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← ScienceWhich outcome occurs when a refrigeration system's evaporator coil temperature drops excessively at constant load?
A)Refrigerant superheat will excessively increase
B)Compressor motor overheating risk is higher
C)System COP will operate more efficiently
D)Suction line floodback of liquid refrigerant✓
💡 Explanation
Suction line floodback occurs because reduced evaporator temperature minimizes refrigerant boiling, therefore unvaporized liquid refrigerant enters the compressor, rather than superheated vapor, because insufficient energy is applied to complete the phase transition.
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