R-22 Refrigerant Alternatives

  With the phase-out of R-22, many HVAC professionals are considering alternatives for retrofitting existing systems. One of the most common replacements is R-407C. But can it truly replace R-22? Here's what you need to know.   1. Yes — But Only in Retrofit Applications R-407C is a viable drop-in replacement for R-22 in existing systems, but only with proper modifications. It is not suitable for use in R-22 systems without adjustments. *System must be retrofitted — including oil change to POE and component checks.   2. Similar Performance Cooling capacity and efficiency of R-407C are close to R-22. Works at similar pressures, making it easier to adapt in older systems. However, R-407C is a zeotropic blend, so fractionation may occur if the system leaks and is not recharged properly.   3. Oil Compatibility R-22 systems use mineral oil. R-407C requires POE oil. You must flush and replace the lubricant when converting.   4. Lower Environmental Impact R-407C has zero ozone depletion potential (ODP). GWP (~1,774) is still significant but lower than many alternatives.   5. Widely Available and Cost-Effective R-407C is a mature, proven alternative — easy to source and affordable, making it a popular choice for light commercial and residential retrofits.   R-407C can replace R-22 in existing systems with proper retrofitting. It offers a balance of performance, availability, and compliance, making it a smart choice for HVAC professionals serving aging equipment.   Need help sourcing R-407C or planning a retrofit? Contact our team for B2B pricing and technical support.