SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Which set of symptoms most strongly indicates an undercharged TXV system?

High suction pressure, low superheat, high subcooling Low suction pressure, high superheat, low subcooling, and possible sight-glass bubbles High head pressure, high subcooling, normal superheat Equalized high- and low-side pressures with the compressor off only

Correct Answer:

Low suction pressure, high superheat, low subcooling, and possible sight-glass bubbles

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