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← TechnologyWhich outcome arises if refrigeration compressor oil mixes excessively within a scroll compressor using R-410A?
A)Reduced system cooling capacity significantly✓
B)Increased refrigerant sublimation inside tubing
C)Elevated compressor motor winding temperature
D)Faster oil return to the crankcase
💡 Explanation
Reduced cooling happens because oil fouling drastically reduces the heat transfer efficiency of the evaporator coil. This fouling occurs due to the oil's increased viscosity and film resistance rather than efficient refrigerant heat exchange; therefore, reduced system capacity instead of other efficiency effects arises.
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