[SML] Smoke, heat, fire sensors for HVAC systems

[Richard Niederberg]

Why can't they install a 'push to silence alarm' switch on the wall and
have a crew member keep their thumb on it during the effect or have a
device that only detects heat rise?
/s/ Richard

On Mon, Jan 25, 2021 at 10:57 AM Dale Farmer via Stagecraft <
stagecraft at theatrical.net> wrote:

> I was peripherally involved with getting such a system working many
> years ago.  It involved getting a fire engineer study of the building
> and alarm systems.  The eventual outcome was that the sensors in the air
> ducts and auditorium were able to be selectively disabled, and we had to
> hire a fireman on detail duty to be on site whenever they were disabled.
>
> One kind of smoke detector is beams of light up near the ceiling shining
> across the room to a detector on the opposite wall. They detect balloons
> just fine. surprise!
>
> Dale
>
>
> On 1/25/2021 1:21 PM, Ben Thoron SML via Stagecraft wrote:
> > Our 10-year-old theatre was installed with sensors in the HVAC system
> > that are easily set off by theatrical smoke and haze, to the extent
> > that we can’t use either, at all.
> >
> > I’m looking for a source that knows more about the options and devices
> > than I do.
> >
> > Any suggestions?
> >
> >
> >
> > Ben
> >
> >
> >
> > Ben Thoron | Production Manager | the old globe | 619-684-4105 direct
> > | 619- 846-9529 cell | he him his | bthoron at theoldglobe.org
> >
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>
>
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-- 
/s/ Richard
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