Thank you Ron. The exhaust duct reduces to a third of its size within the plenum (above the grill hood), and the mechanical code is locating the upright heads outside of the duct in the cavity created by the reduction. These upright heads will be ineffective controlling a fire as they are strangely located. I get the feeling that the mechanical code is looking for that last ditch effect to put water on an uncontrollable fire...
Thank you Steven Steven MacKinnon Fire Protection Division Hartcorn Plumbing and Heating, Inc. 850 South Second Street Ronkonkoma, NY 11779 Office 631-580-2300 Fax – 631-580-1090 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of rongreenman . Sent: Friday, May 30, 2014 2:03 PM To: [email protected] Subject: Re: Hibachi grills There's provision for sprinklers (and has always been as far back as I go) for sprinklers in hoods. This is an alternative to CO2, or wet or dry chem, or any other acceptable protection method for commercial cooking hoods. Look at 13-10.Figure A.7.10.2. FYI: a hibachi in Japan is a box with charcoal that's placed under the table (think table at floor level with a hole under it for your feet and legs) that is then covered with a quilt that also covers the diners' legs and is used to keep the lower extremities warm during mealtimes on cold days (think paper walls and no heating system with snow outside). That morphed into a small table top grill similar to a Little Smokey but made out of cast iron (original hibachis were wooden boxes filled with sand). The grills used in a Beni Hana type teppan (cooking style type like stir fry or teriyaki or tempura)) restaurant is a flat grill and so by definition, for our purposes, is a flat grill cooktop and so falls into the hazard of grease in depth, along with deep fat fryers and tilting tray skillets. You cannot use sprinklers to protect this type of cooking surface unless listed for grease in depth. There has not been a head so listed since the early nineties. You can protect the ductwork and plenum areas with sprinklers but why would you when the chem system does that anyways? And if you use a rated and listed for fire protection, self-cleaning hood you don't need anything except for the surface chem system. On Fri, May 30, 2014 at 6:13 AM, Steve Mackinnon <[email protected]> wrote: > That's all I saw in that thread too... > > Steven MacKinnon > Fire Protection Division > Hartcorn Plumbing and Heating, Inc. > 850 South Second Street > Ronkonkoma, NY 11779 > Office 631-580-2300 Fax - 631-580-1090 > > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Matt > Grise > Sent: Friday, May 30, 2014 9:11 AM > To: [email protected] > Subject: RE: Hibachi grills > > You might check the mail archive. I recall a lengthy thread on hibachi > restaurants a while back... although I think it was mostly regarding > hazard level. > > Matt Grisé PE*, LEED AP, NICET II > Sales Engineer > Alliance Fire Protection > 130 w 9th Ave. > North Kansas City, MO 64116 > > *Licensed in KS & MO > > 913.888.0647 ph > 913.888.0618 f > 913.927.0222 cell > www. AFPsprink.com > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Steve > Mackinnon > Sent: Friday, May 30, 2014 8:07 AM > To: [email protected] > Subject: Hibachi grills > > Good morning everyone, > > I'm working on a small restaurant that will have multiple hibachi > grills... Somehow my boss got ahold of an old 2000 New York State > Mechanical code detail showing two upright heads above the fume hood > in an exhaust plenum. I'm trying to locate a similar detail or > requirement in the latest edition (2010), has anyone come across this before?? > > Thanks in advance!! > Steven > > > Steven MacKinnon > Fire Protection Division > Hartcorn Plumbing and Heating, Inc. > 850 South Second Street > Ronkonkoma, NY 11779 > Office 631-580-2300 Fax - 631-580-1090 > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
