Engineered Systems - October 2008 - (Page 51)

www.dedietrichboilers.com Phoenix Convention Center “They’re an environmental win, too,” added Mason, citing NOx levels of less than 10 ppm and up to 96% efficiency as positives in Phoenix and with the USGBC. “Another key need was that the units we selected would need to have a small footprint; the boiler’s compact size allowed us to install 10 units in a space where only a couple three-pass boilers could’ve been installed — if we could have gotten them in there.” The smaller footprint allowed entry through a standard 36-in. doorway and transport on any service elevator. The high-efficiency boilers have also reduced the amount of natural gas required to heat the domestic water, Mason reports, lowering energy consumption, and operating cost. “We particularly like the Grundfos circulators because of their reliable, wet rotor design,” Brown added. “They’re cooled by the liquid they circulate.” LEED CONVENTION CENTERS, STILL A RARITY For convention centers, LEED certification is a distinction that sets them apart. To date, only three existing venues in the United States are LEED-certified: the David L. Lawrence Convention Center in Pittsburgh; the Oregon Convention Center in Portland, OR; and the Spokane Convention Center in Spokane, WA. The project in Phoenix implemented other, non-HVAC basic recommendations of the USGBC as well, including the use of construction materials from within a 500-mile radius of the project and recycling paper, plastic, cardboard, and glass. ES As the Boiler Should Be!!! NEAR CONDENSING BOILER GT SERIES c True Eutectic Cast Iron = flexibility in the casting c Absolutely thermal shock proof!!! GUARANTEED! c +88% Thermal and Combustion Efficiency c Low NOx burners 15 to 30 ppm c T’s up to 80ºF c No minimum flow requirements c Large waterways = lower pressure drops c State of the Art Control packages c 90 PSI working pressures c Models up to 6,200 MBH c Best warranty in the industry The 10 million Btuh boilers installed in the Phoenix Convention Center feed 58,000 lineal feet of piping to heat the building. few of the systems — somewhere between 4 and 6 — are operating simultaneously. But that’s just as we knew it would be. This way, all boilers get run time, and we’ve secured the redundancy the convention center needs for the assurance of no down time, ever.” In the West Hall’s mezzanine level is the mechanical room where the boilers are lined up on two sides like soldiers in formation. A bevy of Grundfos TP 80-160/2 pumps circulate the heated water in many different directions. “We were also thrilled to have an application for 10 of the Rheos+ systems,” said Rilling. “The boilers are perfectly suited for the job because their controls monitor the demand for hot water and automatically adjust each boiler’s capacity to meet the required heating load from 1.2 million to 2 million Btuh with variability of modulation between 100% and 25% of the input rate.” Vastyan, a journalist whose work focuses on the plumbing and mechanical and radiant heat industries, owns Common Ground, a trade communications firm based in Manheim, PA. Vastyan is a graduate of Penn State University. He also served as a US Army journalist for four years, winning the DINFOS Journalist of the Year award in 1984. He can be reached at 717-664-0535, or at cground@ptd.net. WHEN YOU TH!NK BOILERS TH!NK Input 219 at www.esmagazine.com/instantproductinfo w w w. esmag a zine . c o m ESM10084DD#3.indd 1 51 9/19/08 1:58:59 PM http://www.dedietrichboilers.com http://www.dedietrichboilers.com http://www.esmagazine.com/instantproductinfo http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - October 2008

Engineered Systems - October 2008 Contents Editor’s Note Letters Back2Basics HVAC Challenge Case in Point Commissioning Building Automation HydroTech HVACR Designer Tips Special Insert: Engineer's Technical Library Fall 2008 Living Wild! Chilled Beams in Chicago Phoenix Convention Center: On The Rise Cold-Climate HVAC Challenges Humidification Strategies For Data Centers & Network Rooms Special Advertising Supplement: Tabb Talk Computers & Software Issues & Events Products Literature & Catalogs Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - October 2008

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