Bill, The title of that table is "Table 8.3.2.5(a) Temperature Ratings of Sprinklers Based on Distance from Heat Sources". I see no logical way to interpret that as exposed diffusers on exposed ductwork in fake-tech restaurants with snotty waitresses, overpriced drinks, and mass-produced food.
I interpret diffusers as diffusers. Paul J. Pinigis, P.E. Chief Life Safety Engineer -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Minkel Sent: Friday, March 30, 2007 3:33 PM To: [email protected] Subject: RE: Curious IMHO the whole reference in Table 8.3.2.5.a, 1c is to the cylindrical exposed diffuser seen in exposed ceiling situations like warehouses, fancy "fake-tech" restaurants, boutiques, etc. IMHO the reference does not apply to Light Hazard flat lay in acoustical tile ceiling HVAC diffusers which are usually 2' Sq. and 2'-6" above the diffuser would be in the unsprinkled plenum above the sprinkler. Right? Just nod yer head, nod, nod. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jamie Seidl Sent: Friday, March 30, 2007 3:13 PM To: [email protected] Subject: RE: Curious I always looked at it from the distance from the duct. Duct diameter in the center of the tile. Then apply the distance dimension. Jamie Seidl Affordable Fire Protection, Inc. Project Manager P - (800) 862-7860 F - (704) 892-0157 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Minkel Sent: Friday, March 30, 2007 3:03 PM To: [email protected] Subject: RE: Curious It is not clear to me that the reference to a diffuser there is to a lay-in type in a light hazard flat tile ceiling. But even if it is, the definition makes no sense: DOWNWARD DISCHARGE: "Cylinder with 1'-0" or less radius from edge extending 1'-0" below and 2'-6" above"; "edge" of what?, "2'-6" above", above what? Hep me out here folks, I know it's Friday, but still. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of PCE Sent: Friday, March 30, 2007 2:46 PM To: [email protected] Subject: Re: Curious Bill, I would start with Table 8.3.2.5(a) and go from there. Item 1(c) is for a diffuser. PARSLEY CONSULTING Ken Wagoner, SET 760.745.6181 voice 760.745.0537 fax [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> e-mail www.ParsleyConsulting.com <http://www.ParsleyConsulting.com> website Bill Minkel wrote: > We have an AHJ saying our center-of-tile recessed 155F sprinkler is > too close to the HVAC supply diffuser in an A.T.C. (less than 2') I am > curious as to what section or paragraph in NFPA-13, 2002 references > this requirement? I can't find it, maybe one of y'all can hep me? > > > _______________________________________________ > 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) _______________________________________________ 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) _______________________________________________ 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)
