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. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.

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️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
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