Unlike many trades, refrigeration is uniquely challenging and interesting. The thing that makes this such a challenge is the fact that the process takes place out of sight. Solving refrigeration problems takes on a kind of nerdy "who-done-it" process. You can't see with your eyes what is going on, so you have to rely on test instruments, reference data, symptoms, and a "solid base" understanding of refrigeration theory to be able to troubleshoot problems.
We've seen valuable refrigeration equipment destroyed because so-called "technicians" didn't know what they were doing. We've also seen HVAC technicians condemn perfectly good equipment because they didn't have that "solid base" understanding of refrigeration that would have allowed them to find the real problem.
Many successful refrigeration technicians mentally put themselves into the process. They start to think like a molecule of refrigerant. They visualize themselves racing through the various circuits of a refrigeration system, picking up heat energy here, giving off heat energy there, changing from a liquid to a gas, and visa-versa. They compare what is happening with what should be happening. It's this "think like a molecule of refrigerant" that allows them to solve the problems that others can't.
"Refrigeration with EPA Certification" is a "Solid Base" 4 evening 16 hour fundamentals course that is loaded with useful information. For the duration of each class, we hammer home refrigeration theory until every person starts thinking like that molecule of refrigerant. We cover every nook and cranny of the typical air conditioner until we know the systems inside and out. The meaning of terms like saturation, super heat, sub cooling, enthalpy, slugging, fixed bore metering devices, thermal expansion valves, pressure drops, and flash gas will become crystal clear. The fifth evening (4 hours) will be for final review of EPA regulations, and taking the EPA test.
In Depth Study of the Refrigeration Cycle
EPA Prep & test
This course will consist of 5 evening classes nights from about 5:00 - 9:00PM