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  1. #1
    Al Roden's Avatar
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    Default Smoke Detectors Inside HVAC Returns

    Is there an easy was to determine if this smoke detector is specifically listed for installation inside a return air chase?

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    Last edited by Al Roden; 08-20-2013 at 12:39 PM.
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  2. #2
    Join Date
    Mar 2007
    Location
    Columbus GA
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    Default Re: Smoke Detectors Inside HVAC Returns

    Quote Originally Posted by Al Roden View Post
    Is there an easy was to determine if this smoke detector is specifically listed for installation inside a return air chase?
    That is not a smoke detector, it is a siren for an alarm system.
    Should not be in the ducts.
    I think this is the siren in the picture.
    http://intellahome.com/alarmpdfs/wave2.pdf

    Plastic smokes when burned.
    Even duct mounted smoke detectors are mounted outside the ducts and have a sampling tube going into the duct.

    Last edited by Rick Cantrell; 08-20-2013 at 11:34 PM.
    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
    Join Date
    Mar 2012
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    Lansdale, PA
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    876

    Default Re: Smoke Detectors Inside HVAC Returns

    Quote Originally Posted by Al Roden View Post
    Is there an easy was to determine if this smoke detector is specifically listed for installation inside a return air chase?
    It does appear to be a siren. I assume it is right next to a return-air grille. I see no harm in having it there, unless is interferes with the volume of the alarm, or the manufacturer does not permit it.


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