Truck/Trailer Refrigeration Unit - Sunbelt Transport Refrigeration

Table 4-7. R-404A Pressure -- Temperature ChartTo determine superheat use dew point (vapor) values.To determine subcooling use bubble point (liquid) values (shaded numbers).* Based on Du Pont publication T-HP62-ENG dated 12/93.Temperature Pressure_F _C Psig Kg/cm@ Bar--- 40 --- 40 4.5 0.32 0.31--- 35 --- 37 7.1 0.50 0.49--- 30 --- 34 9.9 0.70 0.68--- 25 --- 32 12.9 0.91 0.89--- 20 --- 29 16.3 1.15 1.12--- 18 --- 28 17.7 1.24 1.22--- 16 --- 27 19.2 1.35 1.32--- 14 --- 26 20.7 1.46 1.43--- 12 --- 24 22.3 1.57 1.54--- 10 --- 23 23.9 1.68 1.65--- 8 --- 22 25.6 1.80 1.77--- 6 --- 21 27.3 1.92 1.88--- 4 --- 20 29.1 2.05 2.01--- 2 --- 19 30.9 2.17 2.130 --- 18 32.8 2.31 2.262 --- 17 34.8 2.45 2.404 --- 16 36.8 2.59 2.546 --- 14 38.9 2.73 2.688 --- 13 41.1 2.89 2.8310 --- 12 43.3 3.04 2.9912 --- 11 45.6 3.21 3.1414 --- 10 48.0 3.37 3.3116 --- 9 50.4 3.54 3.4718 --- 8 52.9 3.72 3.6520 --- 7 55.5 3.90 3.8322 --- 6 58.1 4.08 4.0124 --- 4 60.9 4.28 4.2026 --- 3 63.7 4.48 4.3928 --- 2 66.5 4.68 4.5930 --- 1 69.5 4.89 4.79TemperaturePressure_F _C Psig Kg/cm@ Bar32 0 72.5 5.10 5.0034 1 75.6 5.32 5.2136 2 78.8 5.54 5.4338 3 82.1 5.77 5.6640 4 85.5 6.01 5.9042 6 89.0 6.26 6.1444 7 92.5 6.50 6.3846 8 96.2 6.76 6.6348 9 99.9 7.02 6.8950 10 103.7 7.29 7.1555 13 115.4 8.11 7.9660 16 126.1 8.87 8.6965 18 137.4 9.66 9.4770 21 149.4 10.50 10.3075 24 162.1 11.40 11.1880 27 175.5 12.34 12.1085 29 189.6 13.33 13.0790 32 204.5 14.38 14.1095 35 220.2 15.48 15.18100 38 236.8 16.65 16.33105 41 254.2 17.87 17.53110 43 272.4 19.15 18.78115 46 291.6 20.50 20.11120 49 311.8 21.92 21.50125 52 332.9 23.41 22.95130 54 355.0 24.96 24.48135 57 378.1 26.58 26.07140 60 402.3 28.28 27.74145 63 427.6 30.06 29.48150 66 454.0 31.92 31.3062-028844-28