I Imagine when that thing kicks on, it disables the AC / Heat HVAC system until the fire alarm is reset and the fan turns off? PS, whats with the long delay before the fan kicked on after the fire alarm went off? I wanna say it was about 2 to 2 1/2 min before the fan kicked on.
No it has no tie to the HVAC system as that system provides heating and cooling to spaces that the smoke control system has nothing to do with. The delay is not that long but is necessary to have a delay to give enough time for make up air doors to fully open otherwise they would be overcome by the negative pressure and would not be able to open. I have a video explaining this system
The delay was probably 30 seconds. If you watch when the camera inside the exhaust fan area shows the louvers opening, as soon as they open, you can briefly hear the motor kick on just before he goes back to his phone or whatever camera he's holding when he's waiting for them to start. It seemed that long because he was using two cameras and splicing the footage together.
@@nics-systems-electric Got a mission for you. Try to obtain enough fog machines or a big enough one. It would be pretty cool but I fully understand that something like can't easily be done and might not be doable at all
@NIC'S - SYSTEMS & ELECTRIC these types of systems are sure to exceed fire codes. i do think they should install the pressurized fans in kitchen's too because that's where fire's are also common
They are required due to the atrium being more than two floors, which are open to it. The normal kitchen doesn’t have anything, but the commercial kitchen does have fire suppression systems in place
