Help-NFPA 90A/90B Air Handler Install Clearances

Discussion in 'HVAC Heating & Cooling' started by oreyes, Oct 19, 2008.

  1. oreyes

    oreyes New Member

    Messages:
    14
    Location:
    Connecticut
    This thread is related to my previous post. Trying to find minimum acceptable clearances for air handler install. Am wondering whether my unit should even hed been instaleld where it is. Mine is in the peak of the attic on a cape and its insanely tight. Had issue that caused drain pipe to be pushed out of slope and to crack and leak. Please help. Thanks.
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    I think the first authority would be the install instructions for your specific units. It should contain any minimum clearances, and most code invoke manufacturer's instructions as the first spec.
  3. oreyes

    oreyes New Member

    Messages:
    14
    Location:
    Connecticut
    This is a Lennox unit - I'll check the manual again - the manual referred me to the Standards cited and to local codes. Thanks for the input.
  4. tedfrk

    tedfrk New Member

    Messages:
    16
    Location:
    New Jersey
    is it just an air handler or are you using it with the electric heat kit ?i would assume the tolerances would be different.
  5. oreyes

    oreyes New Member

    Messages:
    14
    Location:
    Connecticut
    Just an air handler. thanks.
  6. Mikebarone

    Mikebarone DIY Senior Member

    Messages:
    206
    Location:
    Phoenix, AZ
    Your air handler

    I shot you a reply on your first post, (be it good or bad). LOL.


    Mike

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