Maybe an even better question given Ed’s original problem. I’m going to say no unless at that spacing it’s listed as QR.
On Thu, Feb 15, 2018 at 3:50 PM Roland Huggins <[email protected]> wrote: > I would apply then 2016 edition to the 2013 ed as CLARIFICATION. We added > to answer your question. It is NOT The thermal element. It is the listing > of the sprinkler in order to be QR. Keep in mind that it was only a cycle > or two ago where there was NO restriction on mixing thermal sensitivity for > new installations. Modifying an existing systems had a restriction but not > totally new (yea go figure). We added it but didn’t think about the EC > sprinkler having a fast response link but a SR rating (common at 20 X 20 > but also smaller areas for lower temp. ratings). > > Next question: Can I use said 20 x 20 spaced EC sprinkler in a light > hazard occupancy? > > Roland > > > Roland Huggins, PE - Senior VP Engineering > > American Fire Sprinkler Assn. > > Dallas, TX > > http://www.firesprinkler.org > > > Fire Sprinklers Saves Lives > > > > > On Feb 15, 2018, at 2:28 PM, Ed Kramer <[email protected]> wrote: > > Reference section 8.3.3.2 of the 2013 edition of NFPA 13: “Where QR > sprinklers are installed, all sprinklers within a compartment shall be > quick-response unless otherwise permitted in 8.3.3.3.” Section 8.3.3.3 > isn’t applicable for this question. > > I’m protecting an OH II sales area with EC sprinklers spaced (mostly) at > 18’x18’. This particular sprinkler is listed as SR at that spacing, but is > listed as QR for 14’x14’ and smaller spacing. This sales area has a small > 20 sf nook (not a separate compartment) that requires an additional > sprinkler. My intent is to protect that nook with a K5.6 sprinkler. > > Should the K5.6 sprinkler be SR or QR? > > The answer is probably SR since the EC sprinklers are installed at a > spacing that has a SR listing. But that would be mixing a > standard-response element with a fast-response element – something I’ve > been led to believe is not cool. > > The 2016 flavor of NFPA 13 has a new section 8.3.3.5 that allows mixing a > SR listing with a QR listing as long as it’s the same sprinkler (and > therefor both have the same fast-response element). > > Anybody want to give their 2 cents? > > *Ed Kramer* > Bamford Fire Sprinkler Co., Inc. > 5134 Merriam Dr./Shawnee Mission, KS 66203 > Phone: 913-432-6688 Fax: 913-432-5294 Cell: 785-766-4894 > [email protected] > > _______________________________________________ > 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 > -- Sent from Gmail Mobile
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