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Thread: RTU smokie

  1. #1

    RTU smokie

    Reefer guy here but saw this and it interested me. The first 2 pics are one unit and the second 2 pics are another unit. That PVC goes to a smoke detector inside the blower compartments and, as you can see, the pipe terminates at the drains. There is an additional smoke detector in the blower areas that are tubed the way I'm used to seeing them. What is being accomplished here??
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  2. #2
    Join Date
    Dec 2002
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    SouthEast NC ICW & Piedmont Foothills
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    7,635
    never seen that done before

    no clue what they thought they were accomplishing
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  3. #3
    Join Date
    Jun 2006
    Location
    New Jersey
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    4,340
    Waterless condensate trap?

    Sent from my C771 using Tapatalk 2

  4. #4
    Join Date
    Jun 2012
    Location
    Lynchburg, VA
    Posts
    22
    In the first two pictures, the lines connected on the back side of the unit aren't even serving as a drain.

    I've got no ideas except for the installer had extra PVC and didn't know what to do with it - or it's a means to equalize the pressure in the condensate line to eliminate a trap.

  5. #5
    Join Date
    Sep 2007
    Location
    NH
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    1,191
    Looks like a plumber installed it.

  6. #6
    Join Date
    Apr 2012
    Location
    winnipeg
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    1,330
    I have never sen such a thing.....
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  7. #7
    Dern, was hoping this was some kind of new thing, or some plausible explanation.

  8. #8
    Join Date
    Jun 2006
    Location
    New Jersey
    Posts
    4,340
    Waterless traps.....
    http://www.trenttech.com/product_overview.html

    Sent from my C771 using Tapatalk 2

  9. #9
    Join Date
    Oct 2001
    Posts
    6,966
    on a 100F day and a bird lands on top of the PVC riser pipes...snap the manufacturers spend millions of dollars keeping units weather tight. if any PVC is on the negative side of that supply fan they are going to suck rain water into the ducts... the typical trap is right below the fan access panel or coming out from the below that OA hood..that is a power exhaust for sure...maybe that's the piping show needed
    "when in doubt...jump it out" http://www.youtube.com/watch?v=U1qEZHhJubY

  10. #10
    Join Date
    Jun 2012
    Location
    Lynchburg, VA
    Posts
    22
    Nice find ascj

  11. #11
    Join Date
    Feb 2012
    Location
    New Jersey
    Posts
    26
    that is crazy i have never seen anything like that and honestly never saw or heard of that before

  12. #12
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    I see it now & again. I never knew why they were set up this way

    Sent from my HTC Sensation 4G using Tapatalk 2

  13. #13
    Thanks, ascj

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