What is the main function of a refrigerant recovery machine?

• A. To add refrigerant to a system.
• B. To remove refrigerant from a system and transfer it to a recovery cylinder without venting to the atmosphere.
• C. To measure refrigerant purity.
• D. To detect leaks.

Answer: (B)

The main function of a refrigerant recovery machine is to remove refrigerant from a system and transfer it to a recovery cylinder without venting to the atmosphere. This keeps refrigerants from being released into the air, which protects the environment and complies with regulations. It’s not used to add refrigerant, measure purity, or detect leaks, which are handled by other tools.