Tecumseh has made rotary compressors for several decades, but just recently adapted the concept to commercial refrigeration. Company engineers developed a horizontal version that can be combined with a low-profile condensing unit to achieve an overall height of 7 in.

Tecumseh's horizontal rotary compressor and low-profile condensing unit were developed for use in display cases. (Photos courtesy of Tecumseh Products Co.)

The horizontal rotary compressor is available now with R-22 and -407C in 1/4- to 3/4-hp sizes. Future plans include compressors that can use R-134a and -404A and are available in the same horsepower ranges. Tom Moffatt, national sales manager, said the development of rotary technology for refrigeration comes with “material changes and microfinishing processes” from those used for air conditioning applications. “In this way, we are able to maintain the reliability of rotary compressors for commercial refrigeration,” he said.

“This introduction culminates several years of hard work by the people of Tecumseh,” stated Herrick. “It began with all of the experience we have making rotary compressors in vertical configurations, which set the standard in the industry. Our horizontal prototypes endured countless cycles of endurance testing in the laboratory, followed by rigorous field testing in cooperation with several customers.

“We are delighted to now make the horizontal rotary compressor and low-profile condensing unit available to case makers everywhere.”

Moffatt noted that Tecumseh is also involved in testing horizontal scroll compressors for larger commercial refrigeration applications.

For more information, visit Tecumseh’s website at www.tecumseh.com.

Publication date: 06/03/2002