Cooling units that combine, in a single device, the direct cooling of a carrier fluid (water- or air-cooled) and the temperature control of a fluid (water) to the users via a mixer or indirect system. Suitable for the temperature control of multiple users in the absence of an existing primary fluid network. Electronically controlled via a dedicated microprocessor system, they are equipped with a circulation pump on the secondary and primary circuits, a primary circuit refrigeration unit, expansion vessels, a power panel, a control panel, mixing units or high-efficiency exchangers, and certified control and safety systems. Available in standard versions for design temperatures from 7°C to 60°C and for power outputs up to 120 kW.