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
