A recovery machine is required for appliances with _ lbs or more of refrigerant.

• A. 10 lbs
• B. 15 lbs
• C. 5 lbs
• D. 20 lbs

Answer: (B)

The main idea here is the point at which you must use a refrigerant recovery machine during service. A recovery machine is required when the appliance contains fifteen pounds or more of refrigerant. This cutoff exists because larger systems hold more refrigerant, so releasing even a portion would have a bigger environmental impact; using a recovery machine helps ensure the refrigerant is captured for recycling or proper disposal instead of being vented. Among common options, fifteen pounds is the trigger value defined by the standard. If an appliance contains less than that, the rule does not require a recovery machine, while larger amounts still fall under the same requirement, with fifteen pounds marking the minimum threshold.