Absolute Precision Control Air Conditioning Units of the manufacturer VERTIV type Liebert PDX-PI, cooling capacity from 15 to 165 kW, direct expansion (DX), equipped with variable flow Inverter Scroll Compressors, offering significantly increased seasonal energy efficiency and more accurate adjustment to the actual thermal load of the space. Inverter technology allows operation at partial loads with reduced energy consumption and limited compressor starts, while improving the reliability and life of the equipment. They are an ideal choice for modern high-availability Data Centers with an emphasis on reducing operating costs.