If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, what statement is true as it relates to preparing a refrigeration system for lay-up?

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The refrigeration system should be pumped down so that the entire refrigerant charge is stored and isolated in the receiver tank.

Answer

The refrigeration system should be left in an idle condition with the refrigerant charge dispersed throughout the system.

Answer

The refrigeration system should be evacuated with a deep-vacuum pump so that the entire refrigerant charge is transferred to the atmosphere.

Answer

The refrigeration system should be evacuated with a recovery unit so that the entire refrigerant charge is transferred to a recovery cylinder.

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