Using an HVAC Pinch Off Tool to Braze Service Ports onto an Appliance!

In this HVACR video, I go over the use of a pinch-off tool used for refrigeration and how a technician can install this onto a process stub of an appliance such as a refrigerator or a window air conditioner. This can be done by silver soldering or brazing but the section that contains the refrigerant must not get hot. The reason that some techs use this tool is so that they can gain access to the system's pressure without recovering the refrigerant first but also have a permanent fitting installed. Most bolt-on service valves are not rated to be left on the equipment. If you are recovering the refrigerant then a bolt-on or an adjustable piercing valve tool can be used.