System dependent recovery is described as

• A. Active recovery using external equipment
• B. Passive uses the compressor and can be used for appliances with under 15 lbs of refrigerant
• C. Requires full evacuation
• D. Only for large systems

Answer: (B)

System-dependent recovery uses the appliance’s own compressor to move refrigerant into the recovery cylinder, so the recovery process relies on the unit being recovered rather than a separate recovery machine. This is considered a passive approach because no dedicated recovery unit’s compressor is used. It’s appropriate for appliances with a small refrigerant charge, typically under 15 pounds, where the system’s own compressor can handle the recovery without a separate machine. For larger systems or when the appliance’s compressor can’t be used, a self-contained recovery unit with its own compressor is required. So the description that it’s passive, uses the system’s compressor, and is suitable for under 15 pounds matches the concept of system-dependent recovery.