Are you doing a 3rd party inspection or some sort of risk management/loss prevention analysis? Why not just call the AHJ or installing contractor and ask for approved basis of design?
SL -----Original Message----- From: Sprinklerforum on behalf of firs...@aol.com Sent: Mon 10/5/2015 9:37 AM To: sprinklerforum@lists.firesprinkler.org Subject: Re: Monitoring 13D control valves in California Hi Steve, thanks for responding. Isn't the CBC more restrictive therefore you can't allow something less? This particular system looks like a 13R but they failed to provide electrical for tamper switches. So now they argue it is a 13D serving a building with 5 townhouse's separated by 1 hour construction. My thinking is since it is 5 units, not one or two family dwelling, the exception for electrical monitoring does not apply. Therefore tampers are required. Am I correct? Sent from my iPhone > On Oct 5, 2015, at 8:52 AM, Steve Leyton <st...@protectiondesign.com> wrote: > > It's possible the AHJ has accepted these to be of limited area if the > sub-systems serve less than 20 sprinklers. NFPA offers multiple > solutions for "monitoring", including the locking of valves. Perhaps > the AHJ approved an alternative to electronic supervision. > > Steve L. > > > > > > -----Original Message----- > From: Sprinklerforum > [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of > firs...@aol.com > Sent: Monday, October 05, 2015 7:38 AM > To: sprinklerforum@lists.firesprinkler.org > Subject: Monitoring 13D control valves in California > > The California Building Code requires sprinkler control valves to be > electrically monitored. One of the exceptions is One and Two Family > Dwellings, 13D. > > What if it is a stand alone 13D system? (2" water meter with one DCVA to > a 2" underground, serving a row of 5 town homes with one hour > separations between units. The 2" underground branches off to each unit. > Each unit has it's own flow switch and test valve). > > The exception specifically states for one and two family dwellings > because the control valve is before the domestic service so shutting off > the sprinklers shuts off the domestic therefor it is self monitoring. > The stand alone serving 5 units does not have this valve arrangement > therefore it would require electric monitoring per CBC. > > Am I thinking correctly? According to CBC the two control valves on the > DCVA would need tampers, correct? > > Owen Evans > > Sent from my iPad > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler > .org > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
