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Francisco Hernandez HVAC/R Evacuation Quiz April 6, 2022, 3:24 am
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Which Valve Do I Open First?
Testo 557 vacuum gauge and Appion core removal tools shown I've had a change of heart. Back in the early 2000s, during the big construction boom, I did many system startups on residential units for a large company I worked for. When installers ran the line sets prior to startup, they weren't always very careful […]Read more
Capacitor Testing and Replacement Procedure
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