CONTROL SYSTEM FOR A REFRIGERATED MERCHANDISER

• Main Authors: Rees, Brian J, Johnston, Simon A, Lea, Derek R
• Format: Patent
• Language: English
• Published: 02.08.2018
• 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

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.