What is a major disadvantage of using water with refrigerants in systems?

Using water with refrigerants in systems can indeed lead to the formation of acids, which is a significant disadvantage. When water is introduced into a refrigeration system that uses certain types of refrigerants, such as those containing chlorine, it can react chemically under specific conditions. This reaction may result in the production of hydrochloric acid or other corrosive substances, which can deteriorate system components, degrade lubricants, and ultimately reduce the efficiency and lifespan of the refrigeration system.

In many instances, the mixing of refrigerants and water can also lead to the formation of harmful solutions that can corrode metal parts, damage seals, and compromise the overall integrity of the system. Thus, while water might seem like a benign addition, its interaction with refrigerants can create hazardous conditions that significantly impair system performance and reliability.