Commercial refrigeration units; Refrigerating machines for use in industrial refrigeration; Refrigeration installations; Refrigeration units; Beverage cooling apparatus; Chiller units being parts of water cooling installations; Coils being parts of cooling installations; Cooling appliances and installations; Electrical appliances for making cooled beverages; Installations for cooling drinking water; Refrigerating or freezing apparatus for cool rooms; Cold rooms; Portable cold-boxes, electric; Combinations of refrigerators and freezers; Electric refrigerators; Refrigerators; Walk-in refrigerators