Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
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heat pumps to mechanical engineering schools at Virginia Polytechnic Institute, West Virginia University, West Virginia Institute of Technology, and the University of Virginia. The heat pumps will be used for testing and experimentation by students interested in refrigeration, air conditioning and the heat pump The heat pump is a single unit that heats and cools, changing from one cycle to the other automatically. The units given to the schools have a five-ton capacity and “airto-air” system, using only air and electricity to provide desired room temperatures. The electric companies also installed the equipment. The heat pumps are ‘built-up” systems as opposed to manufacturers’ factory packaged models. Components for the heat pumps were assembled at the schools. Cary noted that there were several advantages to a built up system over a packaged unit, as far as use in the classroom is concerned. The built-up 6 v stem provides greater accessibility to parts for study and testing, where factory packaged units are compact in construction. The built-up system can be continuously modified to incorporate improvements and thus does not become outdated. In addition, extra components can be installed on a built-up system.
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