Low-noise water-cooled ventilation unit with a 50 kW cooling capacity, fitted with continuously variable ventilation control that can blow in three directions. As an option, the unit can be fitted with a defrost device, making it suitable for low-temperature applications as well. This system can also be used as a heater (capacity: 15 kW). The unit is ready for use and easy to install with its quick-connectors. The unit is easy to move with a pallet cart or forklift.