The precision air conditioners , also known as a CCU (close control units) or CRAC (computer room air conditioner) are refrigerating equipment specifically designed to provide precise control of temperature and humidity in all applications in which is required a very high degree of precision. The precision air conditioners are used in data centers, where the refrigeration loads required can vary from 5 to 20 kW, server rooms, data centers, mobile, laboratories and many other industrial applications. The Hidros precision air conditioners are designed and built using components produced by leading international companies, using environmentally friendly refrigerants and can be very flexible. All products are also compliant with the European directive ErP2015.