Carrier Corporation has recognized an energy-efficient HVAC installation in a prominent Austin, TX building with a Carrier Regional Environmental Leadership Award. The award was presented to the Horizon II Building, 4401 Westgate Blvd., during the first U.S. Green Building Council Conference & International Exposition (Nov. 13-16), in Austin, TX. Representatives from three Austin companies -- property owners The Kurt Simons Company, engineering firm Talex Inc. Engineers and mechanical contractor Fox Construction -- received plaques recognizing their leadership in green building design. “Periodically, Carrier Corporation presents Regional Environmental Leadership Awards to companies that have invested in energy-efficient projects, which provide innovative, environmentally-sound design solutions for their commercial buildings,” explains John Mandyck, Carrier’s vice president of government and international relations. “Horizon II is a perfect example of a building that uses green building design and provides its tenants with a healthy place to live and work,” he adds. Completed this summer (2002), the four-story, 100,000 sq.ft. Horizon II building serves as home to a major telecommunications company’s engineering and marketing offices. Expected to eventually become the workplace for up to 500 people, and with Austin’s average high temperatures for July and August in the upper 90s, Horizon II’s building designers took tenant comfort and HVAC system design very seriously, says Tom Alexander, P.E. said. Alexander, a principal of Talex, Inc. Engineers, who planned the building with Austin’s Sixth River Architects, explained that while tenant comfort was first on the building owner’s list of requirements, energy efficiency, low lifecycle costs and a progressive refrigerant were all factors considered in selecting the chiller for the building’s HVAC system. “The building owners, The Kurt Simons Company, are ‘long-term’ owners who were looking to maximize tenant comfort, while reducing operating and maintenance costs,” Alexander explains. “Also, we were looking for a chiller using a refrigerant other than R-22.” Chad Cullison, a sales engineer for Austin-based Carrier independent distributor Robert Madden Industries Ltd. first learned about Horizon II’s heating, ventilation and air conditioning (HVAC) needs from Fox Construction, the project’s mechanical contractor. Fox was looking for two 200-ton chillers with aggressive energy efficiency and Cullison suggested Carrier’s 30GX Ecologic _ (Eta) air-cooled chiller. “The ‘Ecologic Eta’ performs with an Energy Efficiency Rating of 10.4, making it extremely energy efficient, and also uses R-134a environmentally-sound refrigerant, which won’t contribute to ozone depletion,” Cullison explains “With that type of efficiency, the Horizon II building will pay for the cost of its new chillers with energy savings in just two years.” Talex Engineering’s Alexander agrees that the Ecologic’s efficiency was tough to beat. “The redundancy of the chillers was very good and the Ecologic had a better lifecycle cost than any of the other design approaches that we looked at,” he says. To complete the job, Robert Madden Industries also provided four Carrier air handlers, variable air volume (VAV) boxes and Carrier Comfort Network (CCN) controls. It all comes down to tenant comfort, says Ronnie Brooks, partner at The Kurt Simons Company. “From a building management perspective, Carrier’s CCN controls allow us to be able to monitor and run diagnostics on all the Carrier HVAC equipment installed within Horizon II from one central location,” Brooks explains. “With maximum control over our HVAC equipment, we’re able to respond to our tenant’s comfort needs immediately. “We’re proud to that we can provide our own customers with the comfort that they deserve,” he adds. “It’s icing on the cake to know that we’re maximizing their comfort while, minimizing any harmful impact on the environment.” The Green Building Council More than 3,000 people attended the first annual U.S. Green Building Council (USGBC) Conference & International Exposition in Austin. A consensus-based coalition of leaders from across the building industry, the nonprofit USGBC (www.usgbc.org) works to promote buildings that are environmentally responsible, profitable and healthy places in which to live and work. In support of the USGBC’s efforts, and following the U.S. Environmental Protection Agency's guidelines for greening events and conferences, Carrier Corporation made a contribution to the nonprofit Leonardo Academy’s Cleaner and Greener Program toward emissions reductions to offset any air pollution caused by energy use associated with Carrier's participation in this event. For more information on Carrier, visit www.carrier.com; or call 800/CARRIER.