Final Answer:
When using a passive system-dependent recovery process, you should access both the high and low side of the system for the refrigerant recovery if the compressor is non-functional.
Step-by-step explanation:
In refrigeration systems, a passive system-dependent recovery process involves relying on the system's inherent characteristics for the recovery of refrigerants. When the compressor is non-functional, accessing both the high and low sides of the system becomes crucial. The high side typically contains liquid refrigerant, while the low side contains vapor refrigerant. In a non-functional compressor scenario, accessing both sides allows for a comprehensive recovery, ensuring that both liquid and vapor refrigerants are effectively removed from the system.
This approach is essential for environmental and safety reasons, as it helps prevent the release of refrigerants, which may be harmful to the environment, into the atmosphere during maintenance or repair activities.