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← TechnologyWhich consequence results when an HVAC system using R-410A refrigerant intakes non-condensable gases like atmospheric air?
A)Increased compressor discharge temperature✓
B)Decreased superheat at the evaporator
C)Reduced subcooling at the condenser
D)Lowered expansion valve inlet pressure
💡 Explanation
Elevated discharge temperature results from the presence of non-condensable gases because increased partial pressures raise the overall system pressure for a given temperature, overworking compression. Therefore, compressor overheating occurs, rather than improved evaporator or condenser performance due to this contamination.
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