A chiller is a refrigeration device that achieves refrigeration by compressing a refrigerant so that it evaporates in an evaporator, absorbing heat and lowering the temperature, and then delivering the refrigerant to a condenser so that it condenses and releases heat. Freezers are usually used in the manufacture of frozen food, refrigeration and air conditioning.
A chiller is a type of refrigeration equipment that lowers the temperature by circulating water and delivering the cold water to the equipment or space that needs to be cooled, thus realizing the purpose of cooling. Chillers are usually used in the manufacture of electronic equipment, mechanical equipment, medical equipment and other occasions where low temperatures need to be maintained.
So the difference between a freezer and a chiller is that they work on different principles and application scenarios.
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