If you’re shopping for a new air conditioner, you may hear about a change in refrigerants. Under federal rules, new residential and light-commercial AC systems are moving away from R-410A to refrigerants with a much lower global warming potential — most commonly R-454B and R-32. Here’s what that means for Miami-Dade homeowners.
Why the refrigerant is changing
The U.S. Environmental Protection Agency is phasing down hydrofluorocarbons (HFCs) under the American Innovation and Manufacturing (AIM) Act. R-410A, the refrigerant used in most systems installed over the last decade and a half, has a high global warming potential. Manufacturers have redesigned their equipment around newer refrigerants to meet the rules.
Does my current R-410A system have to be replaced?
No. Existing systems can continue to operate and be serviced. The change affects which new equipment is manufactured and installed. However, as the transition continues, the supply of R-410A for repairs is expected to tighten, which may make major refrigerant-related repairs on older systems more expensive over time.
What’s different about the new systems?
- Different refrigerant, different equipment: the new refrigerants are not drop-in replacements for R-410A. A new outdoor unit is designed for a specific refrigerant, and indoor components must be matched.
- New safety classification: R-454B and R-32 are classified as “mildly flammable” (A2L). Equipment includes built-in safeguards such as leak detection, and installers follow updated codes and procedures.
- Efficiency: new systems are designed to meet current federal efficiency standards for the Southeast region.
What this means if you’re replacing your AC
If your system is older and needs a major repair — such as a compressor or coil — it’s worth comparing the cost of the repair against a replacement with a new-refrigerant system. In a full replacement, the outdoor unit and the matching indoor components are typically replaced together so the system works as designed. Read our guide on whether to repair or replace your AC.
Bottom line
There’s no need to panic about an existing R-410A system that’s working well. But if you’re planning a replacement, choose a licensed contractor who is experienced with the new refrigerants and current code requirements.
Talk to a Licensed Miami-Dade AC Contractor
Advanced Cooling Inc. has installed air conditioning, ductwork and ventilation systems across Miami-Dade County since 2002. We are a Florida Certified Air Conditioning Contractor (License CAC1821074) and focus on installation and replacement work for homeowners, business owners, property managers and general contractors.
Ready to plan your project? Call (305) 519-6560 or email [email protected], or fill out our online estimate form, to request an estimate, or learn more about our AC System Replacement service.