We have had several projects rejected by the plans examiner recently because we didn't hydraulically calculate each floor. These are multi-story residential projects with typical floor plans. Some of the projects are zoned per floor, but others are piped with the main on the first floor and supplied with the CPVC branch lines running vertically through the walls. This is possible, as mentioned, due to the identical nature of the unit layout of each floor.
The Section Manager of the sprinkler review department evidently interprets the standard to require hydraulic calculations for every floor, regardless of typicality. Does anyone see this as a correct interpretation or necessary? I've asked him to provide the section of the standard that he is relying on to justify this. It seems somewhat burdensome, considering all things remaining the same except a drop in elevation, one could reasonably expect an increase in available pressure to the system on the floor below. Curtis Tower Sr. Fire Protection Specialist Central Fire Protection Office: (214) 496-9797 Mobile: (682) 667-0323 Fax: (214) 496-9201 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
