Is there a specific code requirement to keep the flow switch cover installed on the device?
It is good practice to keep it on, but is there a code requirement especially when running a 110V horn-strobe from the flow switch?
As always thanks!
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4/21/2022 07:39:01 am
The requirement for the waterflow switch that I know that might be relevant is that it has to be a listed assembly. Check the manufacturer spec sheet and/or the manufacturer's tech support on the switch with the horn strobe to see if it maintains its listing without said cover. If it does not, it is against code.
4/21/2022 08:06:01 am
4/21/2022 08:06:38 am
4/21/2022 08:10:27 am
4/21/2022 08:27:48 am
The short answer is no. As far as the sprinkler side goes it is no different than a ball valve in the water motor gong line. We put tamper seals on those lines so that if it is opened they would have to break the seal. The water flow switches covers have tamper resistant screws that act for the same reason. The NFPA 25 does cover the inspection of these devices and replacing missing covers and the instillation guides for the potter switches talk about only removing the cover for short amount of times.
4/21/2022 08:28:32 am
There are many more than just listed assembly I'm certain. I'd imagine the electrical codes are in play, specifically since you mentioned the 110vac bell. I would personally view that as physical damage to a waterflow device that would be noted quarterly per NFPA 25 as well.
4/21/2022 11:06:07 am
I asked the question, so first off thank you for those who responded. Matthew thank you for the insight to look at the electrical code. I have a NEC 2014 that I hadn't used since I took my NICET for fire alarm. I found the following code:
4/22/2022 08:29:21 am
Sometimes it is the general sections of the Code or NFPA that are the most helpful in these cases. As an AHJ, I would use NFPA 72 14.5.1 Maintenance to require the cover be installed on the flow switch. Our State Fire Marshal often uses this approach also.
5/11/2022 12:27:57 pm
For all listed and Labeled (anything), this is the fast one that our fire department uses.
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