Every air conditioning system leaks whether it is one ounce per year or one ounce every thousand years. The leaks are caused by cracks, bubbles, impurities, and other flaws in the brazing, joining, or manufacturing process. While they may not be detectable, they are leaks nonetheless and will eventually become detectable given enough time. The pressure, heat, and vibration from normal day-to-day operation is what causes them to become a problem.
Condition Monitoring- Condition monitoring (or, colloquially, CM) is the process of