If the system pressure is 0 psig after installing a refrigerant recovery fitting, what should be done?

• A. Recover the refrigerant
• B. Re-pressurize the system
• C. Leave the system as is
• D. Refrigerant recovery is not required

Answer: (D)

When a refrigerant recovery fitting is installed and the system pressure reads 0 psig, it indicates that there is no refrigerant present in the system. Therefore, recovery of refrigerant is not necessary because there is nothing to recover.

In this situation, proper procedures dictate that technicians should not needlessly attempt to recover refrigerant from a system that is already devoid of refrigerant. Recovery processes are designed to remove and store refrigerant from systems when it is present, but in the absence of refrigerant, initiating recovery would be unnecessary.

Other options imply that actions should be taken to either recover refrigerant or re-pressurize the system, but if the pressure is at 0 psig, these actions are not warranted and could potentially lead to unsafe practices or wasted resources. The appropriate response is to recognize that no recovery is required since the system is already empty.