Greg, normally the exterior wall is of sufficient construction as to be considered "rated" and thus is a separate "fire area" for the purpose of calculations
On Wed, Jan 20, 2010 at 2:39 PM, Greg McGahan <[email protected]> wrote: > Just curious to all of you who know the stats, etc. > > I have a very unusual shaped remote are due to an unusual shaped building > and or protecting small alcoves for an ice machine, wash down area, small > loading dock, etc. > > Question: How often do sprinklers activate on both the exterior and > interior of a noncombustible building? Is it common? Should they be included > in the interior calcs? > > Doesn't kill us either way, but I am curious. > > Thanks, > > Greg McGahan > Operations Manager > > Living Water Fire Protection > 1160 McKenzie Road > P.O. Box 877 > Cantonment, Florida 32533 > (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 > [email protected] > > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of Ron Greenman > Sent: Tuesday, January 19, 2010 9:34 PM > To: [email protected] > Subject: Re: Antifreeze Backflow Prevention > > J. > > I believe you need the loop per 13. The testable backflow device, DCVA > or RPBA, would be a health code requirement as administered by the > cross connection specialist for the water purveyor. 13 would then > allow deletion of the loop but require the expansion tank. > > On Tue, Jan 19, 2010 at 6:22 PM, Jay Jay Blocker > <[email protected]> wrote: > > Using NFPA 13 (2007 thus the reason for my question) I cannot find > anything saying that using a swing check valve at the end of a wet system > and transitioning to a glycol system is allowed. Basically 1 section of a > parking garage is exposed to cold temps when the garage door opens. Door > failed to shut and several freeze breaks happened. The question has been > asked if adding a separate control valve before a single check valve at the > end of the wet system and turning it into antifreeze (without a rpz or a > loop) was an option. I don't see where this is an option by > 7.6 anywhere. I feel like I'm missing something here. Are any of the older > editions of 13 saying this is allowed or am I looking in the wrong spot? > > > > J. Blocker > > EFPS > > (303) 353-9712 > > > > > > > > _______________________________________________ > > 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]<to%[email protected]> > > (Put the word unsubscribe in the subject field) > > > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > > Member: > SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM > _______________________________________________ > 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]<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]<to%[email protected]> > (Put the word unsubscribe in the subject field) > -- Tom Poisal _______________________________________________ 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)
