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  1. #14
    Join Date
    Mar 2010
    Location
    Tidewater Virginia
    Posts
    139
    Quote Originally Posted by davidj001 View Post
    and then the general contractor holds up your money just for spite
    Not if it's in the contract!

  2. #15
    Join Date
    Feb 2013
    Location
    north georiga
    Posts
    636
    Quote Originally Posted by bearfromobx View Post
    Not if it's in the contract!
    well i'm not the boss, but i know if you don't dance to the tune they play you won't get another job with them. i think thats b------t but thats how it seems to work

  3. #16
    Join Date
    May 2004
    Location
    Malden Mass
    Posts
    288
    In total agreement with viceman, it's my biggest pet peeve also!
    I have nothing better to do than go by a finished project and change air filters taped to return inlet.

  4. #17
    Join Date
    May 2004
    Location
    Malden Mass
    Posts
    288
    davidj001 is absolutely correct.
    When is the last time a developer paid for temporary heat?

  5. #18
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    1,888
    Many manufacturers say that their warranty is voided if the equipment is used for heating (or cooling) during construction. I agree completely in principle.

  6. #19
    Join Date
    Apr 2012
    Location
    Millsboro, DE
    Posts
    100
    So they finally cleaned the blowers, coils and blower compartments. Now I have two systems delivering about 15% less than rated flow (sum of outlets measured with Alnor LoFlo). Ducts are tight, and duct cleaner commented favorably on that (was able to pull -3" WC). Any thoughts!

  7. #20
    Join Date
    May 2004
    Location
    Malden Mass
    Posts
    288
    ferd1942, I would perform static pressure testing at the air handler on both supply and return to see where you are at. Did you double check your duct design, especially the trunk size?
    Hope this helps!
    Last edited by jdere; 05-23-2013 at 07:36 PM. Reason: correct spelling

  8. #21
    Join Date
    Apr 2012
    Location
    Millsboro, DE
    Posts
    100
    Only measured SP at HP-01, operating at +0.08"/-0.04" and delivering 285 CFM vs. 550 CFM Design.

    Mains are sized at 900 FPM supply and 700 FPM return, so I'd be real surprised if that was an issue (There is more to duct design than 0.10").

    Then there's HP-02 delivering 873 CFM on 03/16 without the floor diffusers in place, and 727 CFM on 05/13, with the floor diffusers and after being cleaned, as compared with an 820 CFM design.

    I'm wondering about the cleaning operation: The motors and blowers were taken out, disassembled, cleaned, reassembled and reinstalled; is there some way that could have changed things?

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