In my opinion you're going to have to stick to manufacturer listing for these. I don't know of any type of exception. Fortunately they're only 4.2K factor so chances are, if this is a 13 system, your pendants will more than likely still be the driving factor depending on spacing and layout - even though they're only four in the design area.
On Mon, Mar 14, 2016 at 3:39 PM, Brad Casterline <[email protected]> wrote: > Ed, > > I think the only thing special about a COIN-type sprinkler is that, if > spaced (and calc'd) correctly the patterns will overlap in a shallow depth. > So if I were King, or better yet an AHJ, I would accept room design. > > Brad > On Mar 14, 2016 5:25 PM, "Ed Kramer" <[email protected]> wrote: > > > Working on a project where listed combustible concealed space sprinklers > > (such as Viking COIN) are required. Data sheets call for a design area > of > > 1,000 sf. However, the combustible concealed spaces on several floors of > > this motel are compartmented into areas of approx 345 sf via 1-hour rated > > walls. A 1,000 sf design area would include up to 8 sprinklers, > whereas a > > design area of (1) 1-hour rated compartment would include only 3 > > sprinklers. I'd love to use the room design method and calc only 3 > > sprinklers, but since these are specially listed sprinklers and the > listing > > calls for 1,000 sf, I don't believe I'm allowed to do that. Anybody else > > run into this or have an opinion? > > > > > > > > Ed Kramer > > > > Bamford Fire Sprinkler > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
