Before opening a vapor compression system for service, what must be done with the refrigerant?

Before opening a vapor compression system for service, what must be done with the refrigerant?

• A. Proceed with service
• B. Increase system pressure
• C. Open the service valve
• D. The refrigerant must be recovered using approved equipment

Answer: (D)

Refrigerant recovery is required before opening a vapor compression system for service. If you break into the refrigerant circuit without removing it first, refrigerant will be released to the atmosphere, which is illegal and harmful to the environment. Using approved recovery equipment, you remove the refrigerant from the system and trap it in approved cylinders so it can be recycled or reclaimed. This step protects the environment, complies with regulations, and prevents costly penalties. Once the refrigerant is recovered, service can proceed and the system can be recharged as needed.

Refrigerant recovery is required before opening a vapor compression system for service. If you break into the refrigerant circuit without removing it first, refrigerant will be released to the atmosphere, which is illegal and harmful to the environment. Using approved recovery equipment, you remove the refrigerant from the system and trap it in approved cylinders so it can be recycled or reclaimed. This step protects the environment, complies with regulations, and prevents costly penalties. Once the refrigerant is recovered, service can proceed and the system can be recharged as needed.