Is that the general consensus? I've never really thought of residential heads being far superior to commercial QR heads. I mean, we use residential sprinklers all the time, but primarily because they are advantageous to us in the types of buildings we are installing (4-head calc, better extended coverage options, etc.). I guess I've always considered a residential system to be more lenient (i.e. less water flow and pressure required) and thus a "lower" level of protection than your standard light hazard system.
If residential heads are actually providing a "higher" level of protection, then why is it that quick response commercial heads can be used in both residential and commercial occupancies, but that residential heads may only be used in residential occupancies? -Kyle M -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, March 16, 2018 11:17 AM To: [email protected] Subject: Re: [EXTERNAL] RE: Existing 3/4" outlets Kyle, if there is even a whiff of Residential about the occupancy the listed res should be used because, along with the quick response, res heads have a superior pattern, wetting not only the floor but high up on the walls too (curtains, bookshelves, the curio cabinets full of Russian Shadow Boxes, etc.) Brad. Quoting "Kyle.Montgomery" <[email protected]>: > Do you NEED residential heads, or can you just use any quick-response > head? Even if it over-discharges, I wouldn't expect that to be a > problem for the calcs since it was originally designed for OH 2. > > Why do you even need to change the heads? Are the existing K-8 heads > standard response? > > -Kyle M > > -----Original Message----- > From: Sprinklerforum > [mailto:[email protected]] On Behalf Of > Dewayne Martinez > Sent: Friday, March 16, 2018 9:46 AM > To: [email protected] > Cc: Dewayne Martinez <[email protected]> > Subject: [EXTERNAL] RE: Existing 3/4" outlets > > That’s a thought.....The problem is the original shell with 3/4" > uprights with a pipe centerline of 12" below deck. No residential > uprights in 3/4" > and I thought residential pendant heads are not listed to be > installed exposed? > > Dewayne Martinez > Fire Protection Design Manager > > TOTAL Mechanical > Building Integrity > > W234 N2830 Paul Rd. > Pewaukee, WI 53072 > [email protected] > Ph: 262-522-7110 > Cell: 414-406-5208 > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.total-2Dmechan > ical.com_&d=DwIGaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3b > n8etxB7nLN8OBJwQd9A&m=QgdEeClG--ixhAlrzYXkB9w1GVgwdnHkcfh2xsZlbVU&s=m9 > niRfDrj2QzVwiLzgS0z9PaTLR67E2v662JDvbdOzA&e= > > > -----Original Message----- > From: Sprinklerforum > <[email protected]> On Behalf Of Mike B > Morey > Sent: Friday, March 16, 2018 9:57 AM > To: [email protected] > Subject: Re: Existing 3/4" outlets > > You say bushing, I say sprinkler head extension less than 2" per 6.4.8? > > > Mike Morey > CFPS 3229 • NICET S.E.T. 123677 > Project Manager • Fire Protection Group Shambaugh & Son, LP an EMCOR > Company > 7614 Opportunity Drive • Fort Wayne, IN • 46825 direct 260.487.7824 / > cell > 260.417.0625 / fax 260.487.7991 email [email protected] > > > > > > > > From: Dewayne Martinez <[email protected]> > To: [email protected] > Cc: Dewayne Martinez <[email protected]> > Date: 03/15/2018 06:43 PM > Subject: Existing 3/4" outlets > Sent by: "Sprinklerforum" > <[email protected]> > > > > > BE ADVISED - This email originated outside EMCOR. > > > I have a project that was originally designed as a OH II space that > will now be turned into a light hazard residential exposed “loft” > space. The existing ¾” K8.0 sprinklers over discharge like crazy. > Can I bush the 3/4'” > outlets down to ½” to use K5.6 sprinklers? If not any suggestions? > > > > Dewayne Martinez > > Fire Protection Design Manager > > > > *TOTAL* *Mechanical* > > *Building* *Integrity* > > > W234 N2830 Paul Rd. > Pewaukee, WI 53072 > > [email protected] > > Ph: 262-522-7110 > > Cell: 414-406-5208 > > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.total-2Dmechan > ical.com_&d=DwIGaQ&c=GKdB6-XpYq_0W-WluyVHtw&r=z4t2hrRBa-JsS06T4X_uuYOS > JoclVWgSRO8Nq6TDdsg&m=B1gjGjTnf7-Ej9T8PcnuSRVFemMqu2U1aEPDQxrOPHo&s=Ru > Z6bsVtOYaDGrG_UfPQiu-9SlgO6obtB79V-_fi8X8&e= > > > [image: Consecutive Honors 2012-2017] > -------------- next part -------------- An HTML attachment was > scrubbed... > URL: < > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkle > r.org_private.cgi_sprinklerforum-2Dfiresprinkler.org_attachments_20180 > 315_41e14879_attachment.html&d=DwIGaQ&c=GKdB6-XpYq_0W-WluyVHtw&r=z4t2h > rRBa-JsS06T4X_uuYOSJoclVWgSRO8Nq6TDdsg&m=B1gjGjTnf7-Ej9T8PcnuSRVFemMqu > 2U1aEPDQxrOPHo&s=6cdt-sQIacSh7qM78kH-MF2ygexAPpze5AppEvB6NWY&e= >> > -------------- next part -------------- A non-text attachment was > scrubbed... > Name: image001.jpg > Type: image/jpeg > Size: 8202 bytes > Desc: not available > URL: < > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkle > r.org_private.cgi_sprinklerforum-2Dfiresprinkler.org_attachments_20180 > 315_41e14879_attachment.jpg&d=DwIGaQ&c=GKdB6-XpYq_0W-WluyVHtw&r=z4t2hr > RBa-JsS06T4X_uuYOSJoclVWgSRO8Nq6TDdsg&m=B1gjGjTnf7-Ej9T8PcnuSRVFemMqu2 > U1aEPDQxrOPHo&s=b2vPc9rxHD40k3ZkHc9JYKjhqeCngJKY6_kzQNoy5EM&e= >> > _______________________________________________ > Sprinklerforum mailing list > [email protected] > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkle > r.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwIGaQ&c=GKdB6 > -XpYq_0W-WluyVHtw&r=z4t2hrRBa-JsS06T4X_uuYOSJoclVWgSRO8Nq6TDdsg&m=B1gj > GjTnf7-Ej9T8PcnuSRVFemMqu2U1aEPDQxrOPHo&s=eLw-8Ymu6_DIM_XseIvcGIrkA6vC > iJ168TukvdOr5j4&e= > > > > > This message is for the named person's use only. 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