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← TechnologyWhich outcome occurs when a capillary tube becomes clogged within a residential split-system air conditioner using R-410A refrigerant?
A)Evaporator coil freezes excessively.✓
B)Compressor overheats considerably.
C)Condenser pressure declines modestly.
D)Superheat remains relatively steady.
💡 Explanation
Excessive ice forms on the evaporator because refrigerant flow decreases from the blockage, employing the Joule-Thomson effect, causing the evaporator temperature to drop below freezing. Therefore, evaporator coil freezes, rather than the system's other processes being mildly impacted if flow was consistent.
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