The unit adopts the original fully enclosed compressor and fully automatic control system from France's U-Le. The evaporator adopts a brazed plate heat exchanger, which can quickly and continuously cool water from room temperature to below 5 ℃, and ultimately keep the water in a low temperature state of 2-5 ℃ (+2 ℃). It is an indispensable refrigeration equipment in the manufacturing of soda, cola, sparkling wine, fresh milk and other industries. It has the advantages of high refrigeration capacity, no leakage, and high degree of automation.