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Vacuum Pump AC Lines and Break the Vacuum with Refrigerant: Setup, Micron Level, Weighing

In this HVAC Training Video, I go over how to properly pull a vacuum, how to test the vacuum for leaks, how to break the vacuum with liquid refrigerant into the liquid line as well as other tips. I also go over why you want to weigh liquid refrigerant into the liquid line instead of the vapor line.

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