The NFPA 13 committee has made it clear in the 2013 edition that you cannot mix QR and Residential in the same compartment. NFPA 13R also doesn't allow this. The drawback with using the residential sprinklers is that if you have to throw 26 feet, you cannot find an 8.0K with lower starting pressures. All sidewalls are 5.6 or 5.8. Since you mention hotel, you may be better off with all QR. Look at the maximum number of sprinklers in any one room on the floor. Sometimes the room design method will get you a 2 or 3 head design. The door to the hall will almost always be self closing. However if you have a door between the adjacent room... you may have more than a 4 head design.
Pete Schwab ________________________________________ From: [email protected] [[email protected]] On Behalf Of David Canham [[email protected]] Sent: Thursday, June 06, 2013 7:44 PM To: [email protected] Subject: Re: mixed ECQR heads and Res Why not use all residential heads in the rooms? Viking makes a residential sidewall that goes 26 feet (VK460) Dave Canham Fire Systems Solutions Sent from my iPhone On Jun 6, 2013, at 7:07 PM, Greg McGahan <[email protected]> wrote: > What do you do with ONE hotel room in a 13 building that needs a 24' throw > QREC sidewall whil all the rest are res heads........ > > I hate to mix head types, but in order to use the most demanding room rule, > all the heads in that space would have to be QREC not res - correct? > > Thanks, > Greg > > > -- > Greg McGahan > Living Water Fire Protection, LLC <http://www.livingwaterfp.com> > 1160 McKenzie Road > Cantonment, FL 32533 > 850-937-1850 > fax 850-937-1852 > _______________________________________________ > 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
