What characterizes system-dependent or passive recovery equipment?

System-dependent or passive recovery equipment is designed to capture refrigerants directly from an air conditioning or refrigeration system without the need for an external power source or vacuum pump. This type of equipment relies on the differences in pressure between the refrigerant in the system and the recovery unit to move the refrigerant into a storage container.

Specifically, it captures refrigerant into a non-pressurized container, meaning that the refrigerant is transferred into a container that is not pressurized during the recovery process. This characteristic ensures that the unit can safely and effectively recover the refrigerant from the system based on its own operational principles.

Other characteristics of system-dependent recovery equipment emphasize its simplicity and reliance on the existing system pressures rather than independent mechanical processes, making it effective for use with certain types of refrigerants and systems.