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← TechnologyWhich outcome occurs when a hermetic refrigeration compressor experiences 'oil logging'?
A)Reduced volumetric efficiency, overheating✓
B)Iced evaporator coil formation
C)Refrigerant overcharge indication
D)Increased subcooling, condenser flooding
💡 Explanation
Oil logging causes impeller inefficiency via reduced suction, because the lubricating oil accumulates inside the evaporator (rather than compressor). This degradation reduces refrigerant flow and causes motor overheating, therefore volumetric efficiency declines, rather than an overcharge or icing.
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