Low GWP Refrigerant Safety: Flammable and Mildly Flammable Refrigerants
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.
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
The Low GWP Refrigerant Safety - A2L Refrigerants examination validates that a person possesses the knowledge to safely work with low GWP refrigerants and helps reduce liability. The 50-question, closed-book exam covers:
General Flammable Refrigerant Safety Knowledge
Core ACR Knowledge
Flammable System Service Safety
Flammable System Installation Safety
Members: $249
Non-Members: $279
Retest: $179
Date: June 23, 2025 Breakfast: 7:00 a.m. - 8 a.m. Time: 8:00 a.m. - 2:00 p.m.
Take advantage of same-day certification with the EPA 608 Universal Certification Exam covering Types I, II, and III. Testing will begin promptly at 2:00 p.m.—no late entry permitted. All exam fees and materials are included. Participants are responsible for preparing in advance (study links will be provided upon registration).
Upgrade to the bundle and save!
Members: $299 (A2L + EPA)
Register for the A2L Training Course, and during checkout, select the Member/Non-Member Bundle - A2L + EPA to receive the bundle discount.
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