12" from the flat side of a 2' sq. or the corner of a 2' sq. ? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of PCE Sent: Friday, March 30, 2007 3:39 PM To: [email protected] Subject: Re: Curious
Bill, Lay-in, schmay-in, it's still a downward discharging diffuser, right? Ok, draw a circle with a 12" radius from the edge of the diffuser, all the way around the diffuser. Next, change that circle to a cylinder with the bottom level at 12" below the level of the diffuser, and the top level 2'-6" above the diffuser. Now, if your sprinkler is inside that cylinder you just drew it has to be intermediate temperature rated. If it is outside, it can be any temperature. Did that help? 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: > 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)
