In the context of HVACR systems, what does 'active recovery' involve?

Active recovery in HVACR systems specifically refers to the process of actively removing refrigerant from a system in an efficient and controlled manner, particularly during servicing or disposal. This involves using recovery equipment that actively pumps the refrigerant out of the system into a storage tank, ensuring that it is not vented into the atmosphere.

This method is crucial for environmental protection and complies with regulations regarding refrigerant management, as it helps prevent the release of potentially harmful refrigerants into the air. Active recovery contrasts with passive methods, which might rely on the refrigerant merely flowing out without the aid of equipment.

Recognizing this, the other options do not accurately capture the definition of active recovery. Pumping refrigerant into a storage tank is indeed a part of the process, but it specifically highlights the 'active' nature of the equipment used to do so, making it the correct interpretation within the context.