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2 Refrigerants and applications Application New system refrigerants Traditional refrigerants Retrofit / drop-in refrigerants The chart presents an overview of main alternative refrigerants to CFCs and HCFCs in diverse RAC applications. For each application, there are four lists of refrigerants: Transitional Longer term Domestic refrigeration R12 R401A, R401C, R405A, R406A, R414A, R414B, R415B R426A, R430A, R435A, R436A*, R436B*, R437A R134a, R600a* Stand alone retail food display and vending R12 R401A, R401C, R405A, R406A, R409A (HT), R414A, R414B, R415B, R416A (HT), R420A (HT) R426A, R429A (HT), R430A, R435A, R436A*, R436B*, R437A (LT) R600a*, R134a, R423A, R435A, R436A*, R436B*, R510A R22, R502 R408A (HT), R411A, R411B, R412A, R415A, R418A R290*, R417A, R419A (HT), R422B, R422D, R424A, R431A, R438A R290*, R404A, R407A/B/D/E, R421A, R421B, R427A, R433A/B/C, R507A, R744 Condensing Units R502 R408A (HT), R411A, R411B, R412A, R415A, R418A R417A, R419A (HT), R422B, R422D, R424A, R431A, R438A R404A, R407A/B/D/E, R421A, R421B, R427A, R433A/B/C, R507A, R744 Large Supermarket Systems R22 R502 R408A (HT), R411A, R411B, R412A, R415A, R418A R417A, R419A (HT), R422B, R422D, R424A, R431A, R438A R404A, R407A/B/D/E, R421A, R421B, R427A, R433A/B/C, R507A, R744, Indirect systems (using R290*, R1270*, R717*) Cold Storage R502 R22 R717 R408A (HT), R411A, R411B, R412A, R415A, R418A R417A, R419A (HT), R422B, R422D, R424A, R431A, R438A R404A, R407A/B/D/E, R421A, R421B, R427A, R433A/B/C, R507A, R744, Indirect systems (using R290*, R1270*), R717* • • Traditional refrigerants, what would usually have been used prior to the Montreal Protocol. Retrofit / drop-in refrigerants, are refrigerants that have been developed, or can be used in existing systems that contained the traditional refrigerants, and typically contain some HC component so that they are soluble with existing mineral oils. These have been divided into two further categories: Transitional refrigerants that comprise some HCFCs, and are therefore still controlled by the Montreal Protocol, and should only considered for short-term use in systems that contained CFCs. Long-term refrigerants that do not comprise any ozone depleting substances, and can be considered to be unrestricted. New system refrigerants, which include refrigerants that are also not restricted by the Montreal Protocol and are expected to be applicable for the long term. • • • 53 RefrigerantsPDF Image | Manual for Refrigeration Servicing Technicians
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