Engineered Systems - March 2009 - (Page 16)

CaseInPoint solutions are available through a nationwide network of Vykon Distributors. ActiveLogix Charlotte, NC 704-578-9776 vykonsales@activelogix.com Advanced Power Control, Inc. Newark, DE 302-368-0443 vykonsales@adv-power.com BITS Waukesha, WI 877-334-9333 vykonsales@envsysinc.com Cochrane Supply Madison Heights, MI 248-588-9260 vykonsales@ cochranesupply.com Controlco Automation Distributors Concord, CA 925-602-7728 vykonsales@controlco.com Control Consultants, Inc. Weymouth, MA 781-335-8353 vykonsales@ controlconsultantsinc.com E.C. Smyers Co. Pittsburgh, PA 412-471-3222 vykonsales@smyers.com Industrial Control Distributors Wanamassa, NJ 732-918-9000 vykonsales@icdmail.com Jackson Control Company, Inc. Indianapolis, IN 800-772-9859 vykonsales@jacksoncontrol.com Long Building Technology Englewood, CO 303-975-2100 vykonsales@long.com Minvalco, Inc. Minneapolis, MN 952-920-0131 vykonsales@minvalco.com Temperature Control Systems, Inc. Dallas, TX 214-343-1444 vykonsales@tempconsys.com Universal Supply Group, Inc. Hawthorne, NJ 973-427-3320 vykonsales@usginc.com Input 23 at www.esmagazine.com/instantproductinfo O’Day met with government representatives in mid-March to review occupancy plans. Very tight security at the venues placed some restrictions on where the cooling equipment could be located and also had to be factored into the planning. Using this input, U.S. Engineering calculated heat loads, determined the appropriate cooling tonnage to serve each area, and designed the required ductwork. “We only had about six weeks from the initial meeting date to ﬁnal installation, so everything had to be done on a fast-track schedule,” he notes. ON TRACK The cooling equipment selected for the job included about 30 portable air conditioners from Atlas Sales & Rentals that ranged from 1 to 12 tons each in cooling capacity. The largest units were placed outside the command centers and hard-ducted using nearly 200 ft of ductwork in split runs. Seven-andhalf-ton ton units were installed adjacent to the video security area, and smaller units (1 to 5 tons) with either hard ducting or “snorkel packs” were used to serve conference rooms and similar areas. O’Day said that delivery and installation went smoothly, and the portable coolers performed without a glitch throughout the summer. “On the Friday night before the convention, one unit went down, not because of equipment failure but due to human error,” says O’Day. “Atlas immediately delivered a spare unit to the site and got it up and running right away. Even though it turned out the cooler that went down was working ﬁne, we kept the backup unit onsite as a precaution.” “Despite the record heat, the portable air conditioners from Atlas really did the job, maintaining 68° temperatures to protect critical staff and equipment. We were very pleased with how it turned out,” he said. Atlas supplied 25 to 30 additional portable machines for comfort and equipment protection in locations around the Pepsi Center during the week of the Democratic National Convention. According to Atlas Denver ofﬁce manager Dave Mann, these units served media equipment rooms as well as tented hospitality and staging areas outside the Pepsi Center. “We were receiving daily calls for added equipment, and we Input 59 at www.esmagazine.com/instantproductinfo Input 23 at www.esmagazine.com/instantproductinfo 16 En gi neer ed S y stem s March 2009 http://www.lattner.com http://www.esmagazine.com/instantproductinfo http://www.lattner.com http://www.esmagazine.com/instantproductinfo http://www.esmagazine.com/instantproductinfo

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Engineered Systems - March 2009 Contents Editor’s Note Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist Teaching An Old School New Tricks Basics For Absorption Chillers A New Haven For Sustainable Schools Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - March 2009

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