As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightly flammable. The industry is also seeing expanded use of some hydrocarbon (A3) refrigerants, such as propane and isobutane. Students and technicians will require additional training for the safe handling and transportation of these refrigerants.

What You Will Learn

This course provides students and practicing technicians with the information and knowledge necessary to safely work with mildly flammable refrigerants.

  • Refrigerant safety
  • Introduction to Low GWP refrigerants
  • Refrigerant properties and characteristics
  • The refrigeration cycle
  • Working with refrigerant blends
  • Proper installation and service guidelines
  • Flammable refrigerant considerations
  • Explanation of the associated codes and standards for A2L refrigerants

If you require any assistance with this online course, please contact HRAI at 1-800-267-2231 or

To Register

Those who would like to register for the online program will need to provide their First and Last Name, Company (optional), Address, City, Province, Postal Code, Telephone Number and an Email Address.  Payment in the amount of $169 + HST will need to be submitted by Visa or Master Card (no visa debit or debit cards accepted).  A receipt and login information will be emailed to those who register and submit payment.