SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Liquid lines are sized primarily to:

Keep pressure drop and velocity low enough that the liquid remains subcooled and does not flash before the metering device Match the suction-line OD in every case Produce 4,000 ft/min velocity for oil return Run completely empty so oil can drain

Correct Answer:

Keep pressure drop and velocity low enough that the liquid remains subcooled and does not flash before the metering device

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