COMPLETION of a hermetically sealed 100-ton 16-cylinder air-conditioning compressor unit driven by a 100-horsepower 1,150-rpm refrigerant-cooled motor recently was announced by the air-conditioning department of the Westinghouse Electric and Manufacturing Company, East Springfield, Mass. The new unit is intended particularly for stores, factories, theaters, and similar applications. Of extremely compact design the unit is said to require only one-third the space that would be required by a compressor of conventional design for the same capacity, and to weigh only two-thirds as much.