Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1993-01-25
1994-06-14
Tanner, Harry B.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62211, 62223, F25D 2106
Patent
active
053199430
ABSTRACT:
A microprocessor based control system for controlling frost accumulation on the outdoor evaporator coil of a heat pumping system during normal heat mode operations. A demand defrost concept is implemented to increase efficiency and maximize time intervals between defrost cycles by initiating the defrost cycle only when an optimal maximum amount of frost has accumulated on the coil. The control system also facilitates monitoring of the rate of frost accumulation to make the outdoor coil conditions less favorable to frost buildup.
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Bahel Vijay
Herroon Gregory P.
Hickey Mickey
Millet Hank
Pham Hung
Copeland Corporation
Tanner Harry B.
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