CONTROL SYSTEM FOR A REFRIGERATED MERCHANDISER

A refrigerated merchandiser including a case defining a product display area supporting product and an evaporator disposed in an air passageway in fluid communication with the product display area via an outlet to direct a refrigerated airflow into the product display area. The merchandiser also inc...

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Bibliographic Details
Main Authors JOHNSTON SIMON A, LEA DEREK R, REES BRIAN J
Format Patent
LanguageEnglish
Published 12.12.2013
Subjects
BLASTING
COFFEE MILLS
COLD ROOMS
COMBINED HEATING AND REFRIGERATION SYSTEMS
COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS
DOMESTIC ARTICLES OR APPLIANCES
FURNITURE
HEAT PUMP SYSTEMS
HEATING
HUMAN NECESSITIES
ICE-BOXES
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
PAYING COUNTERS
REFRIGERATION OR COOLING
REFRIGERATORS
SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS,STOREHOUSES, BARS, RESTAURANTS OR THE LIKE
SPICE MILLS
SUCTION CLEANERS IN GENERAL
WEAPONS
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Summary:A refrigerated merchandiser including a case defining a product display area supporting product and an evaporator disposed in an air passageway in fluid communication with the product display area via an outlet to direct a refrigerated airflow into the product display area. The merchandiser also includes a control system in communication with and programmed to control the refrigeration system so that the product display area is maintained within a predetermined temperature range. The control system also varies the temperature of the refrigerated airflow through the outlet above an airflow temperature threshold between about 35 degrees Fahrenheit and 41 degrees Fahrenheit at least once during a predetermined time period to avoid formation of frost on the evaporator while maintaining the product display area within the predetermined temperature range.
Bibliography:Application Number: US201213494310