What must be done to extract refrigerant from a system?

To extract refrigerant from a system, the correct action is to recover the refrigerant. Recovery refers to the process of removing refrigerant from the appliance and storing it in an approved container. This is a crucial step in handling refrigerants because it ensures that they are not released into the atmosphere, which can be harmful to the environment and violates regulations. Recovery is typically done using recovery equipment that can safely remove and collect the refrigerant for proper disposal or recycling.

Reclaiming involves reprocessing used refrigerants to meet industry specifications, while discarding refrigerants generally refers to the improper disposal, which is not compliant with environmental laws. Neutralizing is not a relevant term in the context of refrigerant extraction, as it suggests a chemical transformation rather than the physical process of recovering refrigerant. Therefore, recovery is the appropriate and mandated procedure for extracting refrigerants safely and legally from systems.