What is the moisture content threshold that can initiate corrosion in an air conditioning system?

The moisture content threshold that can initiate corrosion in an air conditioning system is importantly recognized at a level of 100 ppm (parts per million). At this concentration, moisture can combine with other materials in the refrigeration system, such as metal and refrigerants, leading to the formation of acids or other corrosive substances.

Corrosion poses a significant risk to the system's integrity, causing leaks in refrigerant lines, failure of components, and ultimately reducing the efficiency and lifespan of the air conditioning unit. Monitoring and managing moisture levels is critical for maintaining the reliability and performance of refrigeration systems.

Levels below 100 ppm are generally considered less likely to cause immediate corrosion, while levels above this threshold can increase the risk of moisture-related damage significantly. Therefore, understanding this threshold is essential for technicians to prevent long-term issues in air conditioning systems.