Existing-system service and a whole new 2026 split system are not the same decision. Record what is actually being replaced, identify the refrigerant and require exact equipment evidence before signing.
EPA’s current homeowner guidance says existing equipment is not automatically forced out of service. Its Technology Transitions FAQ also says a new residential split system installed after January 1, 2026 must use refrigerant with GWP below 700.
No. EPA says existing systems may continue to operate and may be repaired over time. A faulty R-410A component can be replaced with a similar component. A whole new split system installed after January 1, 2026 is a different regulatory case.
Not by itself. EPA says replacing both the condensing unit and indoor coil creates a new residential split system even when the refrigerant lines remain.
No. They are lower-GWP refrigerants listed for relevant equipment subject to use conditions, but the exact matched equipment, sizing, controls, installation, technician qualifications and local code still require verification.
Rules can change and local codes add requirements. This screen uses EPA’s current HFC phasedown FAQ, residential/light-commercial SNAP listings and homeowner refrigerant FAQ. It does not interpret a specific permit, approve an installation or authorize refrigerant work.