A vacuum pump:? A. Is used to change refrigerant grease. B. Removes moisture from the refrigerant...

A. Is used to change refrigerant grease.

B. Removes moisture from the refrigerant system.

C. Is used to unstop condensate drain lines.
Insulating hot hose down electric fire query?
Answers:    B.
How can i pick a lock door? HELP!?
b...it does this by having the pressure inside the lines lower than marine level nouns pressure. once this is achieved at 0 herg you can remove adjectives the moisture..that is why they require you to verbs a system down to 28 herg. and for the people who do not figure out a vacuum pump is only used for removing moisture not freon.