R22 and alternative refrigerants
The following table shows all available data for R22 and alternative refrigerants.
ODP: ozone depletion potential
GWP: global warming potential according to EN 378:2017; AR4: Fourth Assessment Report of the IPCC, AR5: Fifth Assessment Report of the IPCC
pract. limit AEL: assigned exposure limit according to EN 378:2017
Temperature glide: Total glide from bubble to dew line, based on 1.013 bar. Real glide depends on operating conditions.
Relative refr. capacity and discharge temp. increase: Reference refrigerants are those listed under "Substitute for", performance data are average values based on calorimeter tests.
(H): high temperature application
(M): medium temperature application
(L): low temperature application
Data is based on publications of various refrigerant manufacturers and is subject to change.
R22 | R502 | R404A | R507A | R407A | R407F | R407H | R410A | R407C | R417A | R417B | R422A | R422D | R427A | R438A | R290 | R1270 | R717 | R723 | R744 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Refrigerant | R22 | R502 | R404A | R507A | R407A | R407F | R407H | R410A | R407C | R417A | R417B | R422A | R422D | R427A | R438A | R290 | R1270 | R717 | R723 | R744 |
Chemical | CHClF2 | CH3CH2CH3 | CH2CHCH3 | NH3 | NH3/ R-E170 | CO2 | ||||||||||||||
Group | HCFC | CFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HFC | HC | HC | NH3 | NH3/ R-E170 | CO2 |
Components | R22/ 115 | R143a/ 125/ 134a | R143a/ 125 | R32/ 125/ 134a | R32/ 125/ 134a | R32/ 125/ 134a | R32/ 125 | R32/ 125/ 134a | R125/ 134a/ 600 | R125/ 134a/ 600 | R125/ 134a/ 600a | R125/ 134a/ 600a | R32/ 125/ 143a/ 134a | R32/ 125/ 134a/ 600/ 601a | ||||||
Name | chloro-difluoro-methane | propane | propylene / propene | ammonia | ammonia/ DME | carbon dioxide | ||||||||||||||
Substitute for | R502, R12 | R502, R22 | R502, R22 | R22, R404A, R507A | R22, R404A, R507A | R22, R404A, R507A | R22, R13B1 | R22, R404A, R507A | R22 | R22 | R22 | R22 | R22 | R22 | R404A, R507A, R22 | R404A, R507A, R22 | R404A, R507A, R22 | R404A, R507A, R22 | R23, R134a, R404A, R507A | |
Application max (°C) | 12 | 10 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 12 | 20 |
Application min (°C) | -45 | -50 | -45 | -45 | -40 | -40 | -30 | -25 | -25 | -25 | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -20 | -20 | -20 |
Appl. limitations max (°C) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | ||||||||||
Appl. limitations min (°C) | -35 | -40 | -30 | -30 | ||||||||||||||||
Appl. 2-stage max (°C) | -20 | -30 | -30 | -30 | -30 | -40 | -20 | -20 | -15 | -15 | -10 | |||||||||
Appl. 2-stage min (°C) | -50 | -70 | -70 | -55 | -55 | -80 | -55 | -55 | -50 | -50 | -50 | |||||||||
Oil 1 | MO | AB | POE | POE | POE | POE | POE | POE | POE | POE | POE | POE | POE | POE | POE | PAO | PAO | MO | MO | POE |
Oil 2 | AB | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PVE | PAG | PAG | PAO | PAO | PAG | |
Oil 3 | POE | POE | MO/HC | MO/HC | ||||||||||||||||
Oil with limitations 1 | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | AB | |||
Oil with limitations 2 | MO | MO | ||||||||||||||||||
Molar mass | 86,47 | 111,64 | 97,6 | 98,86 | 90,11 | 82,06 | 79,1 | 72,59 | 86,2 | 106,75 | 113,12 | 113,6 | 109,94 | 90,44 | 99,13 | 44,1 | 42,08 | 17,03 | 22,77 | 44,01 |
Normal boiling point (°C) | -40,7 | -45,4 | -46,2 | -46,7 | -45,2 | -46,1 | -44,6 | -51,4 | -43,8 | -39,1 | -44,9 | -46,5 | -43,2 | -43 | -42,3 | -42,1 | -47,6 | -33,4 | -36,5 | -78,3 |
Normal dew point (°C) | -40,7 | -45,4 | -45,5 | -46,7 | -38,7 | -39,7 | -37,6 | -51,4 | -36,7 | -34,1 | -41,5 | -44 | -38,3 | -36,2 | -35,7 | -42,1 | -47,6 | -33,4 | -36,5 | -78,3 |
Temperature glide (K) | 0 | 0 | 0,7 | 0 | 6,5 | 6,4 | 7 | 0 | 7,1 | 5 | 3,4 | 2,5 | 4,9 | 6,8 | 6,6 | 0 | 0 | 0 | 0 | 0 |
Crit. temp. (°C) | 96 | 82 | 72 | 71 | 82 | 83 | 87 | 71 | 86 | 85 | 74 | 71 | 78 | 85 | 83 | 97 | 91 | 132 | 131 | 31 |
Crit. pressure (bar) | 49,9 | 40,7 | 37,35 | 37,05 | 44,94 | 47,55 | 48,57 | 49,01 | 46,15 | 38,94 | 37,37 | 36,65 | 37,95 | 44,06 | 41,79 | 42,5 | 45,6 | 113 | 110 | 73,8 |
ODP | 0,055 | 0,33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
GWP AR4 | 1810 | 4657 | 3922 | 3985 | 2107 | 1825 | 1490 | 2088 | 1774 | 2346 | 2920 | 3143 | 2729 | 2138 | 2264 | 3 | 2 | 0 | 1 | 1 |
GWP AR5 | 1760 | 4790 | 3940 | 3990 | 1920 | 1674 | 1380 | 1920 | 1620 | 2130 | 2740 | 2850 | 2470 | 2020 | 2060 | 3 | 2 | 0 | 1 | 1 |
Cond. temp. at 26 bar abs (°C) | 63 | 60 | 56 | 54 | 59 | 57 | 60 | 43 | 61 | 67 | 58 | 55 | 62 | 63 | 63 | 70 | 61 | 60 | 58 | -11 |
Relative refr. capacity (%) | 80 (L) | 105 (M) | 107 (M) | 98 (M) | 104 (M) | 99 (M) | 140 (H) | 100 (H) | 97 (M) | 95 (M) | 100 (M) | 90 (M) | 90 (M) | 88 (M) | 86 (M) | 104 (M) | 100 (M) | 105 (M) | ||
Discharge temp. increase (K) | 35 | -34 | -34 | -19 | -11 | -8 | -4 | -8 | -25 | -37 | -39 | -36 | -20 | -27 | 4 | 12 | 60 | 35 | ||
Safety group | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A1 | A3 | A3 | B2L | B2 | A1 |
Pract. limit AEL (kg/m³) | 0,3 | 0,45 | 0,52 | 0,53 | 0,33 | 0,32 | 0,38 | 0,44 | 0,31 | 0,15 | 0,069 | 0,29 | 0,26 | 0,29 | 0,079 | 0,008 | 0,008 | 0,00035 | N/A | 0,07 |