Final answer:
It is essential to take measures to help release trapped refrigerant from the compressor oil during refrigerant recovery when using (passive) recovery devices on small appliances with non-operating compressors.
Step-by-step explanation:
When using (passive) recovery devices on small appliances with non-operating compressors, it is essential to take measures to help release trapped refrigerant from the compressor oil during refrigerant recovery. In this situation, the compressor is not operational, which means the refrigerant may be trapped in the oil and cannot be easily recovered without additional measures. Therefore, it is important to ensure proper release of the refrigerant from the oil to maintain the efficiency and effectiveness of the recovery process.