Sorry, i meant 23.4.4.2.4 not 23.4.4.2.3
Benjamin Young On Thu, Feb 8, 2024 at 12:23 PM Ben Young <[email protected]> wrote: > In the 2016 edition, check out sections 23.4.4.2.3 and 23.4.4.2.5 > > Use those to add phantom flow based on the minimum flow from 12 sprinklers. > > It's a variation on the theme but it should satisfy the ahj. > > > Benjamin Young > > > On Thu, Feb 8, 2024 at 11:55 AM Matt Grise <[email protected]> wrote: > >> We are looking at an auto repair facility that has a very small tire >> storage room (apx 300sf). The tire storage space is open on one side to the >> misc parts storage area (short-shelf OH2). Our thought was to protect the >> tire storage space with a small ESFR system that extends 15' into the misc >> parts storage area. The other 3 sides of the tire storage room are CMU and >> extend to the deck. >> >> Even with the 15' extension into the lesser hazard area, there are only 6 >> ESFR sprinklers needed. (2 heads on 3 lines) = 540sf. >> >> Based on the annex commentary in NFPA 13 2016 A11.1.2, our plan was to >> calc the 6 esfr heads (the full higher-hazard area plus 15' = 540sf) along >> with 960sf at .2gpm/sf to round out the larger of the two operating areas. >> >> >> We received some pushback because there is no ESFR design criteria that >> only uses 6 heads, so the plan reviewer was concerned that we were not >> following the 12-head design for an ESFR system. >> >> There was a suggestion that we should pretend there were 12 heads and >> calc a 12 head area (even though 6 would never be installed).I figured that >> since we were calculating ALL of the ESFR heads in the building, that would >> be ok. >> >> Has anyone seen anything like this before? Any thoughts? >> >> Thanks! >> >> Matt Grise >> >> >> >> _________________________________________________________ >> SprinklerForum mailing list: >> >> https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org >> To unsubscribe send an email to >> [email protected] > >
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