Which contaminants can be found in recovered refrigerant?

Recovered refrigerant can contain various contaminants that can compromise system efficiency and safety. The presence of carbon and water in recovered refrigerant is particularly relevant due to their common occurrence in the refrigeration cycle.

When refrigerants are recovered, they may absorb moisture from the air which can lead to water contamination. Water in a refrigerant system can cause issues such as corrosion, acid formation, and decreased efficiency, ultimately impairing the function of the system and potentially leading to failure.

Additionally, carbon can enter the refrigerant during the operation and servicing process. For instance, it may be introduced through incomplete combustion processes, or from wear and tear of mechanical components, leading to carbon particulates or carbon dioxide present in the recovered refrigerant.

These contaminants not only affect the performance of the refrigerant but can also impede the proper functioning of recovery systems and impact the quality of the refrigerant when it is reclaimed and reused. Understanding these potential contaminants is crucial for professionals in the HVAC field to ensure proper handling of refrigerants and mitigate risks associated with their improper recovery and use.