HSS can be used in dry cooler as well as in remote condensers. Special nozzles spray water supplied to the unit in front of the heat exchanger surface and a mixture of additionally humidified air with reduced temperature allows for increased heat exchange through lamellas and tubes of the exchanger with the cooled medium. The water required for the system operation complies with the drinking water quality standards and does not require additional treatment. The water pressure required by the system should be not less than 2 bar. Detailed requirements are specified in the equipment selection sheet.