SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

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A technician measures 76 psig suction pressure on an R-404A medium-temperature case. The P/T chart saturation temperature at 76 psig is 20°F. The suction-line temperature at the evaporator outlet is 32°F. What is the evaporator superheat?

12°F 20°F 32°F 52°F

Correct Answer:

12°F

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