Re: Power Cycle

[Bob La Londe <none@none.com99>]

On 3/27/2021 6:08 AM, ABLE1 wrote:
> On 3/26/2021 11:13 PM, RTS wrote:
>> 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
>
> Ok, so this was more of a warehouse or industrial environment
> than what I was thinking a residential.
>
> Yes, live and learn.
>
> Don't know if I mentioned it here but I recently had a customer
> with a 100,000 sqft warehouse decided since the previous tenant
> moved out it would be a "good idea" to power wash the entire
> building from the top down.  Fortunately no dispatch of the trucks
> just a LOT of troubles.  Turned the system OFF for about 5 days!!
>
> It has since been decided it was NOT a good idea!!
>
>
> Les

A cooling plant in Mexico pressure washed the whole place... filled
every single Pelco PTZ Spectra Dome with water.  In 15ish years of
installing them I never had one installed outdoors suffer from water
damage.  Inside they managed to fill five of them.

Customer said, they are under the 5 year warranty right? (Maybe it was 3
year I forget.)  I said, if Pelco fixes them under warranty I'll even
pay the shipping.  I never charged them for the shipping, but I did
charge them a pretty penny for pressurized Spectra domes to replace the
original regular outdoor PTZs when Pelco laughed at me for asking.

Interestingly none of the fixed cameras (also in outdoor housings)
suffered any water damage, but you could tell they had been attacked.
They blasted the paint off of two of them and blew several of them out
of position.

That was an interesting place.  They saved several thousand dollars
running all the wire themselves, then paid me more than twice the
savings to come in and fix it all.  I told them it would have been less
work (time) for me to just install it than it was for me to locate all
the buggery.


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