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 |