SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

In a pump-down control scheme, opening of the space thermostat typically:

Kills compressor power immediately while leaving the liquid-line solenoid energized De-energizes the liquid-line solenoid; the compressor continues to run until a low-pressure control opens at the cut-out setting Opens the hot-gas solenoid and floods the compressor Bypasses the high-pressure control for faster pull-down

Correct Answer:

De-energizes the liquid-line solenoid; the compressor continues to run until a low-pressure control opens at the cut-out setting

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