If the EC sprinkler used is listed as QR in its current application, then the new area of work has to use QR unless the area of work is located in a separate compartment. Check the definition of compartment to see if the soffit you mention can work for you.
Regards, Sean W Conlin Demand Sprinkler Design Inc. 37 Summerfield Crescent Brampton, ON L6X 4K4 P: 905 216-0922 On Sep 26, 2022, at 12:42 PM, Fpdcdesign <[email protected]> wrote: I am working on to an addition to an existing system that has Tyco EC-11 pendent sprinklers. According to the data sheet, these sprinklers may be QR in some circumstances and SR in others. The addition I am working on will be using standard coverage sprinklers. The space is open to the area with the EC-11 sprinklers but separated by a deep soffit. The design of the EC-11 is such that they are considered standard response by the listing. The obvious question is QR or SR for the new sprinklers? I am assuming QR because that is closer to the response time of the EC-11s despite the SR listing, but I am being questioned on this. Thoughts? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080<tel:860-535-2080> (ofc) 860-554-7054<tel:860-554-7054> (fax) 860-608-4559<tel:860-608-4559> (cell) _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
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