Adaptive defrost control system

Details Adaptive defrost control system Adaptive defrost control system

1994-02-28

1995-08-15

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62234, F25D 2106

Patent

active

054408938

ABSTRACT:
Control of defrost cycle initiation in a refrigeration apparatus is based on the difference between the last two defrost times, taking into account the sign of the difference so that the increase or decrease in the time between defrosts corresponds to the trend in defrost times rather than on any particular defrost time or the average of defrost times. A variety of limits are included to ensure that the time between defrosts is reactive to sudden aberrational changes in defrost times, and does not exceed minimum or maximum values.

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