Air conditioner question

High side pressure can get up to 325-350. How much pressure you got? Not enough

 

You can adjust your pressure switch to a higher pressure.

That's why we always used Nitrogen with a regulator. No moisture, high pressure

 

I’m lost here. How does the shop air compressor have anything to do with leaking Freon?

 

He's using shop air pressure to try to find his leak, but they're usually cut to 115-125 from the factory.

That's often not enough pressure to find a leak

 

I have never heard of anyone pressurizing an A/C system with an air compressor, would that raw air contaminate the system?

 

Definitely gonna put a bunch of moisture in it. It'll need a new dryer.

 

Yes shop air will put moisture in the lines. A new drier is a must. In my opinion anytime you have one open it’s best to do a drier and vacuum it. Moisture boils in a vacuum at like 70 degrees that’s the whole purpose of pulling a vacuum.