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-   -   A/C Return Air Calculations (https://www.askmehelpdesk.com/showthread.php?t=214602)

  • May 10, 2008, 05:20 PM
    rodneycwhitney
    A/C Return Air Calculations
    Can anyone provide the formula for calculating the return air register size on home a/c units. Thanks.
  • May 10, 2008, 06:07 PM
    hvac1000
    1 Attachment(s)
    Quote:
    Originally Posted by rodneycwhitney
    Can anyone provide the formula for calculating the return air register size on home a/c units. Thanks.
    THESE ARE OLD STANDARDS. They are generic in nature. A manual D is the proper way to determine duct/return air size. Use with caution.


    http://www.karg.com/PDF%20files/Pres...Wis%202003.pdf

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