PT chart · ASHRAE A1
R-410A PT Chart
R-410A pressure–temperature chart in psig and °F/°C. Residential and light commercial AC and heat pumps.
Vacuum readings are shown in inches of mercury (″ Hg) below atmospheric pressure.
Calculate superheat & subcooling with R-410A
| °F | °C | Pressure, psig |
|---|---|---|
| -50 | -45.6 | 5.0 |
| -45 | -42.8 | 7.7 |
| -40 | -40.0 | 10.8 |
| -35 | -37.2 | 14.1 |
| -30 | -34.4 | 17.8 |
| -25 | -31.7 | 21.9 |
| -20 | -28.9 | 26.3 |
| -15 | -26.1 | 31.2 |
| -10 | -23.3 | 36.5 |
| -5 | -20.6 | 42.2 |
| 0 | -17.8 | 48.4 |
| 5 | -15.0 | 55.2 |
| 10 | -12.2 | 62.4 |
| 15 | -9.4 | 70.3 |
| 20 | -6.7 | 78.7 |
| 25 | -3.9 | 87.7 |
| 30 | -1.1 | 97.4 |
| 35 | 1.7 | 107.7 |
| 40 | 4.4 | 118.8 |
| 45 | 7.2 | 130.6 |
| 50 | 10.0 | 143.2 |
| 55 | 12.8 | 156.5 |
| 60 | 15.6 | 170.7 |
| 65 | 18.3 | 185.8 |
| 70 | 21.1 | 201.8 |
| 75 | 23.9 | 218.7 |
| 80 | 26.7 | 236.5 |
| 85 | 29.4 | 255.4 |
| 90 | 32.2 | 275.4 |
| 95 | 35.0 | 296.4 |
| 100 | 37.8 | 318.6 |
| 105 | 40.6 | 341.9 |
| 110 | 43.3 | 366.4 |
| 115 | 46.1 | 392.3 |
| 120 | 48.9 | 419.4 |
| 125 | 51.7 | 447.9 |
| 130 | 54.4 | 477.9 |
| 135 | 57.2 | 509.4 |
| 140 | 60.0 | 542.5 |
| 145 | 62.8 | 577.3 |
| 150 | 65.6 | 613.9 |
Source: Arkema Forane® Pressure Temperature Chart (PPC/SDC 05-2025). Reference only; verify against the equipment manufacturer's data.
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