Here is the language from SR 1129 that Pete was referring to: 14.2.7* Occupancy and Hazard. ESFR sprinklers designed to meet any criteria in Chapter 23 or Chapter 24 shall be permitted to protect light and ordinary hazard occupancies.
*A.14.2.7 It is not the intent of this section to allow ESFR sprinklers to be adjusted to light or ordinary spacing criteria. However, it does allow flexibility for spacing to walls, when walls are added to create light or ordinary hazard areas to existing ESFR systems.14.2.7.1 When ESFR sprinklers are used for the protection of light or ordinary hazard occupancies, 14.2.7.1.1 through 14.2.7.1.3 shall be permitted.14.2.7.1.1 In light hazard occupancies, the protection area limitations of ESFR sprinklers shall be permitted to meet the protection area requirements of Table 10.2.4.2.1(a).14.2.7.1.2 In light and ordinary hazard occupancies, the sprinkler spacing of ESFR sprinklers shall be permitted to meet the sprinkler spacing requirements of 10.2.5.14.2.7.1.3 In light and ordinary hazard occupancies, the obstruction to the sprinkler discharge pattern of ESFR sprinklers shall be permitted to meet the obstruction discharge requirements of 10.2.7.2.* Kevin Hall, M.Eng, P.E., CWBSP, MSFPE *Coordinator, Engineering and Technical Services* *American Fire Sprinkler Association* p: 214-349-5971 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Be a Member, Get a Member* We’re introducing many new programs to help meet your team’s business needs. AFSA is offering a six-month trial membership for contractors and a 12-month trial membership for municipal AHJs. Let’s help potential members see what they’re missing! Current members who recruit a new contractor member will receive a $100 gift card and the new member gets a free webinar. Let’s grow stronger together! Join AFSA <http://www.firesprinkler.org/join>. On Mon, Feb 1, 2021 at 2:50 PM Pete Schwab via Sprinklerforum < [email protected]> wrote: > The 2022 edition should have language that allows this unless it gets > overturned by a CAM. See NFPA 13 2nd draft 14.2.7 (Second Revision 1129). > > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Art Tiroly > via Sprinklerforum > Sent: Monday, February 1, 2021 1:34 PM > To: [email protected] > Cc: Art Tiroly <[email protected]> > Subject: RE: ESFR & Obstruction in Light Hazard > > I had a similar problem but worked it out with AHJ and he allowed the > obstructions with the ESFR's. > > Art Tiroly > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] > On Behalf Of James Crawford via Sprinklerforum > Sent: Monday, February 01, 2021 12:18 PM > To: [email protected]<mailto: > [email protected]> > Cc: James Crawford > Subject: ESFR & Obstruction in Light Hazard > > WE have a warehouse space that is protected with ESFR sprinkler heads, the > space is being used by an indoor tennis club. > > The want to add some additional HVAC and some of the new ducting would > obstruct the ESFR sprinkler heads. > > My question is do we still need to work to the same obstruction rules for > this application, fire load is minimal we would be delivering 1200gpm > rather > then the 150gpm required, just seem like overkill. > > Opinions please > > Thank You > > James Crawford > Phaser Fire Protection Ltd. > Phone 604-888-0318 > Cel: 604-790-0938 > Email [email protected]<mailto:[email protected]<mailto: > [email protected]%3cmailto:[email protected]>> > Web: www.phaserfire.ca<http://www.phaserfire.ca><http://www.phaserfire.ca< > http://www.phaserfire.ca>> > > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto: > [email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > < > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus<https://www.avast.com/antivirus> > > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto: > [email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > < > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
