Look at what the 2016 has added. My first read is the bulb type is what is important. But let me state, I’m not looking at the book and going from memory. My personal opinion is the QR would be a better choice but I need to do some research before commit 100%.
John August Denhardt, P.E. Strickland Fire Protection On Feb 15, 2018, at 6:43 PM, Ron Greenman <[email protected]<mailto:[email protected]>> wrote: John, you can’t mix them. So is it the bulb size I can’t mix or the listing in the application? What if it’s a fast response link in a typically QR sprinkler that is listed SR in this application? I think your reasoning and Nick’s and mine all have merit, but I think we’re trying to parse out what this all means in 13. I’m just reading the rules without concern for which is best in an actual situation because then you gave to ask which works first and then if more than one goes which is best. I don’t think the code can tell us that. On Thu, Feb 15, 2018 at 3:28 PM John Denhardt <[email protected]<mailto:[email protected]>> wrote: My 3 cents. I would us the QR. The other sprinklers are QR but in this application, they only receive the SR. QR provides better protection in my opinion. John John August Denhardt, P.E. Strickland Fire Protection On Feb 15, 2018, at 5:28 PM, Ed Kramer <[email protected]<mailto:[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]<mailto:[email protected]> _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org -- Sent from Gmail Mobile _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[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
