This is a Water chiller, which is cooled by separate air-cooled condensers. The device is intended to cool healthcare facilities, tertiary and industrial buildings and housing facilities. These units may also be connected to emitters, comfort units or air handling units. The equipment is designed for indoor installation in plant rooms, which provides protection from frost and inclement weather. The device is equipped with R407C refrigerant system and compact unit with reduced footprint. The unit is fully covered with removable coated metal panels, which is constructed in house. One or two autonomous refrigerant circuits are there in the device. The device has one to four advance compressors with high efficiency. The heat exchangers are in the form of brazed plate and can be cooled by water. The product includes anti-vibration mounts. Multiple self-regulating functions and CONNECT2 microprocessor-based controller makes this multilingual device user-friendly. The OPERA air-cooled condensers is equipped with AEROCONNECT control. This can communicate with BMS via an RS-485 interface as standard - LON & Ethernet as option.