Back To The Future   - Refrigerants Training HFC Phasedown Update . Environment Canada January 1st , 2024 - Reduction and Analysis . Regulations , Codes and Standards Update and Discussion for North America (Canada update) Introduction to A2L's   Opteon™ XL41 (R-454B) Refrigerant Opteon™ XL40 (R-454A) Refrigerant Opteon™ XL20 (R-454C) Refrigerant Questions and Discussion   […]