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y <br />« • . . V <br />Supply Duct <br />^ •■^» <» ♦•-r w.• ^-». Aw^t .V* -J <br />•-, ■**. 7"^i * »”‘-' -.* ; *^ • * .» <br />..T. - .ir -•••-«t <br />- - • •• •!•• V <br />Water Return <br />Pond <br />Stream <br />Plenum <br />Cooling Coils <br />Heating Coi <br />I <br />Heated Refrig( <br />Line <br />i. T <br />ihiS <br />Blower Unit <br />vir* r f-* ' <br />Return to <br />Heat Exchanger <br />Refrigerant <br />Compressor Water-to-Refrigerant <br />Heat Exchanger <br />-<il^ 3-. • * •■:;- <br />-1 ’’'rV-^..- r-^ <br />Water Supply <br />Well <br />Water Pressure Tank <br />i <br />YOU AND YOUR HEATING <br />& COOLING NEEDS <br />GENERATED FROM WATER <br />TETCO*^ absorbs heat from water and <br />changes this literally free energy source <br />into usable high temperature heat for <br />domestic heating purposes. <br />Step 1—Water, supplied by a well or <br />other suitable source, flows through <br />tubes located inside a water-to> <br />refrigerant heat exchanger. Surrounding <br />the water tubes is a second container <br />filled with extremely cold refrigerant. This <br />cold refrigerant absorbs heat from the <br />water, lowering the water temperature <br />to the needed level. <br />s nowStep 2—^The refrigerant, which ha <br />acquired a considerable amount of heat <br />from the water, enters the compressor <br />where it is pressurized, increasing its <br />temperature to approximately 180'F. <br />Step 3—^The hot refrigerant circulates <br />through a refrigerant-to-air heat <br />exchanger. Air, circulated by a blower <br />unit is heated as it flows past the <br />refrigerant-to-air heat exchanger and is <br />then distributed throughout the home. <br />As the hot refrigerant flows through the <br />refrigerant-to-air heat exchanger, it cools <br />and condenses to a liquid state. <br />Step 4—^The expansion device acts as <br />a refrigerant flow restrictor. As the liquid <br />refrigerant leaves, its temperature and <br />pressure are reducec to approximately <br />32 “F. The cold refrigerant now enters the <br />water-to-refrigerant heat exchanger, and <br />the process repeats itself in a continuous <br />cycle. <br />OPERATION OF THE <br />TETCO' WATER-SOURCE <br />AIR CONDITIONING COIL <br />TETCO- directly air conditions by <br />circulating cold water through a large <br />finned coil. Warm air passing across the <br />fins is cooled as it transfers its heat to <br />tne colder water. No compressor is used <br />in the TETCO* process (as in ordinary <br />heat pumps). The only electricity <br />consumed is for the operation of a <br />blower unit and a pump. The large <br />savings are obvious.