When we have had this in the past, I have just used the 0.2 listing of
the head and calc the 2500 sq ft. I think you have to meet the minimum
listing of the head for your density and I don't believe you can
extrapolate. Since the 0.15 density is not adequate, I have always had
to go up to the 0.2 listing of the head. More water and bigger pipe.
On 10/20/2011 10:46 AM, Brian Harris wrote:
I'm having a brain cramp and could use some help. I'm working on a retail
store and the engineer has called for Tyco EC-11 heads with a .18/2500
density. I realize the .18/2500 falls on the OH-2 curve but the cut sheet
for the head is rated at .20/1500 for OH-2. How would you go about designing
to these specs?
Brian Harris, CET
First Defense Fire Protection
11957 Ramah Church Road
Huntersville, NC 28078
Phone: 704.948.3506
Fax: 704.948.3507
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