FIELD: ventilation.SUBSTANCE: invention relates to air conditioning and ventilation technology and can be used to create comfortable conditions and microclimate in industrial premises with excessive heat generation. Air conditioning system with a combined indirect cooling system includes a fan cooling tower, a sump for collecting chilled water is installed in the lower part of the body, and ejection openings are provided in the body above the sump for inlet air, and in the upper part there is an irrigation device with nozzles and an axial fan, and the air conditioner contains a centrifugal fan that supplies air to the room, as well as a supply and exhaust shaft, having a common wall separating them, the automatic valve regulates the flow of external and recirculated air through the filter from the room, flowing through the duct in which the axial fan is installed, the spray nozzle of the cooling tower is made with a sprayer disc and contains a cylindrical body with a fitting rigidly connected to the body and
