Designed for food processing and temperature-controlled storage applications, an air-cooled, low charge ammonia freezer is charged with as little as 0.52 kg/kW of natural refrigerant ammonia. Azanefreezer 2.0 reduces refrigerant charge by up to 96 percent compared to traditional ammonia systems and avoids the need for complex valve stations within the cold storage or food production facility, which removes the requirement for leak detection and ventilation.

A European study from the International Institute of Refrigeration showed average European energy consumption figures for chilled and frozen storage facilities across Europe were about 50 percent higher than the figure declared to be “Best Practice” by the United Kingdom government. However, recent energy performance data analysis for Azanefreezer 2.0, which is manufactured by Star Refrigeration, indicates its annual energy usage is one-third of those guidelines.