Thanks Travis, I was just trying to convince myself that if it was still at or under the OH2 curve and I am allowed to design anywhere along that curve it could still be called OH2.
Thank you, Dewayne Martinez Fire Protection Design Manager TOTAL Mechanical Building Integrity W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected]<mailto:[email protected]> Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ [cid:[email protected]] From: Travis Mack <[email protected]> Sent: Wednesday, February 15, 2023 3:49 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Cc: Dewayne Martinez <[email protected]> Subject: [External]RE: Can OH II listed EC sprinklers be used for storage application? The EC sprinklers are listed at a specific density, so you can't change that. You can calculate 2000 sq ft, but it will still be the minimum flow / pressure at a given spacing per the data sheet. Also, they are not listed for storage. So, they can not be used for storage applications. Travis Mack, SET M.E.P.CAD | 181 N. Arroyo Grande Blvd. #105 I Henderson, NV 89074 www.mepcad.com<https://link.edgepilot.com/s/82879486/cWBkTDBhYECX8h7rQfqBSg?u=http://www.mepcad.com/> | m: 480.547.9348 AutoSPRINK | AutoSPRINK FAB | AutoSPRINK RVT | AlarmCAD Book appointment time in my calendar https://calendly.com/t_mack_mepcad<https://link.edgepilot.com/s/c6c1baa9/-yDGAv1XmECNIm1IGeQsnQ?u=https://calendly.com/t_mack_mepcad> From: Dewayne Martinez <[email protected]<mailto:[email protected]>> Sent: Wednesday, February 15, 2023 2:46 PM To: [email protected]<mailto:[email protected]> Cc: Dewayne Martinez <[email protected]<mailto:[email protected]>> Subject: [Sprinklerforum] Can OH II listed EC sprinklers be used for storage application? I have a customer that wants to store non-encapsulated ,Class II on single/double row racks with 8ft aisles. to 15ft high. When I work out the numbers and apply Fig 16.2.1.3.4.1 (NFPA 13, 2013ed) I get a density of 0.189/2000 for high temperature sprinklers. The original system was designed using extended coverage K14 sprinklers, 18x18 at OH 2 density. If I go up the OH2 curve to 2000 sq ft I get a 0.19/2000 density. Can I pick up the additional EC sprinklers for the 2000 sq ft at the required EHP for the OH 2 spacing and call it good if the calcs work? Thank you, Dewayne Martinez Fire Protection Design Manager TOTAL Mechanical Building Integrity W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected]<mailto:[email protected]> Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/<https://link.edgepilot.com/s/199820fc/wuTebtA6o0GSgxVwMTxYxw?u=http://www.total-mechanical.com/> [cid:[email protected]] CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.
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