Which of the following is not a step in the refrigerant recovery process?

Draining the oil is not a standard step in the refrigerant recovery process. During refrigerant recovery, the primary focus is on safely capturing and containing the refrigerant in a manner that prevents its release into the atmosphere. This involves connecting a recovery machine to the refrigeration system and operating it to remove the refrigerant. Evacuating the system is also essential to ensure that it is completely free of refrigerant before any servicing is done.

Having a certified technician perform the recovery is a critical aspect of ensuring compliance with regulations and safety protocols, as technicians must be trained and certified to handle refrigerants properly. Consequently, while managing oil levels in a refrigeration system is important for maintenance, it is not typically part of the refrigerant recovery steps and is often handled separately during servicing.