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-firesprinkler.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-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
