Right or wrong I always reconciled 13 vs. 72 like this. The flow switch must activate within the parameters of 13. 5 minutes. Once the paddle moves and the electrical connection is made 72 takes over and the FA must respond within the parameters of 72. 90 seconds. So in theory 6.5 minutes could pass between opening the inspectors test valve and the alarm signal engaging in the FAP.
Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jim Johnston Sent: Wednesday, July 15, 2009 10:14 AM To: [email protected] Subject: RE: water flow timing NFPA 72 5.11.2 says within 90 seconds. Jim Johnston, P.E. Fire Protection Engineer Inland Fire Protection, Inc 1100 Ahtanum Road Yakima, WA 98903 Phone 509-248-4471 Fax 509-248-1180 [email protected] -----Original Message----- From: Geoff Dyce [mailto:[email protected]] Sent: Wednesday, July 15, 2009 7:55 AM To: [email protected] Subject: water flow timing We are having a discussion regarding time required for water flow notification. One party says on a wet system, there is no particular time requirement. Another party says there is a time limitation. What say you all??? Thanks in advance. Geoffrey H. Dyce Operations Manager/NICET IV DELTA Fire Sprinklers, Inc. A Vetran Owned Small Business Ph: 407-328-3000 ext 143 Fx: 407-575-9991 E-Mail: [email protected] _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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)
