Superheat vs. Subcooling: What the Numbers Tell You
Mastering the Vitals of the Refrigeration Cycle
If you want to know what is actually happening inside a refrigeration system, you have to look past the pressures. Gauges are a great start, but they only tell half the story. To truly diagnose a system, you need to understand the relationship between temperature and pressure. Superheat and subcooling are the vital signs of any HVAC unit. Whether you are dealing with a residential split system or a commercial chiller, these two numbers will tell you if the system is healthy, starving, or drowning.