State of Minnesota… 2015 MN Building Code
Reed A. Roisum, SET | Karges-Faulconbridge, Inc. | Senior Fire Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile: 701.388.1352 | KFIengineers.com<http://www.kfiengineers.com> From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Kyle Montgomery Sent: Friday, September 7, 2018 11:28 AM To: sprinklerforum@lists.firesprinkler.org Subject: RE: Horizontal Automatic Standpipe Demand Which code section requires automatic standpipes for detention facilities? How long has that been in the code? -Kyle M From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Reed A. Roisum, SET Sent: Wednesday, September 5, 2018 5:38 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: [EXTERNAL] RE: Horizontal Automatic Standpipe Demand No. They didn’t have a requirement for automatic standpipes when the current system was installed as the fire pump is clearly not sized for automatic. We are adding hose connections to meet the building code and replacing the fire pump. Reed A. Roisum, SET | Karges-Faulconbridge, Inc. | Senior Fire Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile: 701.388.1352 | KFIengineers.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kfiengineers.com&d=DwMGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=Sif2hKl53EFLAQ6PoIME6Os3W-0i5bn1phYh5PJDbts&s=w2VzteMimhSUFrcCD8EuVUPfrOsYkXPVzbQYatcCc5M&e=> From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>> On Behalf Of Fpdcdesign Sent: Wednesday, September 5, 2018 7:28 PM To: Sprinklerforum <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Subject: Re: Horizontal Automatic Standpipe Demand Any idea of the original design criteria? On Sep 5, 2018 at 8:25 PM, <SET Reed A. Roisum<mailto:raroi...@kfi-eng.com>> wrote: I have a building that doesn’t require standpipes based on height, but it does require a Class III automatic standpipe system because it is a detention facility. It is 3 floors and we have more than 3 hose connections on each floor. It is a fully sprinklered building but it is not a combined sprinkler/standpipe system. There is a single supply main for the standpipes that supplies multiple hose connections on each floor (not in stairwells). From what I can tell, the standpipe system demand is 750 gpm @ 100 psi. NFPA 14, 2013 edition, 7.10.1.2.2 says if we have a horizontal standpipe on a Class III system that supplies three or more connections on a floor, we need to calculate 250 gpm at the 3 hydraulically most remote hose connections for a total of 750 gpm (at 100 psi). We are also to include the topmost outlet of each of the other standpipes; however, since we technically only have a single standpipe, I don’t believe we would add another 250 gpm?? Is that correct? I would just flow 250 gpm at the 3 most remote hose connections on third floor?? Thank you. Reed Roisum Reed A. Roisum, SET | Karges-Faulconbridge, Inc. | Senior Fire Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile: 701.388.1352 | KFIengineers.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kfiengineers.com&d=DwMGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=Sif2hKl53EFLAQ6PoIME6Os3W-0i5bn1phYh5PJDbts&s=w2VzteMimhSUFrcCD8EuVUPfrOsYkXPVzbQYatcCc5M&e=> ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. 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