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 e...@bamfordfire.com
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