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← TechnologyWhich outcome results when thermostatic expansion valve (TXV) malfunctions in refrigeration system evaporator coils?
A)System overheating from unrestricted flow
B)Evaporator freezing due to reduced load
C)Compressor failure from liquid slugging✓
D)Condenser saturation from increased pressure
💡 Explanation
When a TXV fails open, excessive refrigerant enters the evaporator, because pressure regulation fails, leading to liquid refrigerant entering the compressor ('liquid slugging') and damaging it. Therefore compressor failure results, rather than overheating, freezing, or saturation, which require different refrigerant metering or external pressure issues.
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