My friend Craig with AC service tech llc. also has a great video on Pressure switches.
• How HVAC Refrigerant Pressure Switche...
My friend Bryan Orr with HVAC school https://www.achrnews.com/articles/862...
https://hvacrschool.com/theotherpre...
achr news articles
https://www.achrnews.com/articles/126...
https://www.achrnews.com/articles/142...