Sometimes this comes down to a building code requirement that the water flow alarm must indicate which floor level is flowing. Then there can all sorts of nuances that come into play that depends on exactly what types of sprinkle system components are installed at each floor level and what has been designed into the system to mitigate operational issues.
There is also one other aspect that could be going on with the proposed system piping for the floors above the ground floor. The sprinkler contractor might be trying to birdcage the design in which case it would be impossible to indicate flow per floor or isolate any part of the system. Birdcage is where the sprinkler piping branch lines rises vertically within the walls. Allan Seidel St. Louis, MO > On Apr 9, 2024, at 6:56 AM, [email protected] wrote: > > I have a 3 story older building being renovated with sprinkler system being > added. My question is can AHJ require a floor control valve to be added to > each floor. Plans only show 1 floor control valve for the first floor. 1st > floor being business, 2nd and 3rd floor being residential and attic space > being sprinklered also. Concern of freeze and break in attic on older > building and to be able to isolate a floor after a fire. > > > > Thanks > > Chris Jones, Fire Marshal > > Urbana Fire Division > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to [email protected]
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