Multi-range composite-evaporator type cross-defrosting system

Details Multi-range composite-evaporator type cross-defrosting system Multi-range composite-evaporator type cross-defrosting system

2009-03-16

2010-06-29

Tapolcai, William E (Department: 3744)

Refrigeration

Reversible, i.e., heat pump

C062S324600

Reexamination Certificate

active

07743621

ABSTRACT:
The present invention provides a multi-range composite-evaporator type cross-defrosting system for continuous heating operation under an environment temperature range from 20 degree to negative 40 degree Celsius. Said system employs a combination of two defrosting methods under different temperature and humidity conditions; the first defrosting method is used for the outdoor temperature range of 20 degree Celsius to 0 degree Celsius, the second defrosting method is used in the outdoor temperature range of 10 degree Celsius to negative 40 degree Celsius, and a control system will adjust the appropriate threshold for switching between the two defrosting methods.

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