Danfoss CO2 Adaptive Liquid Management
The Danfoss CO2 Adaptive Liquid Management (CALM) solution combines Danfoss’ liquid ejector and adaptive liquid control case controller algorithm to fully utilize the evaporator surface in display cases and cold rooms. This technology provides, without equipment change, up to 10 percent greater energy efficiency in addition to the energy-saving inherent of CO2 refrigeration.
The CALM solution works by pulling liquid refrigerant from the suction side and injects it into the evaporator of display cases and cold rooms. Danfoss’ CALM solution aims to assist customers in making the transition to climate-friendly refrigerants while saving energy, maintaining system reliability and ensuring food safety.




