Refrigerated merchandiser with glass door heat control

Details Refrigerated merchandiser with glass door heat control Refrigerated merchandiser with glass door heat control

2011-03-15

2011-03-15

Nguyen, George (Department: 3723)

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

C062S151000, C062S248000

Reexamination Certificate

active

07905101

ABSTRACT:
A method of operating a refrigerated merchandiser. The refrigerated merchandiser includes a case that defines a product display area, and at least one door that provides access to the product display area. The method includes sensing a parameter of an ambient environment adjacent the case, delivering a signal indicative of the sensed parameter to a controller, and determining a duty cycle using the controller based on the signal indicative of the sensed parameter. The method also includes detecting a change in the sensed parameter using the controller, interrupting the duty cycle by initiating a clearing interval using the controller in response to the controller receiving the signal indicative of the change in the sensed parameter, and clearing condensation from the door during the clearing interval.

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Sensirion SHT1x/SHT7x Humidity & Temperature Sensor, v2.04, 9 pages, as early as May 2005.

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