R454B Freon 20 lb. Jug for AC Mini Splits & Central Systems
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There are several brands being marketed as R-410A. Brands vary based on our suppliers but the chemical makeup does not. The more commonly known are Suva R-410A by DuPont and Puron by Carrier. These and others have the same ASHRAE number R-410A. Important Note: R-410A can only be used in equipment designed for R-410A. R-410A cannot be used to retrofit existing R-22 a/c equipment due to significantly higher operating pressures and much higher cooling capacity as outlined in the chart below. To...
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Description
Specification
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R-454B (sold as Opteon XL41 or Puron Advance) is a lower-GWP, mildly flammable (A2L) refrigerant replacing R-410A in new HVAC systems to meet environmental regulations. It is a blend of 68.9% R-32 and 31.1% R-1234yf with a 78% lower GWP (466) than R-410A, offering higher efficiency and better performance.
Key Information on R-454B
- Purpose: Primarily replaces R-410A in residential, commercial air conditioning, and heat pumps.
- Safety Class: ASHRAE Class A2L (Lower toxicity, "mildly flammable").
- Performance: Features higher energy efficiency and capacity compared to R-410A.
- Physical Properties: Requires POE oil, is a zeotropic blend with a small (~2.1°F) temperature glide.
- Handling: Requires specialized tools (e.g., ignition-proof vacuum pumps) and, in the U.S., features left-hand thread valves on containers to prevent accidental misuse.
- Mandate: Phased in due to the American Innovation and Manufacturing (AIM) Act, which restricts high-GWP refrigerants.
Key Differences from R-410A
- Lower GWP: 466 vs 2088 for R-410A.
- Safety: R-410A is A1 (non-flammable), while R-454B is A2L (mildly flammable).
- Components: R-454B is a blend, making it necessary to charge as a liquid to prevent component separation.
- Equipment Changes: New systems require updated, compatible components (like sensors for leaks).
R454B is the next-generation refrigerant being adopted as the primary replacement for R-410A in residential and light commercial HVAC systems, such as air conditioners and heat pumps. Often marketed under trade names like Opteon XL41 or Puron Advance, it is a blend of R-32 (68.9%) and R-1234yf (31.1%).
Key Specifications and Benefits
- Low Climate Impact: It has a Global Warming Potential (GWP) of 466, which is approximately 78% lower than R-410A (~2,088).
- Ozone Safety: It has an Ozone Depletion Potential (ODP) of zero.
- Energy Efficiency: Systems designed for R454B are estimated to be 2–3% more efficient than their R-410A predecessors.
- Performance: It operates at similar temperatures and pressures to R-410A, allowing manufacturers to adapt equipment designs with minimal modifications.
Refrigerant R454b | A Guide to Refrigerant R454B and R32 - MEP Academy
- Safety and Handling
- Flammability Class: Classified as A2L (mildly flammable). While it is more flammable than the non-flammable R-410A (A1), it is difficult to ignite and has a slow flame spread.
- Equipment Features: New R454B systems often include leak detection sensors and mitigation systems (like automatic fans) to safely dissipate refrigerant in the event of a leak.
- Container Identification: In the U.S., R454B cylinders are typically identified by a red band or are painted red to signal flammability, and they use left-hand thread valves to prevent accidental cross-contamination with other refrigerants.
The Industry Transition
- Mandates: The shift is driven by the EPA's AIM Act, which mandates a phasedown of high-GWP HFCs. As of January 1, 2025, manufacturers are generally prohibited from building new residential systems using R-410A.
- Compatibility: R454B is not a drop-in replacement. You cannot put R454B into an existing R-410A system; the equipment must be specifically designed for it.
We are not allowed to ship ANY refrigerant to Canada, Alaska, Hawaii, & PR.
| Title | R454B Freon 20 lb. Jug for AC Mini Splits & Central Systems |
|---|---|
| Brand | RGAS/Honeywell |
| Category | Freons & Adapters |
| SKU | R454B |
| Condition | new |
| UPC | 066249800132 |
| MPN | R454B |
