CO2 Transcritical Systems Training Manual 042718

Installation Guidelines ... For additional technical support, please contact the Hussmann Technical Support Center: ... R-407A 0 1920 A1 R-407C 0 1620 A1 R-407F 0 1824* A1 R-408A 0.02 3260 A1 R-410A 0 1920 A1 R448a 0 1273* A1 R449a 0 1397† A1 R-507A 0 3990 A1 R-717 ammonia 0 <1 B2 ...

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An introduction to A2L refrigerants and their use in ...

The main differences between A1 refrigerants, such as R-410A, R-134a, R-407C, and A2L refrigerants such as R-32, HFO R-1234yf and HFO R-1234ze is the ability to propagate a flame. A2L refrigerants will burn, but their burning velocity is below 10cm/s, which is lower than an A3 refrigerant such as