Cliff, Thanks for responding. The sidewalls are going to spray on the side of the ducts (14" to 18" round) and will obstruct the discharge. It is kind of an unknown how much the obstruction will be and if a pendent under the duct will cover all of the area. My plan is to put the pendent 1-2" away from the horizontal center of the duct so that any dripping from the water on the duct will not go on the head.
This is unfortunately one of those situations where my solution to the problem was rejected by a pig-headed architect and we have to go with this as an alternative. Todd Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT www.fpdc.com 860-535-2080 (ofc) > On Feb 25, 2014, at 4:59 PM, "Cliff Whitfield" <[email protected]> wrote: > > Todd, > > Will the heads under the ducts cover the areas where you need them without > the sidewalls? If the duct is so low that the sidewalls spray into the side > of it, seems like the heads under duct would be out of the way of the > sidewall spray and should work fine. > > Send me a drawing if you want to. You've got my email. Not that my opinion > carries much weight but I can give it to you anyway :) > > Cheers, > > Cliff Whitfield, SET > President > Fire Design, Inc. > Ph: 719-488-3479 > > > > [email protected] > www.fire-design.com > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Todd - > Work > Sent: Tuesday, February 25, 2014 2:33 PM > To: [email protected] > Subject: Re: Coverage for obstructed sidewalls > > Can't lower them because we would then be too far down > > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > www.fpdc.com > 860-535-2080 (ofc) > >> On Feb 25, 2014, at 4:11 PM, "G. Tim Stone" <[email protected]> wrote: >> >> Todd, Can the Sidewalls be lowered? Or is the duct to deep? >> >> Regards, >> G. Tim Stone >> >> G. Tim Stone Consulting, LLC >> NICET Level III Engineering Technician >> Fire Protection Sprinkler Design >> and Consulting Services >> >> 117 Old Stage Rd. - Essex Jct., VT. 05452 >> CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343 >> [email protected] >> >>> -----Original Message----- >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of Todd >> - >>> Work >>> Sent: Tuesday, February 25, 2014 1:45 PM >>> To: [email protected] >>> Subject: Coverage for obstructed sidewalls >>> >>> I have a situation where some sidewalls sprinklers are obstructed by >>> ductwork. Would it be acceptable to install additional pendents under the >>> ductwork to alleviate the issue? >>> >>> Todd G Williams, PE >>> Fire Protection Design/Consulting >>> Stonington, CT >>> www.fpdc.com >>> 860-535-2080 (ofc) >>> _______________________________________________ >>> 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 > _______________________________________________ > 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
