Theory and troubleshooting using short modules packed with images to make learning quick and easy.
Lessons on the refrigeration cycle, heat movement, and superheat and subcooling. For students and working technicians learning refrigeration theory and checks.
Air conditioners and walk-in coolers do not create cold. They remove heat from an area where you do not want it and dump it somewhere where it does not matter. To move that heat, the system circulates refrigerant through a closed loop of copper tubing. By changing the pressure of the refrigerant, the system forces…
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…