How often should refrigerants be tested for purity before reuse?

Testing refrigerants for purity before reuse is crucial for the efficiency and longevity of HVAC systems. Refrigerants can become contaminated over time, especially if they've been recovered from a malfunctioning system. Contaminants can include moisture, air, and other refrigerants, which can cause corrosion and decreased efficiency in the cooling system.

By performing purity tests every time before use, technicians can ensure that the refrigerant meets the required specifications for safe and effective operation. This practice helps prevent system damage and enhances overall performance, ensuring that the HVAC system operates efficiently and reliably. Regular testing is part of best practices in the HVAC industry, promoting safety and compliance with environmental regulations.