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  1. #1

    Confused Airflow in York upright gas furnace is reverse

    Inspected a York furnace today. 80,000 BTU gas-fired with model P3DNA12n06401B.

    The evaporator coil is underneath the unit and airflow through the duct system is reversed. The return ductwork attaches to the top of the unit and air blows through coming out of the supply ducts at the bottom of the system. I have never seen this before.

    I can't determine if the unit is rated for this.

    Any ideas?

    Michael C-S
    Atlanta
    Home Inspector

  2. #2
    Join Date
    Apr 2001
    Location
    Western PA
    Posts
    1,801
    I thought home inspectors were the experts?







    That felt good.
    Jason

  3. #3
    Join Date
    Apr 2001
    Location
    Western PA
    Posts
    1,801
    Google just gives this thread and some parts on Ebay! I think the D in the model number denotes downflow, in which case this application is ok. Hopefully a York or Luxair expert will tell us.
    Some, but not all furnaces can be installed this way.
    Jason

  4. #4
    Join Date
    May 2006
    Posts
    325

    Talking

    you got to hand it to the man at least he asked
    many would just pass it and be gone

    Quote Originally Posted by bja105 View Post
    I thought home inspectors were the experts?







    That felt good.

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,755
    Quote Originally Posted by michaelc-s View Post
    Inspected a York furnace today. 80,000 BTU gas-fired with model P3DNA12n06401B.

    The evaporator coil is underneath the unit and airflow through the duct system is reversed. The return ductwork attaches to the top of the unit and air blows through coming out of the supply ducts at the bottom of the system. I have never seen this before.

    I can't determine if the unit is rated for this.

    Any ideas?

    Michael C-S
    Atlanta
    Home Inspector
    Thats a down flow 64,000 BTU output 3 ton drive furnace. So the evap coil should be under it, with the air flowing/blowing down to the coil.
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    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  6. #6
    Join Date
    Feb 2004
    Location
    Midwest
    Posts
    9,919
    Quote Originally Posted by pctech View Post
    you got to hand it to the man at least he asked
    many would just pass it and be gone
    Always good to make sure, especially if it's a New York in Atlanta.

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