Commercial Building Products July/August 2015 - (Page 18)

PROJECT hvac & plumbing Levi's Stadium in Santa Clara, CA, home to the National Football League's San Francisco 49ers, is said to be the first professional football stadium in the U.S. to achieve LEED Gold status. Reclaimed Water System Scores Touchdown The new San Francisco 49ers stadium, with more than twice the toilets as the old stadium, expects to save 42 million gal. of water/yr. Right. A recycled-water pressure-booster system is a key component of the Levi's Stadium system, ensuring adequate water is available when demand is at its highest, such as during halftime of a football game. T he $1.3-billion Levi's Stadium in Santa Clara, CA, home to the National Football fornia. By connecting to the water district's League's San Francisco 49ers, is a model of sustainability, thanks in part, to a recy- recycling system, planners leveraged a cled-water pressure-booster system. In addition, the 68,500-seat stadium includes drought-proof water source for the stadi- a wide variety of green features including a 27,000-sq.-ft green roof, owners' suites decked out in reclaimed wood, and farm-to-table concession offerings. um's flushing and irrigation systems. The development and design of the recycled-water pressure-booster system was a col- From the outset of the project, the designers and developers wanted to make the stadi- laboration among the equipment dealers, designers, engineers, and plumbing contractors. um as efficient and sustainable as possible. That goal was realized on July 22, 2014, when All of the Bell & Gossett products included in the stadium's building systems were selected Levi's Stadium became the first professional football stadium in the U.S. to achieve by Turner-Devcon, Milpitas, CA, which drafted design-development drawings and speci- USGBC LEED Gold status. fications, along with the support of M-E Engineers, Denver. Plumbing contractors Califor- Thirty-nine points are required for Gold certification, and Levi's Stadium earned 41 nia-based ACCO Engineered Systems and F.W. Spencer and Son, Brisbane, CA, complet- points to qualify. In the water-efficiency category the stadium earned received five out of ed the permit packages, which included the selection of Bell & Gossett centrifugal pumps five points, which demonstrates innovative efficiency in landscaping, water-use reduction, and Goulds Water Technology e-SV multistage pumps for the recycled-water pres- and wastewater technologies. This achievement was due, in part, to the design and use of sure-booster system. (Goulds and Bell & Gossett are Xylem Inc., Rye Brook, NY, brands.) a reclaimed water system for non-potable applications. From playing-field irrigation to the For the reclaimed- and potable-water systems there are two pressure zones due to the planted roof, toilets, and the cooling towers, 85% of the water used in Levi's Stadium is height of the structure. A single pressure zone to provide adequate pressure at the highest recycled. fixture would have caused the lowest fixture to have pressures in excess of 80 psi, the max- The stadium is not the first to use water-reuse technology, but the extensive use of the imum allowed by code at any fixture. technology helped it also meet all of the evaluation criteria in the LEED innovation cate- CHC's Ken Carey said this about the project, "Every detail regarding environmental gory. Although there are twice as many toilets in the new stadium as there were in Candle- sustainability was addressed during planning and construction. This project is a bellwether stick Park, the 49ers' former stadium, the expectation is for significant water savings. for others to follow." By eliminating the need to use fresh water to flush toilets and to irrigate the natu- "The system needed to be both innovative and high-performing," said Kevin Coyne, ral-grass field, planted roof, and other areas, the stadium makes use of readily available vice president, F.W. Spencer. "Based on our successful history working with CHC, we wastewater without tapping into freshwater supplies, which is of particular concern in knew the Bell & Gossett products would deliver on both fronts." drought-ridden California. According to stadium water-assessment estimates, the system will save more than 42 million gal. of water/yr. To ensure safety and compliance with quality assurance and quality control, city and stadium staff inspected every water fixture in the stadium for the presence and absence of The recycled-water pressure-booster system, a key component, was built by California recycled water and potable water, respectively. Hydronics Corp. (CHC), Hayward, CA. It is driven by Bell & Gossett, Morton Grove, IL, A live dashboard at the stadium displays current energy measurements, water and air pumps. The system ensures adequate water is available when demand is at its highest, such monitors, and other dynamic green features as the building operates daily, giving fans and as during halftime at a football game. visitors the opportunity to witness the sustainable efforts in action. Before the stadium was packed with fans, the water The 49ers played the 2014 NFL season in system was tested to ensure it could handle the level of their new home, and the stadium hosted myri- demand likely during game day. The Super Flush was conducted in April 2014. During the test, hundreds of workers and volunteers simultaneously flushed every toilet and urinal and turned on every sink in the stadium for about ad other events since it opened, including colWant more information? The resources below are linked on our website and in our digital magazine at cbpmagazine. com/digital/julaug2015. 30 min. The recycled-water system handled the test with Circle 11 on the Reader Service Card. flying colors and on June 10, 2014, the stadium was con- Download brochures on Bell & Gossett products used in the project: * Rolairtrol air separator * 1510 pump (This pump has been redesigned as the e-1510.) * Series 60 inline pump * VSX split-case pump nected to Santa Clara's recycled-water utility. The city of Santa Clara is known for having one of the most forward-thinking recycled-water programs in Cali18 COMMERCI A L BUIL DING P RODUC T S JUL/AUG 2015 cbpmagazine.com lege and high school football games, soccer matches, concerts, and motocross events. The stadium is scheduled to host Super Bowl 50 on Feb. 7, 2016, with a crowd of more than 70,000 people. That's when the innovation and technology that went into making Levi's Stadium the greenest in the country will be on display before a worldwide audience. CBP http://www.cbpmagazine.com/digital/julaug2015 https://www.cdsreportnow.com/bgs/search?CBP0011201507 http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/2012/07/a-307a1.pdf http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/2014/01/B-313.pdf http://bellgossett.com/pumps-circulators/in-line-pumps/series-60/ http://documentlibrary.xylemappliedwater.com/wp-content/blogs.dir/22/files/documents/2011/11/B-475D.pdf http://www.cbpmagazine.com

Table of Contents for the Digital Edition of Commercial Building Products July/August 2015

Table of Contents I
Table of Contents II
Editor's Notebook
Company Profile
Helping Buildings Evolve Gracefully
Fan-Coil Integral In Hotel Renovation
Reclaimed Water System Scores Touchdown
HVAC & Plumbing Products
Renovation Conserves Industrial Legacy
Windows & Doors Products
Nuts To Poor Insulation
High-In-The-Sky Roofing
Exteriors Products
Youth Theatre An Engineering Challenge
Interiors Products
Building Technology Products
Relamping Brightens Gyms, Cuts Costs
Lighting & Electrical Products
Showcase
Index
Portfolio

Commercial Building Products July/August 2015