And to echo David I didn't suggest that the hood IT&M guy was necessarily better than a sprinkie but the former has more incentive to scrutinize the hood closely since it's all he does and these repairs are his bread and butter (and often he is on commission). That said I know of about a half dozen sprinklered hood systems, most in institutional environments like you describe. Most are maintained well. None have ever been called upon to work. You do not need to use EA-1s or any directional nozzle in hoods without fat fryers. Any sprinkler head of the appropriate temperature is acceptable. Bulbs better than links but I know you know that.
On Mon, May 3, 2010 at 4:59 PM, David de Vries <[email protected]> wrote: > I will try and find the picture I have of the last installation I saw > protected by sprinklers. The "sprinkler" in the exhaust duct was about the > size of a baseball - layer after layer of hardened grease. It did not > operate during the fire, which took out a chunk of the roof to the tune of > ~$400K. > > And I am not suggesting that wet chem techs are any more, or less, > responsible than sprinkler contractors, just that these installations tend to > get overlooked. > > On the installation side, if you do go with sprinkler protection, be sure > someone puts in access panels so that you, or whoever is doing the work, can > clean or replace the sprinks when needed. Oh, since 96 now requires fusible > links to be replaced every 6 months, you may want to consider glass bulb > sprinks, nice robust ones of the correct temp! > > Dave > > David A. de Vries, P.E., CSP > Firetech Engineering Incorporated > > > > --- On Mon, 5/3/10, Chris Cahill <[email protected]> wrote: > > > From: Chris Cahill <[email protected]> > Subject: RE: Kitchen Hoods > To: [email protected] > Date: Monday, May 3, 2010, 4:47 PM > > > I now regret bringing the fryer into this. It's interesting how this forum > will pick a piece of a thread and run that way. Just an observation, I > assume it related to the written form where we lose a great deal of > communication. IT IS THE BEST PLACE ON THE NET OF ITS KIND IMHO. > > I did say originally there was/is NO FRYER. I probably should have > emphasized that in the first sentence not buried in the second paragraph. > This is an existing school. Haven't had a fryer in 20 years they say. > Could they in the future, sure. But fried food is bad for you in case you > didn't know. WHAT ABOUT THE CHILDREN! Oh and the existing hood has had > nothing in it forever. > > Some how we think the ITM guy for the wet chem is better than our industry? > Why would one think that? I'm sure they have their share of low bid guys > just like us and who do you think a school would use even if they did ITM? > > Oh and I have 16 brand new EA-1's from 1996 about 8' from my seat. For the > last 5 years they have been stored in a climate controlled office in a safe, > yes I'm serious. But again no fryer, no EA-1, no problem, well sort of. > > I do appreciate the comments thus far which supports my thinking this is a > bad idea. But my real question was more curiosity about any actually doing > non-fryer cooking hoods with sprinklers these days. Trying to convince the > PE is the task at hand. Before I pushed too hard I didn't want to get > caught with "well in the other 49 states this is routine". > > And Dave, they don't come in 1" that I could find. But I guess I could put 2 > - 1/2" together in parallel to get to the 1" needed, lol. > > Chris Cahill, P.E. > Fire Protection Engineer > Sentry Fire Protection, Inc. > > 763-658-4483 > 763-658-4921 fax > > Email: [email protected] > > Mail: P.O. Box 69 > Waverly, MN 55390 > > Location: 4439 Hwy 12 SW > Waverly, MN 55390 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: AFT WA 4184/AFL-CIO, SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
