HYD-S series products specially configured for HVAC market within the hybrid devices produced in Eraco facilities transfer the required coolant to the system by passing it through a dry-cooler or chiller circuit. It has the number of compressors and horsepower based on the capacity requirement. HYD-S series products with multiple compressor structure prevent the system from stopping completely in possible cases of failure. Thanks to the energy saving it provides, it depreciates the investment made in a short time and thus reduces the operating cost. All required working operations are managed sensitively by the “freecooling kit” in the device, leaving no need for any user intervention.