That section would also seem to indicate that using QR would be OK, don’t you think? So, maybe you can’t go wrong either way in this scenario.
-Kyle M From: Matthew J Willis <ma...@rapidfireinc.com> Sent: Tuesday, September 27, 2022 12:05 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [EXTERNAL] [Sprinklerforum] Re: Adding sprinklers to system with mixed SR/QR listing Man, 9.4.3.5 (19) seems to indicate, “We don’t care”. I think you would be fine and in line with SR. R/ Matt Matthew J. Willis, CWBSP Design Manager Rapid Fire Protection, Inc. 600 E. Carlson St. Suite AB | Cheyenne, WY. 82009 Office (307) 426-4077 ext. 404 Direct (307) 316-6630 Cell (605) 391-2733 [cid:image001.png@01D8D274.774DB410] From: Fpdcdesign <fpdcdes...@gmail.com<mailto:fpdcdes...@gmail.com>> Sent: Tuesday, September 27, 2022 12:55 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Subject: [Sprinklerforum] Re: Adding sprinklers to system with mixed SR/QR listing The EC-11 spaced at 14x14 is QR; spaced at 16x16 is SR. The center of the space is 16x16 and the perimeter is smaller On Sep 27, 2022 at 2:40 PM, <Matthew J Willis<mailto:ma...@rapidfireinc.com>> wrote: Then your answer is SR. You indicated below they EC-11’s were installed as SR. SR is permitted in OH II. R/ Matt Matthew J. Willis, CWBSP Design Manager Rapid Fire Protection, Inc. 600 E. Carlson St. Suite AB | Cheyenne, WY. 82009 Office (307) 426-4077 ext. 404 Direct (307) 316-6630 Cell (605) 391-2733 [cid:image001.png@01D8D274.774DB410] From: Fpdcdesign <fpdcdes...@gmail.com<mailto:fpdcdes...@gmail.com>> Sent: Tuesday, September 27, 2022 12:35 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Subject: [Sprinklerforum] Re: Adding sprinklers to system with mixed SR/QR listing This is a retail space. We have new sprinklers inside a soffit area and below part of the soffit. It does not qualify as a compartment because the openings are greater than 8 ft (about 30 ft). If a fire occurred inside the soffit area, heat would be contained to that area. However, if a fire occurred under the soffit, there could be sufficient heat each side to open sprinklers. 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) On Sep 27, 2022 at 1:59 PM, <Matthew J Willis<mailto:ma...@rapidfireinc.com>> wrote: Todd, What are you protecting? The wording for extending one hazard into another is a sufficient heat barrier. You may be chasing rabbits. R/ Matt Matthew J. Willis, CWBSP Design Manager Rapid Fire Protection, Inc. 600 E. Carlson St. Suite AB | Cheyenne, WY. 82009 Office (307) 426-4077 ext. 404 Direct (307) 316-6630 Cell (605) 391-2733 [cid:image001.png@01D8D274.774DB410] From: Fpdcdesign <fpdcdes...@gmail.com<mailto:fpdcdes...@gmail.com>> Sent: Tuesday, September 27, 2022 11:04 AM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> 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:scon...@demandsprinklerdesign.ca>> 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 <fpdcdes...@gmail.com<mailto:fpdcdes...@gmail.com>> 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://urldefense.com/v3/__https:/lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org__;!!Ba8_KKAT!NidCk_ZnxLD74-Q5-g6n_oJgW1_FFQ4jx0NhR3uLVSN_9MlERdlMunXj7AHiBL7MEbdITiioLg-NT-tCduiHag$> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://urldefense.com/v3/__https:/lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org__;!!Ba8_KKAT!NidCk_ZnxLD74-Q5-g6n_oJgW1_FFQ4jx0NhR3uLVSN_9MlERdlMunXj7AHiBL7MEbdITiioLg-NT-tCduiHag$> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://urldefense.com/v3/__https:/lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org__;!!Ba8_KKAT!NidCk_ZnxLD74-Q5-g6n_oJgW1_FFQ4jx0NhR3uLVSN_9MlERdlMunXj7AHiBL7MEbdITiioLg-NT-tCduiHag$> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://urldefense.com/v3/__https:/lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org__;!!Ba8_KKAT!NidCk_ZnxLD74-Q5-g6n_oJgW1_FFQ4jx0NhR3uLVSN_9MlERdlMunXj7AHiBL7MEbdITiioLg-NT-tCduiHag$> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org>
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