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Question:

If you are using a recovery machine manufactured BEFORE November 15, 1993, you must evacuate any low-pressure appliance to ______ before making a major repair.

A 25 inches of Hg vacuum
explanation

If you are using a recovery machine manufactured BEFORE November 15 1993, you must evacuate any low-pressure appliance to 25 inches of Hg vacuum before making a major repair.

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