I think Markus was referring to the fact that you didn't mention a furnace. There is a gas furnace there, right? Not just an air handler.


  5. #5
    Join Date
    Feb 2008
    Location
    Chicago IL
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    1,940

    Default Re: direct vent?

    Correct, John

    www.aic-chicago.com
    773/844-4AIC
    "The Code is not a ceiling to reach but a floor to work up from"

  6. #6
    Ron Bishop's Avatar
    Ron Bishop Guest

    Default Re: direct vent?

    A furnace is present.


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