Metro Magazine

JUL 2014

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

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Rick Lehnert, president of Trans/Air Manufacturing, says that as the com- pany gets more aggressive in the transit bus and motorcoach markets, it need- ed a rooftop A/C system that addresses the smaller market, since it already has technology for larger buses. The trend toward low-foor buses and more coach sales has increased the demand for roof- top systems. Rooftop systems also allow gentler, cleaner and quieter operation while manufacturing fow can be better with rooftops. Rooftops also can result in less installation labor. Lehnert says the product is designed to not have a protrusion down in the center aisle, so it doesn't impact head clearance. Te two systems ofer either free-blow distribution or ducted air dis- tribution, and customers have a pur- chasing option based on the size of their vehicles. Te RT65 can be used on a small bus, the RT96 fts a mid-size bus and custom- ers can put two RT65s on a large bus in place of a single unit. Plus, these roof- tops can pair with the TM43 transit com- pressor for high performance systems. As companies trend toward alterna- tive fuels, Lehnert explains that custom- ers will most likely lean more toward purchasing rooftop systems. This is, in part, because fuel tanks sometimes are in a place where skirt condensers are usually installed, so the only natural re- sponse is putting the A/C unit on top of the bus. Lehnert says Trans/Air is stay- ing ahead of the industry trend toward the new refrigerant R1234yf, which has a low global warming potential and will keep customers informed. 33 JULY 2014 m ETRO m AGAZINE > Although Trans/Air's RT65 is ideal for small buses, operators can also place two on a large bus in place of a single unit.

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