Abstract: A refrigerated display unit is described which comprises at least one refrigerating machine; at least one refrigerated volume designed to contain products to be kept at a temperature lower than the room temperature by means of the refrigerating machine; at least one technical volume intended to contain an air treatment unit, operatively connected to the refrigerating machine and comprising at least one heat exchange battery, through which a refrigerating fluid and a carrier fluid exchange heat, and a plurality of fans placed at the inlet surface of the heat exchange battery; one or more doors or walls that isolate the refrigerated volume from the external environment; one or more conduits of an air system, placed in fluid connection with the heat exchange battery and arranged for conveying the refrigerated carrier fluid, moved by the fans, towards the refrigerated volume.