What is the purpose of evacuating a refrigeration system?

The purpose of evacuating a refrigeration system centers around removing moisture and air. Evacuation is a crucial process that is conducted prior to charging the system with refrigerant. Moisture and air can lead to various issues such as freezing and corrosion within the system, which can severely damage components like compressors and evaporators.

When moisture combines with refrigerant, it can form acids and other harmful substances that degrade the system's efficiency and longevity. Similarly, air presence can take up space intended for refrigerant and interfere with optimal heat transfer, leading to inefficient system operation. Therefore, effectively removing moisture and air through evacuation ensures the system operates efficiently and safely, maintaining its performance over time.