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Question:

When using recovery or recycling equipment that was manufactured AFTER November 15 1993, you must evacuate a system containing MORE than 200 pounds of CFC-12 to _______ before making a major repair.

A 15 inches of Hg vacuum
Explaination

When using recovery or recycling equipment that was manufactured AFTER November 15 1993, you must evacuate a system containing MORE than 200 pounds of CFC-12 to 15 inches of Hg vacuum before making a major repair.