This will be a 2-hour long lecture/lab combination class. Some of the time will be spent lecturing using academic course materials. The rest of the time will be spent in a lab setting practicing the application of skills learned in theory. From motor theory to HVAC/R components to wide varieties of electrical diagrams, the course focus is to give the student a strong background in electrical understanding necessary to install and service heating, ventilating, air conditioning and refrigeration systems. Special emphasis will be applied to troubleshooting techniques and skills. We will also introduce the student to special motor types, such as VFDs, stepper motors, and inverter type motors. This course will build upon the knowledge gained in REFG 122. This class may require participation in several field trips for further understanding of the profession. Prerequisite: Satisfactory completion of REFG 122. (S)