Is there a ceiling or are these just attached to a duct drop? How far down are they from the sprinklers?
Have you looked at Chapter 8 of NFPA 13 for the obstruction rules? Over 48" isn't the only time you need to be addressing obstructions. Craig L. Prahl Fire Protection Group Lead CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29303 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Thomas Reinhardt Sent: Tuesday, June 17, 2014 6:50 PM To: [email protected] Subject: Round Ceiling Diffusers Question for the group. I have a large industrial warehouse fully sprinklered. There are numerous round ceiling diffusers that are approximately 5 and half foot diameter. Does the 4 foot rule apply. Do they need sprinklers underneath. Thanks IMPORTANT NOTICE: This e-mail message is intended to be received only by persons entitled to receive the confidential information it may contain. E-mail messages may contain information that is confidential and legally privileged. Please do not read, copy, forward, or store this message unless you are an intended recipient of it. If you have received this message in error, please forward it to the sender and delete it completely from your computer system. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
