This course will continue building upon the skills learned while taking the Level 1 and Level 2 classes. Students will begin to focus on troubleshooting techniques and HVAC controls centered on refrigeration and ductwork in residential and commercial settings. Covered topics include Fasteners, Hardware and Wiring Terminations, Control Circuit and Motor Troubleshooting, Troubleshooting Cooling, Troubleshooting Heat Pumps, Troubleshooting Gas Heating, Troubleshooting Oil Heating, Troubleshooting Accessories, Zoning, Ductless, and Variable Refrigerant Flow Systems, Commercial Hydronic Systems, Steam Systems, Retail Refrigeration Systems, and Customer Relations.
The textbook is NCCER’s HVAC Level 3 Trainee Guide 5th ed. (ISBN: 978-0-13-518-510-0)