By studying and understanding the basic principles of refrigeration, you will be able to understand any type of refrigeration system you might encounter. For any mechanical refrigeration system, the principles and essential components are the same no matter how big or small, or how they are packaged together.
Surprising to many who thought refrigeration was a recent invention of the last century, artificial refrigeration's roots actually reach back to William Cullen at the University of Glasgon in 1748. Unfortunately, the potential benefits his great discovery offered were never realized in his lifetime.
Servicing and maintaining your refrigeration system should only be performed by certified and trained technicians. Anyone working with refrigerants, or around refrigeration systems, should always follow these safety tips.