Re: Power Cycle

[RTS <gafa@xxxxxxxxxxxxx>]

On 3/26/2021 4:58 PM, ABLE1 wrote:
> On 3/26/2021 4:28 PM, RTS wrote:
>> Â Â as best as I can remember, (an effort in it self)
>> the detectors were the old Ademco type with the off set
>> heat sensor wings at the smoke chamber..
>> (probability 10-15 years ago?  maybe more...)
>> All Photo's,  never have used the ions....
>
>
> So as I am trying to visualize this??  The Photo Smoke
> is mounted on the ceiling of ?drywall? that on the other
> side is this PVC bag wrapped insulation.  So the PVC bag
> gives off a gas a molecules that infiltrates the smoke
> through the wire or box penetration of the drywall ceiling
> sufficient enough to reflect enough infrared light in the
> sensing chamber to trip the detector.
>
> WOW!!!  So if you knew that it might happen and the code
> requires smokes to be installed you would have to fill up
> the penetration area with fire caulk to stop the infiltration
> of this nasty molecule??
>
> Or maybe run the other way!!!!  Scary!!  :-(
>
> Have a good weekend guys!!!
>
> Les
>
>
>

not quite as bad as that,  the smokes were mounted to
oxt (round) metal boxes connected by conduit, spaced as
required along the roof supports. (no sheet rock)
The PVC was mounted directly to the ceiling/roofing between
the roof supports..  Metal "chicken wire" was used to hold
the PVC against the metal roofing...
If you can imagine it,
smokes detector
metal box
mounting clamps
chicken wire
pvc insulation
metal roofing

Were talking 20-25 feet above concrete floor..
with an air gap of 1-2 inches at best....between
sensor input screens and pvc surface...
With maybe 6-9 inches gap between pvc and roofing...
No forced air flow, in ceiling area...
just crown venting of roof line...
Only saving grace was it was open area, with 6 large
drive through doors (3 on each side)..

Never had a problem during year only at summer..

;-)

RTS
--

*Rocky T. Squirrel, esq.*