Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1977-12-01
1978-10-31
Wayner, William E.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62187, 62282, F25D 2112
Patent
active
041226879
ABSTRACT:
A refrigeration system for a refrigeration unit having an evaporator coil through which cooling fluid is circulated. Air is forced across the evaporator coil and valve means directs the flow of air into an enclosed freezer compartment or alternately to a warmer enclosed refrigerated compartment which has a temperature above 0.degree. C. The air normally passes into the freezer compartment until the evaporator coil reaches a predetermined low temperature, below 0.degree. C., then the flow of cooling fluid through the coils is stopped and the valve means directs the air flow to the refrigerated compartment to defrost the evaporator coil. When the evaporator coil reaches a predetermined high temperature above 0.degree. C., the temperature cooling fluid will once again be circulated through the evaporator coils and the valve means will again direct the air flow through the freezer compartment. Both the freezer compartment and warmer refrigerated compartment have outlets controlled by the valve means leading to the evaporator coil so that the air is directed from either the freezer compartment or warmer refrigeration compartment across the evaporator coil and then back to either the freezer compartment or warmer refrigeration compartment.
REFERENCES:
patent: 1705928 (1929-03-01), Lambert
patent: 3015217 (1962-01-01), Beemer et al.
patent: 3048024 (1962-08-01), Jacobs
patent: 3080727 (1963-03-01), Devery
patent: 3082612 (1963-03-01), Beckwith
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