Does anyone have any knowledge on installing concealed pendent sprinklers in false beams? The Reliable cut sheet (bulletin 006 Rev I) for RFC43 says top of deflector to ceiling installed in beams ½ to 1. Now the residential sprinkler design guide (bulletin 140 Rev K) specifically says RFC concealed sprinklers cannot be installed in structural or false beams that impede the flow of air through the vent holes into the space above. Im not exactly sure what would impede the flow???
The Tyco cut sheet only says the deflector to ceiling for concealed heads installed in beams 7/8 to 1 1/8 below bottom of beam. When I called Tyco all the guy said was, from the way we understand it you can install them in beams and just follow NFPA sprinkler deflector criteria .he didnt sound very convincing and Im just all around confused, I do very little residential project so Im not as familiar and up to date on all things residential. Any information would be helpful. Thank You Rocci Cetani III, CET Lead Designer Water-Based Fire Protections Systems Layout, Nicet Level III Northern California Fire Protection Services Inc. 16840 Joleen Way Bldg. A Morgan Hill, CA 93037 P-(408) 776-1580 EXT.111 F-(408) 776-1590 [email protected] www.norcalfire.com <http://www.norcalfire.com/> CONFIDENTIALITY NOTICE: This message and any document accompanying it may contain confidential information belonging to the sender. The information is intended only for the use of individual or entity named above. If you are not the intended recipient, or the employee or agent responsible to deliver this message to the intended recipient, you are hereby notified that any disclosure, copying or taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this transmission in error, please immediately notify us by telephone to arrange for return of the documents. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
