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.


[cid:image002.jpg@01D55427.AE70BF60]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: 
ni...@protechdesign.co.nz<mailto:ni...@protechdesign.co.nz>  Web 
:www.protechdesign.co.nz
Address:105A Alabama Rd, Redwoodtown, Blenheim 7201, NZ Skype for Business: 
ni...@protechdesign.co.nz<mailto:ni...@protechdesign.co.nz>
[A close up of a sign    Description 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<mailto: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<mailto:sprinklerforum@lists.firesprinkler.org>
Cc: Travis Mack, SET, CFPS, CWBSP, RME-G 
<tm...@mfpdesign.com<mailto:tm...@mfpdesign.com>>; 'Bruce Verhei' 
<bver...@comcast.net<mailto: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.

<image003.jpg><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=>
Travis Mack, CFPS, CWBSP, RME-G, SET
MFP Design, LLC
3356 E Vallejo Ct
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
tm...@mfpdesign.com<mailto:tm...@mfpdesign.com>
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“The bitterness of poor quality remains long after the sweetness of low price 
is forgotten.”


From: Sprinklerforum 
<sprinklerforum-boun...@lists.firesprinkler.org<mailto: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<mailto:sprinklerforum@lists.firesprinkler.org>
Cc: Bruce Verhei <bver...@comcast.net<mailto: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<mailto: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?

<image002.jpg><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=>
Travis Mack, CFPS, CWBSP, RME-G, SET
MFP Design, LLC
3356 E Vallejo Ct
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
tm...@mfpdesign.com<mailto: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: 
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“The bitterness of poor quality remains long after the sweetness of low price 
is forgotten.”


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  • RE: Captive Aire S... Travis Mack, SET, CFPS, CWBSP, RME-G via Sprinklerforum
    • Re: Captive A... Matthew J Willis via Sprinklerforum
    • RE: Captive A... Jonathan Mote via Sprinklerforum
      • RE: Capti... Matthew J Willis via Sprinklerforum
        • Re: C... Ron Greenman via Sprinklerforum
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            • ... Matthew J Willis via Sprinklerforum
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