Cooling groups cool the water coming into the evaporator, so the usage of this cold water can be changed according to the application. Cooling groups comfortably keep the indoor cold through fan coils or air handling units . Today, many buildings such as shopping malls, hospitals, high business centers are cooled by chiller groups. In industrial applications, cooling groups are used in machine equipment cooling, cooling of a chemical reaction as in coating plants, cooling of plastic injection molds and many processes. Cold water (which are provided by the air or water source cooling group) is needed in many sectors such as energy, paper, food, chemistry, plastic, iron and steel.