Intelligent defrost control method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10746446
APP PUB NO 20170176072A1
SERIAL NO

15384824

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Abstract

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A method of initiating a defrost cycle using a controller of a heat pump system includes measuring a temperature of an evaporator coil and determining whether the temperature of the evaporator coil is less than a freezing temperature. Responsive to a determination that the temperature of the evaporator coil is less than the freezing temperature, determining whether a current dew point temperature of air is greater than the temperature of the evaporator coil. Responsive to a determination that the current dew point temperature of air is greater than the temperature of the evaporator coil, calculating a frost-collection rate. Determining whether the frost-collection rate is greater than a frost-collection-rate threshold, and, responsive to a determination that the frost-collection rate is greater than the frost-collection-rate threshold, initiating a defrost cycle.

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Patent Owner(s)

Patent OwnerAddress
LENNOX INDUSTRIES INC2140 LAKE PARK BLVD RICHARDSON TX 75080

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berg, Eric The Colony, US 73 2319
Douglas, Jon Lewisville, US 16 68
Gokhale, Umesh Irving, US 40 110

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