My personal take on this is the time to operate has always assumed that 13 and the 5 Min. limit referred to a water motor gong device, and 72 referred to any electrical device I.E. flow switch or pressure switch. Water motor gongs just seem to take longer to activate, and require a fairly steady flow. Most flow switches are soo-oo-oo sensitive that they respond to surges so often they need to be retarded 30-60 seconds to ensure that it is an actual head going off.
Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
