Apparatus and installations for environmental controls including heating, cooling, and refrigeration; Refrigeration machines and installations; Walk-in refrigerators; Refrigeration appliances; Portable refrigerators; Pharmacy refrigerators; Refrigerating chambers; Refrigerators for medical storage purposes; Intelligent refrigerators capable of sensing and monitoring their contents and notifying users about expired products; Refrigerated medical containers for storage, transportation and cooling of medicines and pharmaceuticals; Temperature controlled, refrigerated or heated mobile units for the storage and delivery of food products; Commercial refrigerators and freezers and replacement parts and fittings therefor; Refrigerators equipment, namely, food and beverage chilling units; Portable refrigerator rooms; Commercial refrigerators and freezers and replacement parts and fittings therefore