This is an excellent program for a person with many different interests. Refrigeration and Air Conditioning requires a variety of skills in mechanical systems, electrical/electronic systems and system troubleshooting. You learn to repair and maintain commercial and industrial refrigeration and air conditioning systems. You also learn to install refrigerant vapor lines, liquid lines and other kinds of piping. Basic skills in oxy-fuel brazing are covered, as well as the design, installation and troubleshooting of electrical circuits and controls.