Egoistically, I have to admit a twinge of regret when I read that. I'm assuming that the reference is to a "Tri-Water" design, which came and went pretty quickly from about 1984-1988 or so. Basically, it's a combo HVAC supply/return and fire sprinkler system that utilizes two sprinkler mains for the supply/return to the cooling tower and then alternating supply/return branch lines off of each main that allow heat pumps to be place between pairs and connected via flex connectors with throttling valves on both sides.
The technology had at least two inherent flaws, one is that the patent-holder specified a throttling valve that wasn't really suited to the application - as I recall it was a valve that Nibco would have otherwise recommended for either full open or closed tight service and the heat pump flow rates were infinitely variable. The other problem is that in order to do a sprinkler T.I. you have to shut down the entire system, and all other tenants in the same system zone (or floor) lose their heat/AC while the system's down. Thus began the ritual of night-work only on Tri-Water systems. I mentioned my regrets; this is because I thought I had designed the only high-rise Tri-Water system anywhere. There are twin 20-story towers here in San Diego that I did in about 1986 and, until today, I was not aware of any others ... does anyone know whether or not they're still in business? Steve Leyton PROTECTION DESIGN & CONSULTING -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, May 02, 2007 12:14 PM To: [email protected] Subject: Re: So what's this return bend thing? Is this combination Sprinkler/Heating system common? Maurice Marvi 800 417 4060 x78020 "Jamie Seidl" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] 05/02/2007 02:11 PM Please respond to [email protected] To <[email protected]> cc Subject So what's this return bend thing? http://www.kirotv.com/investigations/13203050/detail.html (Click the video link) Jamie Seidl _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) ---------------------------------------------------------------------- IMPORTANT NOTICE: The information in this email (and any attachments hereto) is confidential. If you are not the intended recipient, you must not use or disseminate the information. If you have received this email in error, please immediately notify me by "Reply" command and permanently delete the original and any copies or printouts thereof. Although this email and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by The Hartford Steam Boiler Inspection and Insurance Company or its subsidiaries or affiliates either jointly or severally, for any loss or damage arising in any way from its use. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
