Final answer:
Non-condensable and moisture are removed from a refrigeration system through a process called purging using a purge unit.
Step-by-step explanation:
In a refrigeration system, non-condensable and moisture are removed through a process called purging. Purging involves removing gases and moisture from the refrigerant system to prevent them from interfering with the system's performance.
Non-condensable gases, such as air or other impurities, can accumulate in the refrigeration system and reduce the efficiency of heat transfer. Moisture can lead to ice formation and corrosion.
To remove non-condensable gases and moisture, a purge unit is used. The purge unit removes these substances by creating a vacuum and removing the gases and moisture through an exhaust system.