F - Mech Eng,Light,Heat,Weapons – 25 – D
Patent
F - Mech Eng,Light,Heat,Weapons
25
D
62/12
F25D 17/06 (2006.01)
Patent
CA 1140352
REFRIGERATING MACHINE INCLUDING ENERGY CONSERVING HEAT EXCHANGE APPARATUS ABSTRACT OF THE DISCLOSURE An improved commercial cube/crushed ice making machine includes a refrigeration unit having a water-to-refrigerant heat exchange condenser operatively connectible to an external water supply for heating water therein. The condenser provides for improved efficiency in the refrigeration unit over a conventional air-cooled condenser. Also, the water heating capability of the ice-making machine preferably functions as a secondary heat source for the external water supply, thus providing savings in energy costs for the primary water heating source. Further, the heat exchange relation between the refrigeration unit and the external water supply is determined by an improved control system which is responsive to both a refrigerant pressure at the condenser refrigerant outlet, and the water tempera- ture at the condenser water outlet for controlling water flow through the condenser while maintaining a pre-determined refrigerant pressure in the heat exchange means.
370379
Maring Oscar M.
Schneider Kenneth W.
Schneider Metal Manufacturing Company
Smart & Biggar
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