What Refrigerant Will Be Used In 2025. Chiller rooms installed with new chillers beginning in 2025 will require ventilation systems designed for replacement refrigerants. Examples include r1233zd (e), r1234yf, r1234ze (e) and blends such as r513a, r514a, r452b and r454b.
The montreal protocol has undergone six amendments: A significant shift toward natural refrigerants like ammonia, co2, and hydrocarbons is expected to dominate the scene.