Reminds me of a situation in the past where heads were installed in an air lock 12" from a diffuser on a heat pump that was "fixed" and left on. The head was an ordinary temp head and it fused while its mate in the other airlock was 18" away did not fuse.
Marc Haug, S.E.T. Allied Fire Protection Tel 701-232-7008 Cell 701-893-5919 Fax 701-526-0705 3231 4th Ave S, Suite C, Fargo, ND 58103 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of rongreenman . Sent: Wednesday, July 15, 2015 9:40 AM To: [email protected] Subject: Re: Diffuser discharge temp Two things jump top mind. Is the explanatory material in the handbook annex material verbatim or commentary? In either case they are shalls and so not code (I presume the "individual" is someone the Wizard bestowed a gold badge on). Second, no interpretation is supposed to be made up of a list of what ifs. What if a fire breathing dragon get trapped in the HVAC falls asleep and notes fire? What if Zombie Hitler fire bombs this buildings air duct system? What if transients squat in the ducting and start a campfire to cook their hobo food? People will surely die. On Wed, Jul 15, 2015 at 6:27 AM, Greg McGahan <[email protected]> wrote: > In 8.3.2.5(a) a minimum distance of 2'-6" away from diffusers is > listed to allow Ordinary Temp Sprinklers. > > 8.3.2.5 (9) negates this requirement if the discharge air is less than > 100F. > > The handbook explains the requirement for the 2'-6" minimum distance > and is being interpreted by one individual as if the intent in the > explanation is that in the event of a malfunction the air could run > "hot" (similar to a car running hot) and therefore the 2'-6" requirement > still applies... > > I believe the intent is that if the HVAC normally runs "hot" meaning > in excess of 100F the 2'-6" distance must be maintained in order to > use Ordinary Temp heads... > > > Greg McGahan > Living Water Fire Protection, LLC <http://www.livingwaterfp.com> > 1160 McKenzie Road > Cantonment, FL 32533 > 850-937-1850 > fax 850-937-1852 > _______________________________________________ > 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
