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Which risk increases when the thermal expansion valve malfunctions within an industrial refrigerator?

A)Compressor liquid slugging occurs
B)Lower evaporator superheat develops
C)Condenser pressure significantly decreases
D)Increased refrigerant oil circulation

💡 Explanation

Compressor liquid slugging arises in this scenario because the thermal expansion valve failing open allows excess liquid refrigerant into the evaporator, therefore incompletely vaporizing. This causes liquid refrigerant to enter the compressor, rather than only superheated vapor, damaging it.

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