I hear of one instance where this was done where after the installation, a whistle developed from the moving air.
Tom Wellen On Jun 12, 2013, at 11:48 AM, <[email protected]> wrote: > Yeah you read that right. > > I had a query regarding running a 1" sprinkler drop through a duct to provide > sprinklers below. The client is afraid that running the line beside the duct > will look ugly and doesn't want to do that. > > The area does have a finished ceiling and the duct is exposed and extends to > about 2ft below the ceiling. Essentially the duct is similar to a soffit as > far as obstruction rules are concerned. The duct is just over 48" in width. > > I suggested just spacing the sprinklers beside the run of duct as if you were > dealing with a soffit but for some reason the idea of punching through the > duct is more attractive. > > I couldn't find any prohibitive language in NFPA 13 that would prevent this. > > Anyone know of anything or any text that expressly prohibits this? > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > _______________________________________________ > 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
