They were cost effective in that you utilized a single piping network to accomplish the work of two systems. It’s a closed loop hydronic system with sprinklers.
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-boun...@lists.firesprinkler.org] On Behalf Of rongreenman . Sent: Monday, October 31, 2016 1:37 PM To: sprinklerforum@lists.firesprinkler.org Subject: Re: One weird cross connected system [EXTERNAL] It was in 13 for a while Bill. I have 13s going back to seventies but not with readily available today. Bronze, brass, copper (heat exchangers), black steel and galvanized steel, all with warm, oxygenated, municipal water moving thru them. Doesn't sound like a good combination. On Mon, Oct 31, 2016 at 10:28 AM, Bill Brooks <bill.bro...@brooksfpe.com<mailto:bill.bro...@brooksfpe.com>> wrote: Does this sound familiar?? I remember this from my days at GSA in the late 1970’s. It was presented by Mr. Meckler as a sprinkler system approach for the old post office building in D.C. (currently Trump’s hotel). We rejected the idea for a number of reasons - we couldn’t figure out how it would save money or work reliably. Lots of moving parts. Also incorporated into NFPA 13 at one point I think. 1985 edition, “Automatic sprinkler systems with nonfire protection connections”. Bill Brooks Patent number: 4286667 Abstract: Flow control and fire detection and location apparatus is disclosed. The apparatus is used with a system which circulates heated or cooled water for use in connection with the heating and air conditioning system of a building and to sprinkler heads. The apparatus comprises a short length of tubing or pipe connected downstream of a sprinkler connection to provide a bypass for flow of heated or cooled water around a segment of the return line from heating or cooling apparatus to a standpipe through which the water is returned to an equipment room. There are check valves to prevent flow of water through the bypass toward the heating or cooling apparatus, and to prevent water flow in the bypassed segment from the heating or cooling apparatus toward the standpipe. There is also a flow sensor in the bypassed segment. In normal operation, water from the heating or cooling apparatus flows through the bypass line to the standpipe and back to the equipment room for heating or cooling and recirculation. Type: Grant Filed: February 27, 1979 Date of Patent: September 1, 1981 Assignee: Gershon Meckler Associates, P.C. Inventors: Donald G. Westenhofer, Gershon Meckler From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Todd Williams Sent: Monday, October 31, 2016 6:11 AM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: One weird cross connected system [https://secure-web.cisco.com/1T28d22z8Jv5xkIhQ_RH9V1EqsWQDUbJq1fo7xZlB4aTCQn-_GU8bpxgslrBO_Ug70ih8MbmOnYMNCljxK9ZgljqwPFKP57iOpNIo3mQU7XiEQRgqg5d8Kn4FDFj-e0Sf70acGLgJ3PSHhjDiz6dui33XMxIJG4GZVy0nujxwX-g_VG9x7-RSbmic6AzRFX-pTjf8xSjNZnuxpmv1qOrrvPZY1dcuzOGUwYr6h4cXN7WCK4HHa2M7s5lnvS26UXYhECbTp6Nl2cVnDpjTpcDPOE1xYYk6WuDmat_Gly5xObs3ZriwKO2W9F3GLk_TiMfMAjSKRpX32XMMtEU3VfoPwmnxmiiCmxCvgWxzW1JKogfLZEsCe0sMTwvt00I46prcLTrNzRb-fZHocyUif9BKUytJFHLyH_06MWT7vv3pyzYSHtIYvpa9me5Nc7pUOQsFNu4jCiNRDfVLc8Z5KLAsHOVUZU6_wTukSGALDCCtZoo/https%3A%2F%2Ftr.cloudmagic.com%2Fh%2Fv6%2Femailtag%2Ftag%2F1477908647%2F2d4c4b9cd9f303a04c4d9c24d32f6571%2Fecdd64c309bb34b23eb65c654267bfff%2F1fefe822716bbbd7efa6f3a027987f92%2F9efab2399c7c560b34de477b9aa0a465%2Fufo.gif] 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<tel:860-535-2080> (ofc) 860-608-4559<tel:860-608-4559> (cell) via Newton Mail<https://secure-web.cisco.com/1kiPrUXOf1V4D1Gq5supcUHGyG5OGMpvLTivzKyNu5nH69yRGCim2duAvQ4_1PI1BLa9iTmqr6YOzIw-5ZQSOtYtGEnbDkFDWg0VQUQZn7xAjJVe4qvJfi4Z3uF0HXS0WVYx6WcXdxo6k98H5Nc7LbauezBQw8LCPYjDU9PyEKcrnSQD5padYPnoVZTXmFnqa8E9Q3jPo0ieCQaNVtcCHauJ_ZgkHdexfconGIBrGi3AeL9XOR82Je-79Siz19xNkG9BxdflneEPK6LJf-aec_oDbfbq0Ce1aqYeIgESVbX6p-kxCEOxZwK33owR-b4grClb8tmZlrVc1qiIGXZ4AraJhOjX4u2z-HZve9STHOLXGL-QXn0wTAo_CO25RH8Rm5Oj1zFoygym4ENnTXdn3LZLwzY8nN-t4ujFsp346kuG_9zypu2ZCxQHRB7aT_lhTS1IOsfqvc_B0fVWeS83cPfHz_GM7VqsNhv-LQmq26gE/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<mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org -- Ron Greenman rongreen...@gmail.com<mailto: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
