Hello Craig, I have found that "MOST" hood system links used are 360, 450, or 500. To meet the UL-300 Standard for hood extinguishment systems dry chemical is no longer used for the appliance areas of hoods. IF you can find an AHJ that will allow it you can use a UL-300 Wet System system for the appliances and a Dry Chemical for the plenum and exhaust ducts.
Tuesday, December 18, 2007, 4:51:29 PM, you wrote: > 286's? I would hope the ceiling temp surrounding the hood would never > get any where near the 165 temp. We had to use high temp heads near the > exit path for some older style pizza ovens as the blast of heat released > when the door was opened could fuse the 165 heads but they were not > exhausted at that spot. > But the open grilles are highly ventilated and the ones I've seen are > all protected with dry chem. Considering the cook is standing over the > grille the whole time he is cooking, I would hope that the temp would > not be anywhere near the 165 deg. temp. let alone needing a 286. > Go out to dinner and take an infra-red temp gun and shoot some real-life > temperatures just for research. Oh yeah and try and enjoy the dinner. > I'd be curious to find out what the release temps are for the dry chem > systems within the hood. > Craig L. Prahl, CET > Fire Protection Group > Mechanical Department > CH2MHILL > Lockwood Greene > 1500 International Drive > PO Box 491, Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > [EMAIL PROTECTED] > http://www.lg.com > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Greg > McGahan > Sent: Tuesday, December 18, 2007 4:22 PM > To: [email protected] > Subject: Hibachi hoods and sprinklers > Does anyone have any experience with sprinklers close to hoods in > Hibachi restaurants? > We frequent one locally with 165 degree sprinklers and the sprinklers > have never gone off. We just finished one and the hood people are saying > that we better use 286 deg heads anywhere close to the Hibachi hoods. > Any comments/advice? > Greg > > Living Water Fire Protection, LLC > 1160 McKenzie Road > Cantonment, FL 32533 > 850-937-1850 > Fax: 850-937-1852 > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > To Unsubscribe, send an email > to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) -- Best regards, Charles Thurston Coastal mailto:[EMAIL PROTECTED] _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
