The EC and QR both have fast response elements. Match the elements and you are good. That is what we were directed to do many years ago on a project that had EC and ESFR adjacent with no draft curtain separation.
Please rate our customer service<https://survey.medallia.com/?emailsignature&fc=3539&bg=Fire%20and%20Fabrication> Travis Mack, RME-G, COC, SET Senior Engineering Manager MFP Design 480-505-9271 ext. 700 C: 480-272-2471 [email protected]<mailto:[email protected]> [email protected] www.mfpdesign.com<http://www.mfpdesign.com> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> From: Fpdcdesign <[email protected]> Sent: Tuesday, September 27, 2022 10:04 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Adding sprinklers to system with mixed SR/QR listing Compartment does not apply here. The conclusion I and coming to is that we need to closely match the RTI of the new sprinklers to the RTI of the EC sprinkler, regardless of how the latter is listed. On Sep 27, 2022 at 8:15 AM, <Sean Conlin<mailto:[email protected]>> wrote: 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]<mailto:[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<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to [email protected]<mailto:[email protected]> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to [email protected]<mailto:[email protected]>
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