Defrost control of a refrigeration system utilizing ambient air

Details Defrost control of a refrigeration system utilizing ambient air Defrost control of a refrigeration system utilizing ambient air

1994-12-16

1996-07-09

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62154, 62156, F25D 2106

Patent

active

055333508

ABSTRACT:
A method for determining the time to begin and end a defrosting cycle of an evaporator included within a refrigeration system. Decisions as to initiate and terminate defrosting operations are predicated on information about the external temperature of the system and measuring differences in the rate of change of temperature drop between non-iced and iced conditions.

REFERENCES:
patent: 4373349 (1983-02-01), Mueller
patent: 4627245 (1986-12-01), levine
patent: 5363669 (1994-11-01), Janke et al.

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