Sometimes...just sometimes, the AHJ might accept reduced hose streams if you can get the calcs to work otherwise. It might be worth the try. 1) they shouldn't need hose except for mop up and 2) it shouldn't take all the sprinklers operating in the design area to control it, so if everything works as programmed a few sprinklers will control it and the FF's will have enough water to mop up.
Scott Futrell (763) 425-1001 x12 Office (612) 759-5556 Cell -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Sunday, September 22, 2013 6:53 PM To: [email protected] Subject: Re: old 14.5k ecoh brass upright We can't make the curve period..if we change the K factor On Sep 22, 2013, at 6:47 PM, "rongreenman ." <[email protected]> wrote: > Did the AHJ require that ever popular 10% cushion in the original > calcs. Do you make the curve without the 10% cushion if required? > > > On Sun, Sep 22, 2013 at 4:37 PM, Greg McGahan <[email protected]> wrote: > >> We need to replace 3 painted heads in an existing storage room that >> currently has 14.5 k heads. Going to the closest Equivalent head >> changes the K factor to 14.0 and it makes enough of a difference that >> the calks no longer work.. >> >> Even if we replace all of the heads in that area with 14.0's it will >> not work. Does anyone happen to have these laying around? >> >> Question - if we can't find them, what should we do? The calcs do not >> work due to a combination of a slightly degraded water supply and >> being incorrectly calculated by the original installing contractor - >> we have the original drawings and they used a .15 density throughout >> the building instead of the required .20. (yes- even when originally >> installed). The difference is only a few pounds, but it goes from >> slightly positive to negative. The AHJ has closed his ears and eyes >> and said "get the painted heads replaced". >> >> Thanks for your help. >> Greg >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprink >> ler.org >> > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > [email protected] > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > They are happy men whose natures sort with their vocations. -Francis > Bacon, essayist, philosopher, and statesman (1561-1626) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ 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
