Which refrigerant is specifically mentioned in the recovery procedures for larger quantities?

The mention of R-22 in the recovery procedures for larger quantities can be attributed to its widespread use in residential and commercial air conditioning systems before newer refrigerants became popular. R-22, also known as HCFC-22, has specific handling and recovery procedures due to its ozone-depleting properties. The refrigerant has been phased down as per the Montreal Protocol, but it remains essential to understand its recovery process, especially for systems that may still be in operation and contain larger quantities.

During recovery, it is critical to follow the established procedures for R-22 to ensure that it is properly removed from the system without releasing it into the atmosphere, which aligns with environmental regulations. The procedures are designed to minimize risks associated with handling refrigerants and to protect both technicians and the environment from the harmful effects of ozone depletion.

Other refrigerants, such as R-410A, R-134A, and R-12, are either newer alternatives or phased-out substances, thus not specifically targeted in the recovery procedures when discussing larger quantities in the context of R-22. Understanding the nuances of R-22 handling is crucial for anyone working in the refrigeration industry, especially in systems that predate recent regulations.