Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.. 102 Math for HVACR 1 Refrigerant Pressure-Temperature Chart Temp (oF) Vapor Pressure PSIG 22 134a 401A Liquid 401A Vapor R-123 R-507 404A Liquid 407C Liquid 407C Vapor 410A Liquid –50 6.1 18.7 13.5 17.9 2.7 11.0 5.0 –45 2.7 16.9 11.1 16.0 0.6 8.0 7.7 –40 0.6 14.8 8.4 13.8 5.5 4.3 2.7 4.6 10.8 –35 2.6 12.5 5.3 11.4 8.2 6.8 5.1 0.6 14.1 –30 4.9 9.8 2.0 8.7 11.1 9.5 7.7 1.6 17.8 –25 7.4 6.9 0.8 5.6 14.3 12.5 10.6 3.9 21.9 –20 10.2 3.7 2.9 2.2 27.8 17.8 15.7 13.7 6.5 26.3 –15 13.2 0.6 5.1 0.7 27.4 21.7 19.3 17.2 9.3 31.2 –10 16.5 1.9 7.5 2.8 26.9 25.8 23.2 20.9 12.3 36.5 –5 20.1 4.1 10.1 5.0 26.4 30.3 27.5 25.0 15.7 42.2 0 24.0 6.5 13.0 7.4 25.9 35.2 32.1 29.5 19.4 48.4 5 28.3 9.1 16.1 10.1 25.2 40.5 37.0 34.3 23.5 55.2 10 32.8 11.9 19.5 13.0 24.5 46.1 42.4 39.5 27.9 62.4 15 37.8 15.0 23.1 16.2 23.8 52.2 48.2 45.2 32.7 70.3 20 43.1 18.4 27.1 19.6 22.8 58.8 54.5 51.2 37.9 78.7 25 48.8 22.1 31.4 23.4 21.8 65.8 61.2 57.7 43.5 87.7 30 55.0 26.1 36.0 27.4 20.7 73.3 68.4 64.7 49.6 97.4 35 61.5 30.4 40.9 31.8 19.5 81.3 76.1 72.2 56.1 107.7 40 68.6 35.0 46.2 36.5 18.1 89.8 84.4 80.2 63.2 118.8 45 76.1 40.1 51.8 41.6 16.6 98.9 93.2 88.8 70.7 130.6 50 84 1 45 4 579 470 .9 .0 14 9 109 103 979 78 8 143 9 .9 3.2 55 92.6 51.2 64.3 52.8 13.0 119 113 107.6 87.5 156.5 60 101.6 57.4 71.2 59.0 11.2 130 123 118.0 96.8 170.7 65 111.3 64.0 78.5 65.7 8.9 141 135 128.9 106.7 185.8 70 121.4 71.1 86.3 72.8 6.5 154 147 140.5 117.3 201.8 75 132.2 78.7 94.5 80.3 4.1 167 159 152.8 128.6 218.7 80 143.6 86.7 103.2 88.4 1.2 180 173 165.8 140.5 236.5 85 155.7 95.2 112.4 96.9 0.9 195 187 179.6 153.2 255.4 90 168.4 104.3 122.2 106.0 2.5 210 202 194.1 166.7 275.4 95 181.8 114.0 132.5 115.6 4.3 226 218 209.4 181.0 296.4 100 195.9 124.2 143.3 125.8 6.1 244 234 225.5 196.1 318.6 105 210.8 135.0 154.8 136.5 8.1 262 252 242.4 212.1 341.9 281 270 260.3 229.0 366.4 10.3 110 226.4 146.4 166.8 147.8 115 242.8 158.4 179.4 159.8 12.6 301 289 279.0 246.9 392.3 322 310 298.6 265.8 419.4 15.1 120 260.0 171.2 192.7 172.4 125 278.0 184.6 206.6 185.7 17.8 344 331 319.2 285.7 447.9 368 353 340.7 306.7 477.9 20.6 130 296.9 198.7 221.2 199.7 135 316.7 213.6 236.5 214.5 23.6 393 377 363.3 328.8 509.4 419 401 387.0 352.1 542.5 26.8 140 337.4 229.2 252.5 229.9 145 359.0 245.7 269.3 246.2 30.2 446 426 411.7 376.6 577.3 475 453 437.5 402.5 613.9 33.9 150 381.7 262.9 286.8 263.2 Bold values are in in. Hg Goodheart-Willcox Publisher