Which outcome is most likely when rapid depressurization causes refrigerant phase transitions in an HVAC system?

💡 Explanation

When rapid depressurization occurs, adiabatic expansion causes refrigerant temperature to drop drastically causing frost/ice to form due to water vapor condensation at the expansion valve leading to blockage. Therefore valve icing results, rather than improved efficiency, decreased capacity, or changing superheat which are controlled by alternative factors

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