Pulling a vaccumm on an ac unit?

Question

pulling a vaccumm and recharging an ac unit

Answer 1

If you are asking this question then you need to hire an HVAC tech. This is not a do it yourself project and the cost of equipment verses the frequency with which you'll use it does not warrant the expense verses paying a pro to do it for you.

Answer 2

HVAC Tech.: If you are asking this question then the first thing you need to know is that it would be ILLEGAL for you to attempt to preform this procedure. Up to 5 years in jail and a $ 10,000.00 fine. You need to be certified by the E.P.A. Then you would need special tools to do the job. The cost of those tools plus the training  make it a better choice for you top hire the work done by a professional and get a warranty on parts and labor. Good luck!!

Answer 3

Pressure test with dry nitrogen to make sure that there are no leaks or else the vacuum will be for nothing and you will pull a bunch of moisture in the system and foul up the compressor if any leaks are present.