Results 1 to 5 of 5
  1. #1
    Join Date
    Mar 2004
    Location
    eastern north carolina
    Posts
    80

    Question h20 piping wrong

    customer has about 35 air handling units that are piped backwards, chill
    water goes in on entering air side of the coil, what effect does this have on
    capacity & humidity control? from 5 to 40 hp.

  2. #2
    Join Date
    Dec 2003
    Location
    Half way between North pole and Equator
    Posts
    947
    10% reduction in capacity comes to mind, but you should probably contact the Sales Engineer that sold the job and ask him. Or ask the Manufact of equip.
    May not be an issue unless coils are marginally sized.

  3. #3
    Join Date
    Jun 2005
    Location
    Ohio
    Posts
    1,716
    One effect is a probable reduction in intended dehumidification capability.
    jogas

  4. #4
    Join Date
    Aug 2005
    Posts
    21
    Turbovac,
    what you are referring to is parallel flow which has a low LMTD, "less effiecient". Additional coil stress, chilled water meets hot air.
    Counter flow, High LMTD cold water meets cold air. Best practice.

    Jesaire

  5. #5
    Join Date
    Jul 2001
    Location
    VA
    Posts
    2,801
    Quote Originally Posted by turbovac View Post
    customer has about 35 air handling units that are piped backwards, chill
    water goes in on entering air side of the coil, what effect does this have on
    capacity & humidity control? from 5 to 40 hp.
    Doesnt matter, because it will be blamed for everything forever no matter what....lol Price up a fix.
    ___________________________________________


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event