Consecuencias de no valvar el vacío

In this video, I walk through a critical error some installers make in the field when depending solely on the built-in micron gauge of their NAVAC vacuum pump. I demonstrate the discrepancy between the NAVAC’s displayed reading and the actual micron levels measured with a BlueVac Micron Gauge installed on the liquid line.

At one point during evacuation, the NAVAC gauge reflected 99.5 microns, while the true system reading was closer to 300 microns—a significant difference that could compromise the integrity of the installation.

I also explain the importance of performing a decay test: valving off the vacuum pump from the refrigerant line set to reveal the system’s true micron levels. According to industry standards, microns should not rise more than 500 microns in 10 minutes. If they do, it’s a strong indication of excess moisture or, in worse cases, a leak that will cause microns to keep climbing indefinitely.

⚡ Key Takeaways:
• Never rely solely on your vacuum pump’s built-in micron gauge.
• Always confirm system microns with a dedicated, properly placed micron gauge.
• Conduct a decay test to validate the vacuum and ensure long-term system reliability.
• Protect your customers by applying best practices that lead to better performance and fewer callbacks.

Staying sharp in our trade means never cutting corners. The reliability and long-term satisfaction of our customers depend on us doing things the right way.

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Видео Consecuencias de no valvar el vacío канала Nelson's HVAC, LLC