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Which risk increases when a heat pump operates outside design temperature cycle?

A)Compressor failure due to refrigerant flooding
B)Evaporator coil corrosion from acid buildup
C)Expansion valve clogs from oil oxidation
D)Condenser pressure exceeds relief valve rating

💡 Explanation

Refrigerant flooding is the potential failure; this happens because incomplete vaporization results from lower evaporator temperature. Because thermal expansion reduces and latent heat does not account completely evaporate compressed gas, it enters the compressor rather than maintaining design flow; this causes damage.

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