Tony, (4) is more specific so it takes precedent over (5).
Barry Clarke Summerland, B.C. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of A.P.Silva Sent: October 17, 2010 10:02 AM To: [email protected] Subject: RE: Domestic Supply Thanks for the reply. The building code I need to comply with is a little bit different. Under the main heading of "Automatic Sprinkler Systems" the following sentences are given: (1) Except as permitted by Sentence (2), (3) and (4), an automatic sprinkler system shall be designed, constructed, installed and tested in conformance with NFPA 13, "Installation of Sprinkler Systems". (2) .... (3) .... (4) If a building contains fewer than 9 sprinklers, the water supply for these sprinklers is permitted to be supplied from the domestic water system for the building provided the required flow for the sprinklers can be met by the domestic system. (5) If a water supply serves both an automatic sprinkler system and a system serving other equipment, control valves shall be provided so that either system can be shut off independently. Sentence (2) & (3) pertain to the application of 13R and 13D. My question is more to do with building code interpretation rather than technical. Won't sentence (5) supercede sentence (4) and also require separate control valve for both sprinklers and domestic supply? Or due to sentence (4), will the domestic supply be not considered "a system serving other equipment" as given on sentence (5)? I realize sentence (4) does not make sense if sentence (5) requires separate control valves for both "fewer than 9 sprinklers" and "9 and over sprinklers". But I would also like opinions of others. Tony -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: October 15, 2010 4:12 PM To: [email protected] Subject: Re: Domestic Supply look at IBC 903.3.5.1: No more than 20 sprinklers AND you still have to verify discharge with hydraulic calculations. NFPA 13 also touches the subject and effectively says apply portions of 13 as required by the AHJ. 903.4 identifies that monitoring is NOT required. Roland On Oct 15, 2010, at 2:58 PM, A.P.Silva wrote: > > Local by-laws require the locker room and garbage room of a > residential building to be sprinklered. So about 9 heads required. The > architect wants sprinkler system to be connected to the domestic cold > water line. I know it's not a good idea due to non-fire valves, water > meters and alarm requirements. Pro's and con's? Any specific code > section prohibiting it? > Thanks, > > Tony > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.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 [email protected] http://fireball.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 [email protected] http://fireball.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 [email protected] http://fireball.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)
