Air-cooled QUANTUM chillers from ENGIE Refrigeration can now be equipped with heat recovery, making it possible to reuse up to 100% of the generated waste heat. The first such QUANTUM models are now being deployed by an international industrial group from France. A heat exchanger integrated in the air-cooled QUANTUM chiller as an addition makes it possible to conduct the heat, which is generated during the cold generation process, to a defined heat process such as heating or warm water supply. That means an installation with a refrigeration capacity of 1,300 kilowatts can create a heat capacity of 1,480 kilowatts. The heat generated during the refrigeration process can be used either completely, or partially in what is referred to as mixed mode. As is the case with other aircooled QUANTUM models, the refrigerants R-134a, R-1234ze and R-513A are also suitable for use in chillers with heat recovery.