It says specifically listed. That means you must use specifically listed sprinklers. How deep is the space? Is it flat or sloped? If it meets the criteria for the specially listed, then that is what you use. Ive been down this road many times.
Travis Mack, CFPS, CWBSP, RME-G, COC, SET Senior Engineering Manager MFP Design 480-505-9271 ext. 700 C: 480-272-2471 [email protected]<mailto:[email protected]> www.mfpdesign.com<http://www.mfpdesign.com> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> From: Sprinklerforum <[email protected]> On Behalf Of Trillium Fire Sprinkler Design INC via Sprinklerforum Sent: Tuesday, January 11, 2022 2:05 PM To: [email protected] Cc: Trillium Fire Sprinkler Design INC <[email protected]> Subject: RE: COMBUSTIBLE CONCEALED SPACE My question is: Are QR uprights listed to be used in those areas or does it have to be a CCS sprinkler? Troy -----Original Message----- From: Sprinklerforum <[email protected]<mailto:[email protected]>> On Behalf Of Tom Wellen via Sprinklerforum Sent: January 11, 2022 3:56 PM To: [email protected]<mailto:[email protected]> Cc: Tom Wellen <[email protected]<mailto:[email protected]>>; Trillium Fire Sprinkler Design INC <[email protected]<mailto:[email protected]>> Subject: Re: COMBUSTIBLE CONCEALED SPACE Troy, No. NFPA 13, 2019 edition in 9.3.2 is specific that sprinklers are listed for horizontal combustible concealed spaces. Specifically listed to provide protection..... On Tue, Jan 11, 2022 at 2:40 PM Trillium Fire Sprinkler Design INC via Sprinklerforum <[email protected]<mailto:[email protected]>> wrote: > Can someone confirm that it is not mandatory to use CCS sprinklers in > a space 36" or less? > > > > I know it allows for larger spacing, but code wise. I don't believe > they are a must and the space can be protected with QR uprights. > > > > Regards > > > > Troy S > > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto:[email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl<http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl> > er.org > -- Tom Wellen - May '91 Senior Fire Protection Consultant Fire Engineering & Consulting, LLC (972) 355-2159 fireeac.com <http://fireeac.com/<http://fireeac.com>> _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org<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<http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
