Quick question. I have an ESFR application and the roof structure is made out 
of concrete tee's, 24" deep from inside face to bottom of stem. Looking over 
the cut sheet for the Tyco ESFR-25 Pendent it states that any solid member over 
12" deep you need to install sprinklers in each channel formed by the 
structural members. When looking at the Viking ESFR VK510 (25.2K) I don't see 
those same parameters so I guess I would then go back to NFPA-13 (2013) and 
install per 8.12.4.1.3 correct?

Brian Harris, CET
BVS Systems Inc.
Design Manager
bvssystemsinc.com<http://bvssystemsinc.com/>
Phone: 704.896.9989
Fax: 704.896.1935

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