Your  Account:
Extended Learning

HVAC/R Technician


In partnership with ed2go, CSUSM Extended Learning offers an extensive catalog of affordable workforce training programs that you can complete 100% online and on your own schedule. Gain the skills and industry certifications you need to start or advance your career in high-demand fields. Learn from industry experts in a flexible, self-paced format and get personalized support from a dedicated student advisor. Enroll anytime and receive a certificate of completion from CSUSM Extended Learning after successfully completing your program. Some program fees include a voucher for the certification exam.

California has one of the highest needs for HVACR technicians and San Diego County is no exception. If you’re looking to advance your HVACR career, this fully online course will prepare you to earn NATE or HVAC Excellence certification in under 12 months! You’ll master core skills like accurate measurement and conversions, heat carrying capacity, condensation and vaporization, and air weight and value.

Start your career as an HVACR tech

Understand heating, air conditioning and refrigeration and prepare to work as a technician or mechanic to control the temperature, humidity and air quality

Learn from the best

This fully online course is taught by experienced HVACR technicians

Study on Your Time

Online classes are available virtually anytime to fit your busy schedule

No Prerequisites

There are no prerequisites to take this course, however, since this course focuses solely on U.S. domestic freight brokering, it is recommended you are interested in doing business in the United States

Program Details

    Course Dates Registration

    HVAC/R Technician 

    Start any time

    HVACR Registration

    Course Details

    • Classes held online
    • Classes are self-paced and completed in 12 months or less
    • View program fee
    • Learn from industry experts in a flexible, self-paced format
    • Get personalized support from a dedicated student advisor
    • Fees may include voucher for industry certification exam


    Please note: All rates are subject to change without notice.


    Course Objectives

    • Understand basic components of the vapor-compression and refrigeration cycles, functions and characteristics of system refrigerants, piping operations
    • Learn proper installation and operation of HVAC systems
    • Understand EPA laws related to safe handling and transport of refrigerants
    • Proper recovery, recycling, and retrofitting of refrigerants

    Course Topics

    • Safety, Tools and Equipment, and Shop Practices
      • Learn general safety practices as well as how to care for and use all the tools you will come across on the job.  
    • Automatic Controls
      • Understand automatic control components and applications including troubleshooting for basic through more advanced systems.  
    • Electric Motors
      • Gain a full understanding of electric motors including types, applications, controls, and troubleshooting techniques.  
    • Commercial Refrigeration
      • Learn the ins and outs of commercial refrigeration components including evaporators, condensers, compressors, expansion devices, ice machines, special applications and systems, and more.  
    • Air-Conditioning (Cooling)
      • Understand comfort and psychometrics, air distribution and balance, installation, energy auditing, common conditions, troubleshooting techniques, and more.
    • All-Weather Systems
      • Learn about the heat gains and losses that occur in various structures as well as detailed information on both air source and geothermal heat pumps.
    • Domestic Appliances
      • Get detailed information on domestic appliances including refrigerators, freezers, and air conditioners.  
    • Commercial Air-Conditioning and Chilled-Water Systems
      • Learn the ins and out of cooling towers, pumps, and chilled-water systems including operation, maintenance, and troubleshooting for commercial, packaged rooftop, variable refrigerant flow, and variable air volume systems.
    • Simulation Challenge Mode: HVAC
    • Simulation Challenge Mode: Electricity for HVAC

    Mike Baker
    Mike Baker has been an instructor since 2011. He was previously an HVAC Program Director at both Virginia College and Vista College. Baker was a HVAC technician for several decades and has experience hiring, training, and managing HVAC Technicians. He holds numerous HVAC Excellence certifications, several Green Mechanical Council certifications, an EPA 608 Universal certification, and Emerson Climate Technology certifications. He has served as both an HVAC Excellence Instructor and Exam Proctor.

  • FAQ

    What does an HVACR technician do?

    Heating, air conditioning, and refrigeration (HVACR) technicians, also called installers or mechanics, work on the systems that control the temperature, humidity, and quality of the air in our homes, workplaces, and all other types of buildings.

    Do hVACR technicians need a certification?

    Many states require that HVACR technicians have a license before they are able to work independently. NATE and HVAC Excellence certifications are widely recognized both in the field and by customers seeking service.

    Does this course prepare me for certification?

    Yes. This HVACR Technician Certification course will prepare you for the HVAC Excellence Core and Professional Technician certifications exams, the NATE Core and Specialty Test certification exams, and the EPA Section 608 certification exam.

    How long does it take to complete a certified HVACR technician course?

    This Certified HVACR Technician course can be completed in 12 months or less and it will help you:

    • Build a strong foundation of HVACR service, repair, and maintenance
    • Prepare to sit for the NATE certification exams
    • Prepare to sit for the HVAC Excellence certification exams
    • Prepare to sit for the EPA 608 Refrigerant Handling exam

    What services do you offer to active military, veterans and dependents?

    Please visit our military and veteran services page to learn how we can help.

    Call Now:

    (855) 520 - 6806



The employment of HVACR technicians is expected to grow 13% during the next few years, which equals 46,300 new jobs!

Read more

– Bureau of Labor Statistics

– Bureau of Labor Statistics

Learn More

Visit this webpage to learn more. 



Extended Learning

EL Logo


Contact Us

(760) 750-4020

Follow Us