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Ambient Temperature / Relative Humidity Reference Chart: Notes

AMBIENT TEMPERATURE / RELATIVE HUMIDITY REFERENCE CHART

Relative Humidity (%) Outside Air Temp (°F) R-12 Discharge Temp (°F) R-12 Low Pressure (psi) R-12 High Pressure (psi) R-134a Discharge Temp (F) R-134a Low Pressure (P1/2 i) R-134a High Pressure (psi)
20 70 44 24 143 44 9 69
80 44 31 192 44 24 85
90 50 45 232 47 40 136
100 59 47 270 53 50 231
110 66 57 320 64 58 308
30 70 44 23 154 44 10 80
80 44 35 203 44 28 110
90 54 47 239 48 42 168
100 63 50 283 59 54 253
110 74 60 334 69 62 328
40 70 44 34 170 45 12 93
80 50 40 216 50 32 149
90 58 48 146 56 45 212
100 67 53 291 64 57 264
110 77 63 350 74 67 348
50 70 46 37 178 45 14 102
80 55 43 223 51 36 164
90 61 50 252 59 54 229
100 71 58 312 70 67 229
110 84 66 365 80 76 368
60 70 47 40 187 45 18 133
80 55 49 230 53 39 191
90 64 54 266 62 57 249
100 75 60 318 72 72 310
110 86 68 383 83 80 384
70 70 47 41 228 46 19 168
80 56 50 257 56 42 215
90 66 56 278 67 61 260
100 78 63 333 77 75 321
110 91 72 402 87 87 390
80 70 47 43 247 46 21 178
80 57 53 268 57 47 218
90 69 62 287 69 67 267
100 82 70 340 78 80 331
110 95 76 438 90 89 405
90 70 48 44 258 46 33 183
80 60 55 286 59 54 223
90 72 63 307 71 69 274
100 65 72 350 84 84 345
110 101 80 463 87 94 424