A/C Charge by Myself

RustyRatRod said

That makes sense. Thanks. And yes, I read the very FIRST time and UNDERSTOOD when you said with the system OFF.

LOL

Let me ask you this. Is there an advantage in doing it one way as opposed to the other? In other words will one way have a better outcome and possibly make it cool better?

Click to expand...

In most cases simply a time saver, but if you are adding one of these mixed oil/ refrigerant cans, liquid could very well help separation, as in the 410A example above. in AC systems, one thing you DO NOT want to do on a hermetic compressor, is to run the thing with the internals in a vacuum. This can cause electrical problems, corona / flash over, etc, as well as quickly building heat in the compressor, which is cooled by returning refrigerant to the "can" of the compressor.