SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Evaporator temperature difference (TD) for a refrigerated fixture is:

Box (or entering-air) temperature minus evaporator saturation temperature Condenser saturation temperature minus outdoor air temperature Discharge line temperature minus liquid-line temperature Superheat plus subcooling

Correct Answer:

Box (or entering-air) temperature minus evaporator saturation temperature

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