Engine: General Subjects

1. A The refrigeration system should be evacuated with a deep-vacuum pump so that the entire refrigerant charge is transferred to the atmosphere.
2. B The refrigeration system should be evacuated with a recovery unit so that the entire refrigerant charge is transferred to a recovery cylinder.
3. C The refrigeration system should be left in an idle condition with the refrigerant charge dispersed throughout the system.
4. D The refrigeration system should be pumped down so that the entire refrigerant charge is stored and isolated in the receiver tank.

Tip: press A-D to answer