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  1. #14
    Join Date
    Mar 2003
    Location
    Brooklyn, Ohio
    Posts
    102
    It sounds like you might have a bypass somewhere in the piping. Can you check the suction and discharge of the pump and look up the curve? I would also want to know what pressure drop is reguired across the barrel.

  2. #15
    Join Date
    May 2001
    Location
    Western Wa
    Posts
    1,757
    I'd start with cleaning the strainers at the pump and in the tower.

    You should be able to get within 6-8 degrees of wet bulb.

    Maybe there's a tower by pass for minimum temp, and it's not modulating.
    God Bless the USA

  3. #16
    Join Date
    Oct 2007
    Location
    california
    Posts
    57
    Might also want to check if tower has modulating dampner on fan..is it open?

  4. #17
    Join Date
    Jan 2008
    Location
    pennsylvania
    Posts
    120
    Quote Originally Posted by air2spare View Post
    not really. is there a method for measuring GPM w/o a flow meter?
    GPM2 equals GPM1 times square root (deltaP2 divided by deltaP1)

    gpm1 equals design
    gpm2 equals actual
    delta p1 equals design pressure drop
    delta p2 equals actual pressure drop

  5. #18
    Join Date
    Jan 2008
    Location
    windy city
    Posts
    4,400
    don't forget to also check the spray heads and trees for blockage. and if you're growing algae, you may have other bacteria thriving - i.e. legionella - be careful!!!!!!!!!!

  6. #19
    Join Date
    Sep 2005
    Location
    Texas
    Posts
    2,793
    Quote Originally Posted by txhvac View Post
    What kind of tower do you have? Is water going over the top of the tower? Or maybe running through a bypass? Hot deck plugged up? 110*h20 pretty darn hot. Not to sound like an a$$ but is the fan going the right direction?
    lol, funny you mentioned that. it was one of the things I checked when I looked at the tower.

  7. #20
    Join Date
    Oct 2001
    Posts
    6,855
    what is the brand of tower and model...your looping tower return water with towering entering to the chiller someplace.the tower will only do its 10F as you have typically.
    "when in doubt...jump it out" http://www.youtube.com/watch?v=Px5YcOeQB4I

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