I don't know why this question just came to me now and not years ago. Are you supposed to treat smoke and CO alarms in 13D systems like you treat lights and ceiling fans, IE, 3 feet away for pendent heads and 5 feet for sidewalls?
There's no four times rule in 13D (Using the 2010 edition) so I'm thinking the only way to treat it is as a light or ceiling fan. A smoke detector is at most, what, six inches in diameter and 2 inches deep? With a recessed pendent head and the deflector 1" down from the ceiling you could use the beam rule and stay 1'-6" away. I put dashed circles around all the surface mounted lights on my prints for our guys to install with, and it just hit me that I also put them on the smokes and COs as a matter of habit. Any thoughts on this? Anyone ever have an AHJ question the sprinkler proximity to a smoke alarm in a house before? Benjamin Young _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
