Further to Nicky’s comments I would add that the systems installed as tail end to fire sprinklers do not have the hood washing feature that the Captive Air appear to have.
Pressure reducing is needed in some cases. Russell Gregory Christchurch; New Zealand From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Nicky Marshall via Sprinklerforum Sent: Friday, 16 August 2019 11:43 AM To: sprinklerforum@lists.firesprinkler.org Cc: Nicky Marshall; Travis Mack Subject: RE: [EXTERNAL] Re: Captive Aire Systems In New Zealand, we frequently connect them to a sprinkler system as the installation of an approved ‘restaurant system’ permits sprinklers to be omitted from ducts and hoods in our standard. We do not allow a cumulative demand. Although our standard does not explicitly state what you should do. When connected to a sprinkler system they are treated much like a ‘tail-end’ pre-action or dry system. Because sprinkler system compliance is dependent on that system, they are connected with a supervised/monitored valve to warn if closed and they also usually have a flow or operation switch on them that indicates on a fire alarm panel. Our suppliers also do the calculations. Nicky Marshall Southern Regional Manager PROTECH DESIGN LIMITED Specialist Fire Protection Consultants Phone: +64 (0)3 579 5577 extn 1 Mobile: +64 (0)21 433 488 Email: <mailto:ni...@protechdesign.co.nz> ni...@protechdesign.co.nz Web :www.protechdesign.co.nz Address:105A Alabama Rd, Redwoodtown, Blenheim 7201, NZ Skype for Business: <mailto:ni...@protechdesign.co.nz> ni...@protechdesign.co.nz A close up of a signDescription automatically generated “I always wondered why somebody doesn't do something about that. Then I realised I was somebody” Lily Tomlin From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Travis Mack, SET, CFPS, CWBSP, RME-G via Sprinklerforum Sent: Wednesday, August 14, 2019 6:32 PM To: sprinklerforum@lists.firesprinkler.org Cc: Travis Mack, SET, CFPS, CWBSP, RME-G <tm...@mfpdesign.com>; 'Bruce Verhei' <bver...@comcast.net> Subject: RE: Captive Aire Systems Get this. They are concerned of the domestic system robbing the hood of the water. So this is why they are pushing it to the sprinkler system. We’ve seen these attached to both domestic and fire. I always push for domestic because I don’t want to deal with them. I find it funny that the hood supplier will say it has to connect to the sprinkler system but they won’t do anything to prove it will work. They throw that all back to the sprinkler guys. Just been one of those days. <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mfpdesign.com_&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=Acxe8iKYA32DZOYelVqiEbnMyMuAFqfl5EZoKkQ2Avg&e=> <image003.jpg> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 <mailto:tm...@mfpdesign.com> tm...@mfpdesign.com www.mfpdesign.com <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mfpdesign.com&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=Gltsm1BrBL21AQMy8Nvo33FoaCPDBK_xhLt7P67dJR8&e=> Send large files to us via: https://www.hightail.com/u/MFPDesign LinkedIn: https://www.linkedin.com/in/travismack “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Bruce Verhei via Sprinklerforum Sent: Wednesday, August 14, 2019 3:28 PM To: sprinklerforum@lists.firesprinkler.org Cc: Bruce Verhei <bver...@comcast.net> Subject: Re: Captive Aire Systems I might be a couple years out of date. I think the ones we saw were off domestic water, with a small backflow device. You can’t run a restaurant without water, so there is no concern about water system not being monitored. Best. On Aug 14, 2019, at 15:19, Travis Mack, SET, CFPS, CWBSP, RME-G via Sprinklerforum <sprinklerforum@lists.firesprinkler.org> wrote: I’m sure some of you have dealt with these Captive Aire / Piranha systems. Basically they are hood systems that connect to the sprinkler system. The one I have a data sheet for has an operating pressure of 32-70 psi and flows vary depending on # of nozzles. How do those of you dealing with these handle them? The supplier will not do any calculations for the system. My question is, do we treat these like a “rack” system and balance the hood systems to the overhead? If I have a kitchen with 3 of these, do I figure 0, 1, 2 or 3 flowing simultaneously with the overhead. As you can imagine, a standard sprinkler in the kitchen is ±10 psi. Now, if we have to treat this like a rack system and balance at the junction point, this 30 psi for the Piranha system will significantly over-discharge the sprinklers leading to a much larger kitchen demand. These often seem to be brought up toward the end of the project leaving everyone scrambling. What has the collective group been doing with these things? <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mfpdesign.com_&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=Acxe8iKYA32DZOYelVqiEbnMyMuAFqfl5EZoKkQ2Avg&e=> <image002.jpg> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 <mailto:tm...@mfpdesign.com> tm...@mfpdesign.com www.mfpdesign.com <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mfpdesign.com&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=Gltsm1BrBL21AQMy8Nvo33FoaCPDBK_xhLt7P67dJR8&e=> Send large files to us via: https://www.hightail.com/u/MFPDesign LinkedIn: https://www.linkedin.com/in/travismack “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=T3abdCJcL43WzYbqM5JYSYAuF4bLuKvYHLHDvX-ckJI&e=> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=T3abdCJcL43WzYbqM5JYSYAuF4bLuKvYHLHDvX-ckJI&e=> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=P9cL1oBlMFsJR9PkQUpPBhDWLqRBCWXfiCfaqcJDrso&s=T3abdCJcL43WzYbqM5JYSYAuF4bLuKvYHLHDvX-ckJI&e=>
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