What is a key requirement for refrigerant recovery systems?

A key requirement for refrigerant recovery systems is that they must be certified for all types of refrigerants. This certification ensures that the equipment is capable of safely and effectively handling different refrigerants, each of which may have unique properties and handling requirements. Various refrigerants can have different pressures, chemical compositions, and environmental impacts, so it’s essential that a recovery system can accommodate this diversity.

Moreover, being certified for multiple refrigerants means the equipment is equipped with the necessary technology and engineering standards to prevent leaks and ensure efficient recovery, thus protecting both the technician and the environment. This adaptability is critical in an industry where refrigerants are often changed or updated in response to regulatory and environmental considerations.

The other options do not meet these essential requirements for a recovery system. For instance, limiting recovery systems only to R-12 or requiring electric power exclusively would significantly restrict their applicability and safety in diverse situations. Additionally, using gauges that only read in Celsius does not address the broader need for multi-refrigerant compatibility.