A chiller, also known as a chiller or refrigeration unit, is a refrigeration equipment that can provide low-temperature cooling water. It absorbs heat from the cooled object and discharges it into the environment through the circulation of refrigerant, thereby achieving the goal of reducing water temperature. Chillers are widely used in various fields such as industrial production, commercial buildings, data centers, medical facilities, food processing, refrigeration and air conditioning, and scientific research experiments.

Water cooled chillers are usually more efficient and operate quieter than air-cooled chillers. Suitable for small and commercial cooling, portable solutions can be provided for facilities with limited space. With the development of technology, industrial water coolers adopt more environmentally friendly and energy-saving refrigeration technologies, such as carbon dioxide refrigeration and heat pipe technology.