How about a bucket test? JACK FAIRCHILD
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Sean Lockyer Sent: Wednesday, January 09, 2013 5:22 PM To: [email protected] Subject: FW: RE: Pre-.05 density heads: What heads can be used as a replacement ? From: Sean Lockyer Sent: Wednesday, January 09, 2013 5:11 PM To: '[email protected]' Subject: RE: Pre-.05 density heads: What heads can be used as a replacement ? The sprinklers in question are the old Central, Low Flow, Optima Pendents which are 3.0 K-factor and are installed in a standard 3-story apartment building (13R, 1997/1999 Edition). If the spacing was limited to 12' x 12' or even 14' x 14' then I think a standard 4.9 at those same spacing requirements will suffice but I have never seen a residential system installed in an apartment installed with sprinklers spaced at less than 16' x 16'. Keep in mind, this is from the late 90's and is located in the Central Florida area. During those days most sprinkler companies used those 3.0K low flow heads and had ¾" lines, 1" mains, and 1-1/4" risers while spacing those babies out at least 16' x 16' and at 20' x 20' at least half the time. (Trust me, I know-I was one of them, lol!) For the single head, single room areas I am not worried but in the multi-head compartments I am worried as all get out. I know that Tyco issued a "compatibility chart" that listed the current LFII as a "principal replacement" for the old Optima series but that is a bit of a vague stretch to assume that settles things.... NFPA really needs to address this-either in a future standard of 13R or at least a white paper or a formal interpretation.... Sean Lockyer Project Designer 4617 Parkbreeze Court Cell 386-279-1197 Orlando, Florida 32808 [email protected] <mailto:[email protected]> Phone: 407-816-9101 www.AITLifeSafety.com <http://www.aitlifesafety.com/> Fax: 407-816-9104 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20130109/c96d3b02/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 8903 bytes Desc: image001.jpg URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20130109/c96d3b02/attachment.jpg> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
