Metro Magazine

JUL 2014

Magazine serving the bus and rail transit & motorcoach operations since 1904

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Tough American Cooling Technol- ogy is still partnered with Espar in the distribution of large rooftop A/C units, the company needed a solution suit- able for smaller shuttle-bus type vehi- cles. Rooftop A/C systems and condens- ers are a great option for most buses because of the location. Placing these units atop the bus, rather than under- neath, removes the risk of picking up de- bris and dust, reducing maintenance in- tervals. Plus, the physical distance from the road surface allows the circulation of cooler and cleaner air, especially in des- ert cities. ACT wanted to ofer this appli- cation for smaller vehicles as well. Since ACT specialized in rooftop con- densers and, over the years, has creat- ed a family of condensers, producing its own rooftop A/C unit for smaller vehi- cles was the logical next step. Te result 28 < m ETRO m AGAZINE JULY 2014 metro-magazine.com Manufacturers continue to examine industry trends and requirements to provide the latest green, lightweight and efcient rooftop units in response to customer demand. BY KELSEY NOLAN, Assistant Editor AIR CONDITIONING TRENDS: ROOFTOP SYSTEMS IMPACTING THE MARKETPLACE ROOFTOP SYSTEMS AIR CONDITIONING TRENDS: AIR CONDITIONING TRENDS: AIR CONDITIONING TRENDS: ROOFTOP SYSTEMS AIR CONDITIONING TRENDS: ROOFTOP SYSTEMS AIR CONDITIONING TRENDS: AIR CONDITIONING TRENDS: AIR CONDITIONING TRENDS: Since the initial development of rooftop air conditioning (A/C) systems, compa- nies industrywide have been tweaking existing technology for a more sophisti- cated, efcient and greener design. Te result has been heavier-duty compres- sors, systems designed for small bus- AMERICAN COOLING TECHNOLOGY www.actusa.us.com es, renegotiated seals to eliminate leaks and even the successful application of units departing from their intended us- age. And, as the customer demand for rooftop systems continues to grow and the environmental standards remain stringent, manufacturers are focusing their attention to the greener refrigerant, HFC 1234YF, to assess how it can com- plement their already existing products. METRO spoke to industry experts to fnd out how these new technologies can beneft your transit agency's vehicles in new and consistent ways. After two years of research, engineering analysis and testing, ACT launched the RTS-75 in February. ROOFTOP SYSTEMS

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