The EC sprinklers are listed at a specific density, so you can't change that.  
You can calculate 2000 sq ft, but it will still be the minimum flow / pressure 
at a given spacing per the data sheet.  Also, they are not listed for storage.  
So, they can not be used for storage applications.


Travis Mack, SET
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181 N. Arroyo Grande Blvd. #105 I Henderson, NV 89074
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From: Dewayne Martinez <[email protected]>
Sent: Wednesday, February 15, 2023 2:46 PM
To: [email protected]
Cc: Dewayne Martinez <[email protected]>
Subject: [Sprinklerforum] Can OH II listed EC sprinklers be used for storage 
application?

I have a customer that wants to store non-encapsulated ,Class II on 
single/double row racks with 8ft aisles. to 15ft high.  When I work out the 
numbers and apply Fig  16.2.1.3.4.1 (NFPA 13, 2013ed)  I get a density of 
0.189/2000 for high temperature sprinklers. The original system was designed 
using extended coverage K14 sprinklers, 18x18 at  OH 2 density.  If I go up the 
OH2 curve to 2000 sq ft I get a 0.19/2000 density.  Can I pick up the 
additional EC sprinklers for the 2000 sq ft at the required EHP for the OH 2 
spacing and call it good if the calcs work?

Thank you,

Dewayne Martinez
Fire Protection Design Manager

TOTAL Mechanical
Building Integrity

W234 N2830 Paul Rd.
Pewaukee, WI  53072
[email protected]<mailto:[email protected]>
Ph:  262-522-7110
Cell: 414-406-5208
http://www.total-mechanical.com/

[cid:[email protected]]

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