New Refrigerant To Replace 410a 2025 Pdf. Starting in 2025, the environmental protection agency (epa) requires that residential and smaller commercial ac units and heat pumps in the u.s. New ac units produced in 2023 and beyond must have a minimum seer (seasonal.

You do not have to replace any equipment because of the. Starting in 2025, the environmental protection agency (epa) requires that residential and smaller commercial ac units and heat pumps in the u.s.