Results 1 to 9 of 9
  1. 08-27-2009, 05:39 PM #1
    scarr
    scarr is offline Professional Member
    Join Date
    Jul 2005
    Posts
    15

    Best duct design software

    elite or wrightsoft?
    Reply With Quote Reply With Quote
  2. 10-06-2010, 07:03 PM #2
    MSDCHVAC
    MSDCHVAC is offline New Guest
    Join Date
    Oct 2010
    Location
    Southern California
    Posts
    3
    Both work well for duct design, Elite allows for Manual D calculation without drawing the building out. Which works well, and saves time, if you are using autocad or another design software.
    Reply With Quote Reply With Quote
  3. 10-06-2010, 08:33 PM #3
    genduct
    genduct is offline Professional Member*
    Join Date
    Jun 2010
    Location
    Philadelphia PA
    Posts
    2,139
    If you really understand duct design/sizing you won't need software
    AND if you don't the software won't help because you really don't understand where the answer is coming from and therefore won't know when it is garbage in and garbage out.

    Just noticed the post date is this still alive?
    You have got to learn from other people's mistakes! Because God knows you don't live long enough to make them all yourself !!!!!!!!
    Reply With Quote Reply With Quote
  4. 10-06-2010, 08:57 PM #4
    MSDCHVAC
    MSDCHVAC is offline New Guest
    Join Date
    Oct 2010
    Location
    Southern California
    Posts
    3

    Duct Design

    I would agree to some extent. Most believe that ACCA Manual D is a duct sizing procedure. This is only partialy correct, Duct sizing is a by-product of Manual D. Known CFM, velocity and material allows a ductulator to size ducts. This is not the focus of Manual D calculation.
    Reply With Quote Reply With Quote
  5. 10-27-2010, 12:54 AM #5
    building solutions
    building solutions is offline Professional Member
    Join Date
    Feb 2004
    Location
    NC
    Posts
    134
    Hands down - Elite RHVAC has a resident plugin called Manual D Ductsizer. It's a brillant add on based on "real" pressure drops. If you try it, you will quickly find out that the longest critical path is not always the one with the largest pressure drop.
    Reply With Quote Reply With Quote
  6. 10-27-2010, 01:25 AM #6
    seatonheating
    seatonheating is offline Banned
    Join Date
    Oct 2003
    Location
    Washington
    Posts
    7,405
    Quote Originally Posted by building solutions View Post
    Hands down - Elite RHVAC has a resident plugin called Manual D Ductsizer. It's a brillant add on based on "real" pressure drops. If you try it, you will quickly find out that the longest critical path is not always the one with the largest pressure drop.


    Explain?
    Reply With Quote Reply With Quote
  7. 10-27-2010, 09:15 PM #7
    building solutions
    building solutions is offline Professional Member
    Join Date
    Feb 2004
    Location
    NC
    Posts
    134
    Manual D is based on assumptions. If your design does not follow those assumptions, you must apply correction factors found in the duct tables. Elite Manual D Duct sizer calculates the corrected pressure drop and EL based on your real design velocities.
    Reply With Quote Reply With Quote
  8. 10-28-2010, 10:01 AM #8
    genduct
    genduct is offline Professional Member*
    Join Date
    Jun 2010
    Location
    Philadelphia PA
    Posts
    2,139
    Agreed, using real velocities and C factors will give you a more scientific answer than the crude Equivalent. Lengths. This might be great for a large commercial design but the simplicity and the fudge factor inherent in D will compensate for residential job site, installer creativity.
    If the techs out there would just understand the fundamentals, many of the air related problems could be reduced
    You have got to learn from other people's mistakes! Because God knows you don't live long enough to make them all yourself !!!!!!!!
    Reply With Quote Reply With Quote
  9. 02-19-2012, 12:15 AM #9
    Vinster
    Vinster is offline Professional Member
    Join Date
    Feb 2008
    Posts
    120
    how is revit
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules