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Many HFC refrigerants have medium to high GWP and so contribute to global warming if released to the atmosphere.
Legislation and operational best practices have therefore increasingly looked towards reducing the impact of these gases.
One simple option is to convert your existing system to use lower GWP HFCs. In most cases no oil change is necessary, and only minimal system changes are needed.
The table below is a summary of examples where it may be possible to replace an HFC refrigerant with a relatively simple "drop-in" replacement gas with substantially lower GWP. These retrofit gases often require minimal system changes, such as adjustment to expansion valves, and require no oil changes.
|Current gas||Potential replacements||Reduction of GWP|
|R404A||R407A, R407F, R442A||50%|
|R507A||R407A, R407F, R442A||50%|