Low temperature and medium temperature refrigeration systems used in trucks typically use __________ refrigerant.

The choice of refrigerant for low temperature and medium temperature refrigeration systems in trucks is often R-404A, which is a blend of hydrofluorocarbons (HFCs) designed to meet the specific demands of these refrigeration systems. R-404A is favored in transport refrigeration due to its excellent thermodynamic properties, including a low boiling point and high refrigeration capacity, making it efficient for both low and medium temperature applications.

Additionally, R-404A is particularly well-suited for environments where consistent cooling is necessary, such as in trucks transporting perishable goods. Its composition allows it to perform effectively even in varying ambient conditions, making it reliable for mobile refrigeration systems.

Other refrigerants listed, such as R-22, R-134A, and R-410A, may not perform as efficiently in these specific applications due to a combination of factors, such as their thermodynamic properties, regulatory restrictions, and phase-out status. R-22 is being phased out due to its ozone-depleting potential, R-134A is typically used in automotive air conditioning rather than transport refrigeration, and R-410A is primarily used in residential air conditioning systems instead of truck refrigeration applications. Thus, R-404A stands out as