Superheat

[Gary]

I just have sensed sudden urge to color this statement in red, because I think that is most important thing that someone need to check before any other action on RAC system.

Indeed, if I were teaching a course on system trouble shooting, I would not allow my students to use gauges until somewhere near the end of the course.

They would become airflow experts first.

They would be taught how to measure saturation temperatures without gauges.

And then they would be taught to measure saturation temperatures with gauges.

And heaven help the student who tells me what the pressures are. I want to know what the saturation temperatures are. Trouble shooting is about temperatures, not pressures.