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  1. #1
    Join Date
    Apr 2008
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    McKinney Texas
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    501

    Default Why would a supply vent be routed back to the return side? See photo

    OREP Insurance

  2. #2
    Join Date
    Mar 2008
    Location
    Charlotte NC
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    2,304

    Default Re: Why would a supply vent be routed back to the return side? See photo

    This is a method used to do two things, depends on what they were after when they did it. One is to reduce the supply duct pressure and the other is to increase the sensible heat at the registers.

    It is often done when a system is zoned to reduce the noise at the registers when one zone is dampered off.

    Last edited by Vern Heiler; 10-13-2016 at 08:13 AM. Reason: More info
    The beatings will continue until morale has improved. mgt.

  3. #3
    Join Date
    Mar 2007
    Location
    New Mexico
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    1,352

    Default Re: Why would a supply vent be routed back to the return side? See photo

    Vern is on it. It usually shows up when there are zoned forced air systems, with dampers to open and close multiple zones. A bypass system for when not all of the dampers are open.

    Jim Robinson
    New Mexico, USA

  4. #4
    Join Date
    Apr 2008
    Location
    McKinney Texas
    Posts
    501

    Default Re: Why would a supply vent be routed back to the return side? See photo

    Thanks Jim and Vern. Now...after 3 cups of coffee, I finally understand! I had my head screwed on backwards !

    Appreciate you explanations !


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