Hello all!
I feel like I should know the answer to this and at one time I probably did, but I was just asked if there was a requirement to provide hydraulic calculations if adding over a certain number of sprinklers to a system. My off the cuff answer was no, that unless you were adding sprinklers in the remote area, as long as you use the existing hydraulic pipe sizing, there was no requirement to do additional calculations. But, as happens to me the older I get, the more I thought about it, the less confident I was in my answer. I've looked through NFPA-13 and found no requirement, so now I prevail myself upon the forum-ites to steer me in the right direction. Are additional calculations required? John Paulsen - SET Crown Fire System Design 6282 Seeds Rd. Grove City, OH 43123 P - 614-782-2438 F - 614-782-2374 C - 614-348-8206
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