Charging R-22 into an Air Conditioner that is VERY LOW on Refrigerant!

In This HVACR Training Video, I Show the Process of Charging R-22 Refrigerant into an Air Conditioning Unit Condensor in Real-Time Step By Step. The System had a Thermostatic Expansion Valve (TXV) so I Checked the Charge with the Subcooling Method. I added 2lbs of Freon into this Unit and I show each of the steps from connection, purging the air, weighing refrigerant, charging refrigerant from the liquid hose back in, disconnect, and leak test, along with the installation of the service caps. I used 2 valves, 3 port gauges, the ST4 Dual SensorTemp Reader, and a Digital Scale.