Right. Circulating water in the heating/cooling portion that uses the same piping. How did fire pumps come up?
On Mon, Oct 31, 2016 at 10:27 AM, <craig.pr...@ch2m.com> wrote: > There is no consumption of water, hence no reason for the fire pump to be > engaged. The system circulates water throughout. NFPA 13, 2016, 3.4.2. > > > > There is still mention of these systems in NFPA 13, 2016, “circulating > Closed Loop Systems, 25.3. See Figure 23.1.5(a) for a sample layout of > such a system. > > > > > *Craig L. Prahl* > Fire Protection Group Lead/SME > *CH2M* > 200 Verdae Blvd. > Greenville, SC 29607 > Direct - 864.920.7540 > > Fax - 864.920.7129 > > CH2MHILL Extension 77540 > craig.pr...@ch2m.com > > > > *From:* Sprinklerforum [mailto:sprinklerforum-bounces@lists.firesprinkler. > org] *On Behalf Of *rongreenman . > *Sent:* Monday, October 31, 2016 12:38 PM > *To:* sprinklerforum@lists.firesprinkler.org > *Subject:* Re: One weird cross connected system [EXTERNAL] > > > > Also known as tri-water. See if there are heat exchangers off the the > mains or cross mains. > > > > On Mon, Oct 31, 2016 at 4:24 AM, Richard Carr <rc...@coxfire.com> wrote: > > Sounds like a multi-use system, they were common in the 80’s. > > > > Richard Carr, SET > > Branch Manager > > Cox Fire Protection, Inc > > 6555 Grace Lane. > > Jacksonville, Fl. 32205 > > rc...@coxfire.com > > 904-781-8227 > > > > *From:* Sprinklerforum [mailto:sprinklerforum-bounces@lists.firesprinkler. > org] *On Behalf Of *Todd Williams > *Sent:* Monday, October 31, 2016 6:11 AM > *To:* sprinklerforum@lists.firesprinkler.org > *Subject:* One weird cross connected system > > > > I was at a location last Friday that had one of the strangest systems I > have seen. This is a 3 story office/retail space with underground parking > garages. The upper floors are wet and the garages dry. The sprinkler system > on the upper floor has several connections to feed mechanical equipment > (VAV boxes, etc.). This has been in place since the mid 1980s and the local > AHJ has made no comment. I'm sure this is not legal and I have no idea why > they do not get false alarms or why the fire pump does not go off on a > regular basis. Has anybody run into something like this before? > > > > Todd G Williams, PE > > Fire Protection Design/Consulting > > Stonington, CT > > 860-535-2080 (ofc) > > 860-608-4559 (cell) > > > > via Newton Mail > <https://secure-web.cisco.com/1v3_4hFDpGlMWt5xf5iCsvonf97N24gZPNzMeJaqzbiS2LXqAv8jp9feuhImt_ENnKkmOKd7d332d-hmXaAkcALwqLll2sQLtMGzZqopZbUuiKFGs9gwORDw6_oJwYO39iSK43RSlc-CVxOGiHx5A4gyZv0cju_buj6uRKdH-s_HLToqyVFDWvTVsvugtyEx6VZkG1-GYxTnTbhg4qD5X0mO3yYlF714mkFLCa9StB7hNa7QJ7MbXZjUGaDlw7_zfRDx-fkI6ykG_5Wo3YUlDigbRrfJJifJGwO8zM2x24KEoOoAxl0KTcpvPMnrHSVACAn-8sKPyEeBzvxurEaK_-DZW06MZFThWoddmxtXxtVcEOnNbP4uyUIhxdsuPgzRuOvBzrrDppdY9jmCCf7RNbVrOKrOTVFsFWXOocOhmtoZKDHMFc-tldwILFV5eJaXH_4scJ2EcIScbip3qV52kQw/https%3A%2F%2Fcloudmagic.com%2Fk%2Fd%2Fmailapp%3Fct%3Dti%26cv%3D9.1.28%26pv%3D9.3.5%26source%3Demail_footer_2> > > > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > > > > > -- > > Ron Greenman > > > rongreen...@gmail.com > > 253.576.9700 > > > > The Universe is monstrously indifferent to the presence of man. -Werner > Herzog, screenwriter, film director, author, actor and opera > director (1942-) > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > -- Ron Greenman rongreen...@gmail.com 253.576.9700 The Universe is monstrously indifferent to the presence of man. -Werner Herzog, screenwriter, film director, author, actor and opera director (1942-)
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