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I <br />OPERATION OF THE TETCO ' <br />HEAT EXTRACTOR <br />f he TETCO Heat Extractor absorbs low-grade energy in the form of heat trim . -'h -aty• ,,c nang" ir, • tc V )ia.1. <br />energy into usable high temperature heat for domestic heating purposes <br />Step ] —Water. supplied by a well or other suitable source flows through tubes located inside a water to refrigerant neat <br />exchanger. Surrounding the water tubes is a second container filled with extremel%; cold refrigerant This cote <br />refrigerant absorbs heat from the water. lowering the water temperature to within several degrees of the freezing ptrin, <br />Step 2—The refrigerant, which has now acquired a considerable amount of heat from the water enters the compresso. <br />where is It pressurized to approximately 245 pounds per square inrh increasing its temperature to approximate). IS( <br />degrees Fahrenheit <br />Step 3—The hot refrigerant circulates through a refrigerant to air heat exchanger Air. circulated by a blower unit ,s <br />heated as it flows past the refrigerant to air heat exchanger and is then distributed throughout the home Ar, the ho• <br />refrigerant flows through the refrigerant to air heat exchanger it coo,,, and condenses to a liquid state <br />Step 4—The expansion device (capillary tube) its as a refrigerant flow restnctor As the liquid refrigerant leaves rnt <br />capillary tube. its temperature and pressure are reduced to approximately 32 degrees Fahrenheit and i7 pounds per <br />square inch The cold refrigerant now enters Ole water to refrigerant heat exchanger and the process repeats -tseif •n a <br />continuous cycle <br />