If you are referring to Tyco WS sprinklers, then you do see that it is not listed when there is a horizontal mullion but you also see in its installation details that there is no maximum distance indicated for the “ceiling” to the sprinkler. Yup, go look at. One other aspect to this is that there are application instances where the building code requires sprinklers at the glass in lieu of a wall fire resistance rating, but not necessarily using Tyco WS sprinklers. Such is the case for glazing in atriums where the wall need only be 1-hour rated. A standard QR pendent would meet the building code requirement. If that was the situation then the lower sprinkler would need a multilevel shield to comply with an NFPA 13 installation. Right? So it may be possible to set this up as requested by the Architect but it would look like hell if standard black pipe and standard fittings were used. There would be a couple of ways to pipe this. I think each way would look ridiculous. Every sprinkler person in town would be snap-chatting pictures of it. Arguments about sprinklers not activating mean nothing. They are akin to saying there is nothing to burn. We just jump through the hoops given to us and keep moving. The Architect has his or her tit in a wringer. You just need to convince them to come up with an appropriate architectural solution that makes them look like they know what they are doing. The glazing as they have it now has to be architecturally rationalized in their mind to be the wrong thing. Somehow seed that thought and get it to grow.
Allan Seidel St. Louis, MO > On Aug 25, 2020, at 8:56 AM, Joe Burtell via Sprinklerforum > <sprinklerforum@lists.firesprinkler.org> wrote: > > I have an architect that wants to put additional window sprinklers below a > horizontal mullion. I am absolutely against this idea as it's not listed or > approved for this. Has anyone run into this situation? > > Best regards, > > *Joe Burtell, SET, CFPS* > > [image: Burtell Fire_Small] > > Phone | Fax | Mobile| Text *406-204-4653 <++1-406-204-4653>* > > 116 N. 11th Street | Billings, MT 59101 > > Email: j...@burtellfire.com > > Web Site: http://www.burtellfire.com > > *“**The bitterness of poor quality remains long after the sweetness of low > price is forgotten.**”* > > *NOTICE:* The information contained in this e-mail transmission is > intended only for use of the individual or entity named above. This e-mail > transmission, and any documents, files, previous e-mail transmissions or > other information attached to it, may contain confidential information that > is legally privileged. If you are not the intended recipient of this > e-mail transmission, or the employee or agent responsible for delivering it > to the intended recipient, you are hereby notified that any disclosure, > dissemination, distribution, copying or other use of this transmission or > any of the information contained in or attached to this e-mail is strictly > prohibited. If you have received this e-mail transmission in error, please > immediately notify us by return e-mail transmission and destroy the > original e-mail transmission as well as its attachments without reading or > saving it in any manner. Thank you. > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
