With just one cup of joe so far, I can only think that a false alarm due to the compressibility of the air vrs water may result in the next high-pressure surge encountered- IF it is of sufficient force to move the paddle for the necessary time to go past the retard setting.
I wouldn't lose any sleep over it. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Forest Wilson Sent: Tuesday, October 27, 2009 10:35 PM To: [email protected] Subject: Re: Homeowner needs advice There may not be a valve they can open to bleed the air. If the Inspectors Test is at the Riser, then they do not have that option. I wouldn't worry about the air. The manufacturer just doesn't want their piping being used as an air line. Forest Wilson Project Manager Cherokee Fire Protection Co. 3195 Dayton Xenia Rd Ste 900 Dayton OH 45434 ph: 937-376-2333 fx: 614-455-4324 cell: 937-307-5647 . Visit our blog: www.cherokee-fire.blogspot.com NOTICE: The information contained in this email is intended to be solely for the use of the named individual or entity to which it is directed and may contain information that is privileged or otherwise confidential. It is not intended for transmission to, or receipt by, anyone other than the named addressee (or a person authorized to deliver it to the named addressee). It should not be copied or forwarded to any unauthorized persons. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email or by calling Cherokee Fire Protection Co. at 888-347-3079 toll free. -----Original Message----- From: Ed Vining <[email protected]> To: [email protected] Sent: Tue, 27 Oct 2009 18:46:57 -0700 Subject: Re: Homeowner needs advice I don't know if your system was installed to the requirements of NFPA 13D (For single family homes, or 13R for some other residential structures. If Iit was to 13D, I don"t no applicable language. If it is to 15R, the following from the latest edition: A.10.2.2 <http://nfpacodesonline.org/NFPA/a/c.html/nfpa_13r/annex_explanatory_mate rial/10_2_2/53> piping, such as listed CPVC, or flexible piping, the sprinkler system should be filled with water. The *air* should be bled from the highest and farthest sprinklers before the test pressure is applied. This is from the annex (appendix to us ordinary folks), and is a recommendation, not a requirement. In any event, the reason for keeping air under pressure out of the piping is that if it bursts, it can produce projectiles. If the pipe is full of water, and no air, if the pipe bursts there are no projectiles. Of itself, air in the pipes will not cause it to break. Ed Vining On Tue, Oct 27, 2009 at 4:41 PM, <[email protected]> wrote: > I'm not sure how this email forum works. I'm sending this out blind > hoping one of you pros has some advice for me. > > I am a homeowner in a three-story townhouse. Recently, a company did > some minor modification to our fire sprinkler system - moving a > couple of heads for a basement remodel. When they were done with the > pipe and heads, they simply re-pressurized the system without > bleeding out the air trapped in the lines. From what little I know > about it, I thought this step was very important to eliminate any > pressurize air in the system and preventing dangerous surge > pressures. It says so in big bold type on the product spec sheet for > the CPVC pipe. When I asked the installer he said they don't need to > bleed it, but couldn't explain why not. > > Before I go raising a stink about it, I want to know if your forum > agrees that it's not necessary; or do I need to pester them into > doing it correctly. > > Thanks. > _______________________________________________ > 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%3asprinklerforum-requ...@f iresprinkler.org> > (Put the word unsubscribe in the subject field) > -- Ed Vining 4819 John Muir Rd Martinez CA 94553 925-228-8792 _______________________________________________ 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)
