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:[email protected])> 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 > > > > > > > > > > > > > > > > > > > From: Fpdcdesign <[email protected]> > Sent: Tuesday, September 27, 2022 11:04 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 > > > To unsubscribe send an email to > > > [email protected] > > > (mailto:[email protected]) > > > > > > > > > > > > > > > > > _________________________________________________________ SprinklerForum > > mailing list: > > 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 > To unsubscribe send an email to [email protected] >
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