They are special units configured according to some specific requirements needed especially in the Laser industry. Unlike many processes that require cooling, cooling for laser systems is a more sensitive issue. Some of the main differences are single or dual water outlets that can be set to different temperatures at the same time, de-ionization system, water heating at start-up and water output at different pressure levels. Since the cleanliness of the water is as important as the water temperature, all circuit elements are specially selected.
