You are undoubtedly correct. 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 Steve Leyton Sent: Wednesday, January 20, 2010 1:47 PM To: [email protected] Subject: RE: exterior heads, interior calcs Greg: If I don't have to concurrently flow sprinklers above and below a duct or other obstruction that's within the same compartment (22.4.4.6.3), why would I have to or want to include sprinklers that are outside of the building, unless you were calculating a single row of sprinklers under a soffit or mansard or similar condition? Steve Leyton Protection Design & Consulting San Diego, CA -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Wednesday, January 20, 2010 11:39 AM To: [email protected] Subject: exterior heads, interior calcs 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] > (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] (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) __________ Information from ESET NOD32 Antivirus, version of virus signature database 4791 (20100120) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 4791 (20100120) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com _______________________________________________ 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)
