Is it permissible to recover multiple types of refrigerant gases in a single recovery cylinder?

It is important to understand the handling and recovery of refrigerants in compliance with safety regulations and best practices in the HVAC field. Recovering refrigerants into a recovery cylinder is specifically designed for containing a single type of refrigerant. This practice ensures the integrity of the refrigerant, avoids contamination, and allows for proper recycling or disposal.

Using a recovery cylinder for multiple types of refrigerants can lead to harmful mixtures, which can create unsafe conditions and complicate purification processes. Regulations from organizations such as the Environmental Protection Agency (EPA) and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) emphasize the importance of proper segregation when it comes to refrigerants.

Thus, the correct understanding of these practices is that only one type of refrigerant should be contained within a single recovery cylinder to maintain safety standards and ensure effectiveness during recovery and subsequent handling.