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← TechnologyWhich outcome occurs when a residential air conditioner uses R-410A and experiences refrigerant overcharge?
A)Compressor damage due to liquid floodback✓
B)Evaporator coil freezing from reduced flow
C)Increased energy efficiency from higher pressure
D)System lockout from pressure sensor error
💡 Explanation
When R-410A refrigerant is overcharged, liquid floodback occurs because excess liquid refrigerant returns to the compressor, overwhelming its capacity to vaporize it before entering, harming the compressor. Therefore compressor damage due to liquid results, rather than freezing, efficiency or sensor lockout, which entail different system faults.
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