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Heating Ventilation Air Conditioning & Refrigeration

Heating, Refrigeration and air-conditioning systems not onlycontrol the temperature and humidity of our air, but the total air quality in residential, commercial, industrial, and other buildings, coolers, refrigerated trucks, and freezers. Refrigeration systems also make it possible to store and transport food, medicine, and other perishable items.  Think about what you did yesterday or what you might do today that involves refrigeration, heating or cooling and air-conditioning systems.

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