Quoting from Ansul's R-102 design Manual 3/1/07 Rev #7. "All duct protection is UL listed without limitation of maximum duct length (unlimited length). This includes all varieties of ductworks both horizontal and vertical including ducts that run at angles to the horizontal and ducts with directional bends."
Hope this helps C. Burton Ford Designer- NICET Certified: Cintas Fire Protection-D-47 Warminster, PA 18974 Phone 267-487-1000 Fax 267-487-1010 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Sunday, January 25, 2009 11:49 PM To: [email protected] Subject: Re: Calculating sprinklers in horizontal grease ducts Mike, ANSWERS IN CAPS and meet the intent? ALTHOUGH iIT MAY MEET THE INTENT IT DOESN'T MEET THE LISTING AND THAT'S WHAT I'M CONCERNED WITH. Any possibility of the UV duct hood cleaners and reduction of protection, i.e. what I've heard about the B.C. experience? THIS IS POSSIBLE--ROTO-CLONE, ELECTROSTATIC PRECIPITATOR, ACTIVATED CHARCOAL FILTER, ETC., BUT I'D RATHER AVOID THESE EXPENSIVE AND TYPICALLY MAINTENANCE NEGLECTED DEVICES. If you use sprinks, can you recommend a "watertight" duct system with enough slope to take the water to a "safe" place? Like outside? GREASE DUCTS ARE WELDED AND THEREFORE GREASE/WATER TIGHT BY DESIGN. EVERY TURN AND LOW POINT REQUIRES AN INSPECTION/CLEANING ACCESS PLATE (ALSO GREASE TIGHT) AND WILL THEN EITHER DRAIN BACK TO THE HOOD, AN ELBOW WITH ACCESS OR OUTSIDE. I'd calc every one of them....... up to the equivalent design area of the building. I'D CALC EVERYONE ALSO BUT WHAT I'M LOOKING FOR IS GUIDANCE ON THE HAZARD AND/OR DENSITY. On Sat, Jan 24, 2009 at 7:04 PM, Michael Fitz <[email protected]> wrote: > Ron, -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list http://lists.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) This e-mail transmission contains information that is intended to be confidential and privileged. If you receive this e-mail and you are not a named addressee you are hereby notified that you are not authorized to read, print, retain, copy or disseminate this communication without the consent of the sender and that doing so is prohibited and may be unlawful. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please delete and otherwise erase it and any attachments from your computer system. Your assistance in correcting this error is appreciated. _______________________________________________ Sprinklerforum mailing list http://lists.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)
