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Where to Place the Micron Gauge - Short #168
In this short podcast, Bryan talks about where to place the micron gauge during evacuation and how to think about micron gauge positioning.
Evacuation (deep vacuum) doesn't remove solid contaminants, and vaporizing liquid water is a time-consuming process; its main purpose is to remove water vapor, air, and nitrogen gases from the HVAC/R system. When you pull down below 500 microns and hold that pressure, we can make sure we have a clean, dry, and tight (leak-free) system. As we started using R-410A and POE oil, water in the system became a much bigger issue than it was with mineral oil (it…
The skinny
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