This course provides an introduction to the control systems used in HVAC‑R equipment. Students learn the functions of thermostats, sensors, relays, contactors, and other control components, as well as basic system sequencing and wiring diagram interpretation. Emphasis is placed on understanding how controls regulate system operation and on developing foundational troubleshooting skills.
Prerequisites
HVA 101 and HVA 110 with a grade of “C” or higher, or concurrent enrollment in HVA 101 and HVA 110, or instructor approval.
1. Describe the purpose and basic types of refrigerant controls used in HVAC R systems.
2. Explain fundamental principles of electromagnetism as they apply to HVAC R electrical components and controls.
3. Describe the operating principles and common applications of electric motors in HVAC R equipment.
4. Identify and analyze basic electrical circuits and control systems used in heating, cooling, and refrigeration applications.
5. Explain the design and operation of commercial HVAC control systems, including their major components and functions.
6. Compare air conditioning and heating control systems based on their operation, applications, and control strategies.