This free online course will explain the basic concepts and core principles of HVAC systems and their components. Want to break into HVAC or sharpen your skills? This HVAC fundamentals course turns confusing heating, ventilation, and air conditioning systems into clear, job-ready know-how. Learn electrical basics, including Ohm’s and Watt’s laws, overload and overcurrent protection, thermostats, airflow and ventilation, as well as refrigeration and mechanical cooling. Ideal for aspiring HVAC technicians and homeowners who want control.
| Course Category | Electronic & Electrical Engineering, Science & the Built Environment |
| Course Type | Online Learning |
| Course Qualification | CPD Certificate |
| Course Duration | 1.5-3 hours |
| Course Fee | Free |
| Entry Requirements | Like all courses on the Alison Free Learning platform this is a free, CPD-accredited course. A Graduate can choose to buy a certificate or diploma upon successful completion of a course, but this is not required or necessary. At Alison we believe that free education, more than anything, has the power to break through boundaries and transform lives. Alison is the world’s largest free online empowerment platform for education and skills training, offering over 5000 CPD accredited courses and a range of impactful career development tools. It is a for-profit social enterprise dedicated to making it possible for anyone, to study anything, anywhere, at any time, for free online, at any subject level. Through our mission, we are a catalyst for positive social change, creating opportunity, prosperity, and equality for everyone. |
| Career Path | What You Will Learn In This Free Course • Distinguish power circuits from control circuits in HVAC systems. • Outline the use of Ohm’s law and Watt’s law in basic HVAC electrical scenarios. • Define overload, overcurrent, and inrush current conditions. • Identify the functions and ratings of fuses, circuit breakers, and other protective devices. • Describe single-phase and three-phase power systems and their common applications. • Explain thermostat operation and correct thermostat placement. • Summarize the operating principles of electric, gas-fired, hydronic, and forced-air heating systems. • List key airflow concepts, including static pressure, velocity pressure, total pressure, and fan types. • State the fundamental cooling principles, relevant gas laws, phase changes, and the DX cooling cycle. |
| Course Code | 7838 |
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