Colmac Coil continues its commitment to environmental and worker safety by releasing a new technical bulletin outlining the use of CO2 as a refrigerant. Because of its non-toxic, non-flammable, and natural characteristics, CO2 can be a viable refrigerant for use on the low side of a refrigeration system, where contact with products and people could occur. This paper describes several different setups of ammonia/CO2 cascade refrigeration systems and highlights special concerns and considerations for CO2 evaporators used in these systems.
Read the entire technical bulletin
here.