I doubt the hazard has changed, so you would need to have the same design criteria. Therefore, the ESFR protection is needed under. Now, if you can use a K17 instead of a K25, that may be up for debate. But, I don't think you can change from ESFR sprinkler in that scenario.
Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:tm...@mfpdesign.com http://www.mfpdesign.com https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to us via: https://www.hightail.com/u/MFPDesign LinkedIn: https://www.linkedin.com/in/travismack “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” -----Original Message----- From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Mel Herrell Sent: Thursday, March 22, 2018 6:35 PM To: sprinklerforum@lists.firesprinkler.org Subject: Re: EC & SC If this if off topic. Maybe another time. I have ESFR 25.2 Is there a reason i can not use K 8 sprinklers to cover under a 48" duct In same warehouse of my ESFR sprinklers. Thanks Mel On Thu, Mar 22, 2018, 12:53 PM Roland Huggins <rhugg...@firesprinkler.org> wrote: > There’s no restriction on using different spray sprinklers within the > same design basis. There is a lot of confusion on different > k-factors. The problem is that 13 provides some examples of when it > is allowed. The confusion stems from the question - I this list ALL > INCLUSIVE or simply SOME of the examples. IF the AHJ elects to believe > its all inclusive - oh well. In order too arrive at that conclusion > you have to ignore the preceding paragraphs which identifies WHEN this > restriction applies - aka we can NOT change simply to balance or avoid > over discharge. With THAT portion firmly in mind, the list is clearly > some examples. Case in point (and not in the list), can I have a 5.6 > pendent in the middle of a hotel room and a 2.8 pendent in the 4 ft x 5 ft > entrance? Yes but its not in the > list. In reality this text belongs in the Annex because it is > explanatory. > > Roland > > Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler > Assn. > Dallas, TX > http://www.firesprinkler.org <http://www.firesprinkler.org/> > > Fire Sprinklers Saves Lives > > > > > > On Mar 22, 2018, at 7:14 AM, MFP Design, LLC <tm...@mfpdesign.com> > wrote: > > > > Oh, this is one of those AHJs that is heavy badged. > > > > 23.4.4.8 in the 2013 edition clarifies it. Much is in the handbook > though. > > > > > > Travis Mack, SET > > MFP Design, LLC > > 3356 E Vallejo Ct > > Gilbert, AZ 85298 > > 480-505-9271 > > fax: 866-430-6107 > > email:tm...@mfpdesign.com > > > > http://www.mfpdesign.com > > https://www.facebook.com/pages/MFP-Design-LLC/92218417692 > > Send large files to us via: https://www.hightail.com/u/MFPDesign > > LinkedIn: https://www.linkedin.com/in/travismack > > > > “The bitterness of poor quality remains long after the sweetness of > > low > price is forgotten.” > > > > -----Original Message----- > > From: Sprinklerforum > > <sprinklerforum-boun...@lists.firesprinkler.org> > On Behalf Of Fpdcdesign > > Sent: Thursday, March 22, 2018 7:12 AM > > To: Sprinklerforum <sprinklerforum@lists.firesprinkler.org> > > Subject: Re: EC & SC > > > > > > > > > > This may be one of those situations where it doesn’t say you can’t > > do it > instead of saying you can. Ask the AHJ for his/her code reference. > > > > > > > > Todd G Williams, PE > > Fire Protection Design/Consulting > > > > Stonington, CT > > > > 860-535-2080 (ofc) > > > > 860-553-3553 (fax) > > > > 860-608-4559 (cell) > > > > > > > > > > > > > > > >> > >> On Mar 22, 2018 at 10:02 AM, <LLC MFP Design (mailto: > tm...@mfpdesign.com)> wrote: > >> > >> > >> > >> I have an AHJ that is adamant that you are not permitted to use > >> Extended Coverage and Standard coverage sprinklers in the same > >> compartment. Think school building with small alcove area at entry > >> and Ex Cov sprinklers in main part of classroom. > >> > >> > >> > >> Can anyone point me to a section in NFPA 13 where it is acceptable > >> to do this? I am almost certain it is clearly stated, but I can't > >> find it this morning. > >> > >> > >> > >> > >> > >> Travis Mack, SET > >> > >> MFP Design, LLC > >> > >> 3356 E Vallejo Ct > >> > >> Gilbert, AZ 85298 > >> > >> 480-505-9271 > >> > >> fax: 866-430-6107 > >> > >> <mailto:email:tm...@mfpdesign.com> email:tm...@mfpdesign.com > >> > >> > >> > >> > >> < > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mf > pdesi > >> gn.com > %2F&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da4 > >> > 2e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=HJ8OA4xyeHAoxXN > z5mu%2 > >> FYfycgtd5nsFrrpvzulZiNkQ%3D&reserved=0> http://www.mfpdesign.com > >> > >> > >> < > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.f > acebo > >> ok.com > %2Fpages%2FMFP-Design-LLC%2F92218417692&data=02%7C01%7C%7C1121d49f9e6b > >> > 4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C6363 > 790166 > >> > 77342180&sdata=H%2BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk%3D&reserv > ed=0> > >> https://www.facebook.com/pages/MFP-Design-LLC/92218417692 > >> > >> Send large files to us via: > >> < > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.h > ighta > >> il.com > %2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C > >> > 14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eG > dMZGu2 > >> wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> > >> https://www.hightail.com/u/MFPDesign > >> > >> LinkedIn: > >> < > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.l > inked > >> in.com > %2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77% > >> > 7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata= > tT5E7L > >> sZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> > >> https://www.linkedin.com/in/travismack > >> > >> > >> > >> "The bitterness of poor quality remains long after the sweetness of > >> low price is forgotten." > >> > >> > >> > >> -------------- next part -------------- An HTML attachment was > >> scrubbed... > >> URL: < > http://lists.firesprinkler.org/private.cgi/sprinklerforum-firesprinkle > r.org/attachments/20180322/1710591a/attachment.html > > > >> -------------- next part -------------- A non-text attachment was > >> scrubbed... > >> Name: image001.jpg > >> Type: image/jpeg > >> Size: 6420 bytes > >> Desc: not available > >> URL: < > http://lists.firesprinkler.org/private.cgi/sprinklerforum-firesprinkle > r.org/attachments/20180322/1710591a/attachment.jpg > > > >> _______________________________________________ > >> Sprinklerforum mailing list > >> Sprinklerforum@lists.firesprinkler.org > >> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > >> > > -------------- next part -------------- An HTML attachment was > > scrubbed... > > URL: < > http://lists.firesprinkler.org/private.cgi/sprinklerforum-firesprinkle > r.org/attachments/20180322/c70745d0/attachment.html > > > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@lists.firesprinkler.org > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@lists.firesprinkler.org > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > -------------- next part -------------- An HTML attachment was > scrubbed... > URL: < > http://lists.firesprinkler.org/private.cgi/sprinklerforum-firesprinkle > r.org/attachments/20180322/de696585/attachment.html > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > -------------- next part -------------- An HTML attachment was scrubbed... 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