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
