Commercial HVAC · Birmingham, AL

Refrigerant Phase-Down Timeline for Building Owners

The reference building owners use to track EPA AIM Act refrigerant phase-down against commercial equipment lifecycle. Maps R-22 history, R-410A current state, R-454B and R-32 transition, and the retrofit-versus-replacement decision for chiller, RTU, and VRF equipment. Includes 2024-2036 timeline milestones.

Free resource

The reference building owners use to track EPA AIM Act refrigerant phase-down against commercial equipment lifecycle. Maps R-22 history, R-410A current state, R-454B and R-32 transition, and the retrofit-versus-replacement decision for chiller, RTU, and VRF equipment. Includes 2024-2036 timeline milestones.

What this PDF covers.

Sources cited inside the PDF: <a href="https://www.epa.gov/climate-hfcs-reduction/aim-act" style="color:var(--warm)" rel="noopener">EPA AIM Act (Technology Transitions Rule)</a>; ASHRAE Position Document on Refrigerants; <a href="https://www.ahrinet.org" style="color:var(--warm)" rel="noopener">AHRI</a> refrigerant transition guidance; <a href="https://www.ashrae.org/technical-resources/standards-and-guidelines" style="color:var(--warm)" rel="noopener">ASHRAE Standard 15-2022</a>.

Free resource

Refrigerant Phase-Down Timeline for Building Owners

The reference building owners use to track EPA AIM Act refrigerant phase-down against commercial equipment lifecycle. Maps R-22 history, R-410A current state, R-454B and R-32 transition, and the retrofit-versus-replacement decision for chiller, RTU, and VRF equipment. Includes 2024-2036 timeline milestones.

  • R-22 phase-out history and retrofit lessons
  • R-410A current state and phase-down schedule
  • R-454B and R-32 low-GWP replacement refrigerants
  • Retrofit vs replacement decision framework
  • Commercial equipment considerations (chiller, RTU, VRF)
  • EPA AIM Act timeline milestones 2025-2036
  • ASHRAE 15 A2L refrigerant service protocol updates

Download the Refrigerant Timeline PDF

Delivered by email. No phone call. Commercial buyers only.

No phone call. We use your email only to deliver this resource and follow up if you request it.

Why we publish this

Useful for building owners. Also useful for us.

Commercial HVAC buyers evaluate vendors on credential documentation and operational competence — not advertising. Publishing the same reference material we use internally is cheaper than paid acquisition and better-aligned with the customers we actually want. If you download this, walk your building with it, and decide we are worth a conversation, our dispatch line is (205) 206-6606.

Read our other commercial HVAC guides →

Related verticals

Where this resource applies.

Request Dispatch

Tell us what's down.

Commercial HVAC only. Submit the form and a dispatch coordinator follows up by email. For active outages, call (205) 206-6606.

  • RTU, chiller, VRF, commercial refrigeration
  • After-hours and weekend dispatch
  • Preventive maintenance contracts
  • Portfolio property management

Commercial dispatch request

We email confirmation within business hours. For active outages, call the line above.