Courtesy of Emerson It is important to have refrigerant that is free from debris and contaminants, and we control these issues on many different fronts. 1. Proper tubing handling preventing copper shavings, dirt, and water from entering while installing. 2. Flowing nitrogen while brazing to prevent carbon build-up. 3. Deep vacuum of 500 microns or […]

I am like most contractors and techs. I've heard about HEPA for a long time, but I never looked into how it could be integrated into an A/C IAQ strategy until now. First, here's what HEPA is: HEPA (High-Efficiency Particle Arrestance) is an ASME, U.S. DOE standard that specifies a capture rate of 99.97% of […]

In a previous article, we covered the standard way to check capacitors under load. I am now going to give you an even easier test. A properly functioning PSC (permanent split capacitor) or CSCR (capacitor start capacitor run) motor should have a power factor of very close to 1 if they have a properly sized […]