Contact CaptiveAir the system you describe is the CORE. It is only required to be feed from the domestic. The issue I have had is getting calculations and flow numbers at the correct points to verify the system will work. In my case the installer called the GC who then called the sprinkler company because they know how to do calculations. Problem is these are a bit different.
CaptiveAir will send you information that will assist with providing the needed information to the AHJ. In the manual the hydraulics covers about 2-3 pages. I would not allow the sprinkler system to feed the CORE. Every time the hood fan is shutdown the CORE washes the inside of the hood. That would activate your flow switch. The FD and the owner are then going to blame your company for the FD response every night. I am sure that will get old very quick. Duane T. Fox, Jr., CFPS, CFI, CFPE Asst Chief, Technical Services DE State Fire Marshal’s Office 302-856-5298 From: Sprinklerforum [mailto:[email protected]] On Behalf Of rongreenman . Sent: Friday, May 19, 2017 12:08 PM To: [email protected] Subject: Re: Kitchen hood system and fire sprinkler Travis, What are "these?" Ansul Piranhas? On Fri, May 19, 2017 at 8:40 AM, Travis Mack <[email protected]<mailto:[email protected]>> wrote: I've run into these on a few projects. We have convinced the GC to connect to domestic system in the past. In this particular project, the GC is forcing the issue to connect to the fire sprinkler system. My question is: Do we need to flow these and a design area for sprinklers in the kitchen at the same time? Or can they be sized independently? These things require as much as 70 psi. The data sheet provides a k factor and a pressure range of 40-70 psi. The pressure range is dependent on the length of the hood. However I can't get the vendor to provide the exact psi for it at this time. My thought is to use the k-factor and hit it with 70 psi. If I have to flow the kitchen sprinklers (900 sq ft) it will cause quite the over discharge and likely not work. So, any ideas if I should flow them simultaneously like a rack system, or just prove each other independently? Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org -- Ron Greenman [email protected]<mailto:[email protected]> 253.576.9700 The Universe is monstrously indifferent to the presence of man. -Werner Herzog, screenwriter, film director, author, actor and opera director (1942-)
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