Table 4. HFC−410A Normal Operating Pressures (Liquid +10 and Suction +5 psig)
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| Use this table to perform maintenance checks; it is not a procedure for charging the | ||||||
IMPORTANT | system. Minor variations in these pressures may be due to differences in installations. | |||||||||
Significant deviations could mean that the system is not properly charged or that a | ||||||||||
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Model | −018 | −024 |
| −030 | −036 | −041 | −042 | −047 | −048 | −059/−060 |
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**Temp. | Liquid / | Liquid / |
| Liquid / | Liquid / | Liquid / | Liquid / | Liquid / | Liquid / | Liquid / |
5F (5C) | Suction | Suction |
| Suction | Suction | Suction | Suction | Suction | Suction | Suction |
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Expansion Valve (TXV)* |
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65 (18) | 230 / 138 | 225 / 135 |
| 226 / 129 | 238 / 132 | 233 / 142 | 236 / 138 | 233 / 139 | 238 / 136 | 239 / 133 |
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70 (21) | 244 / 139 | 242 / 137 |
| 241 / 131 | 254 / 135 | 239 / 142 | 253 / 140 | 252 / 140 | 256 / 138 | 258 / 135 |
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75 (24) | 265 / 140 | 260 / 138 |
| 259 / 134 | 273 / 138 | 256 / 143 | 273 / 141 | 272 / 141 | 277 / 139 | 278 / 136 |
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80 (27) | 286 / 140 | 282 / 140 |
| 281 / 138 | 293 / 140 | 278 / 144 | 296 / 142 | 294 / 142 | 299 / 140 | 300 / 137 |
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85 (29) | 307 / 142 | 304 / 141 |
| 301 / 140 | 316 / 142 | 299 / 145 | 318 / 143 | 315 / 142 | 320 / 139 | 323 / 138 |
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90 (32) | 330 / 143 | 326 / 142 |
| 324 / 141 | 340 / 143 | 321 / 145 | 341 / 144 | 338 / 144 | 343 / 140 | 346 / 139 |
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95 (35) | 351 / 144 | 351 / 142 |
| 348 / 142 | 366 / 144 | 343 / 146 | 366 / 146 | 361 / 144 | 369 / 141 | 370 / 140 |
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100 (38) | 380 / 144 | 376 / 144 |
| 372 / 143 | 392 / 145 | 366 / 147 | 392 / 147 | 387 / 144 | 395 / 142 | 396 / 142 |
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105 (41) | 407 / 145 | 403 / 145 |
| 399 / 144 | 420 / 147 | 389 / 148 | 417 / 148 | 413 / 145 | 422 / 144 | 415 / 143 |
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110 (43) | 436 / 146 | 433 / 145 |
| 428 / 145 | 449 / 148 | 421 / 149 | 445 / 149 | 442 / 148 | 450 / 146 | 449 / 145 |
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115 (45) | 466 / 147 | 463 / 147 |
| 456 / 146 | 480 / 149 | 452 / 151 | 475 / 151 | 465 / 148 | 481 / 148 | 476 / 147 |
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Fixed Orifice (RFC)* |
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65 (18) | 232 / 124 | 228 / 125 |
| 229 / 128 | 241 / 131 | 228 / 131 | 248 / 135 | 232 / 125 | 240 / 126 | 244 / 125 |
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70 (21) | 248 / 127 | 244 / 127 |
| 243 / 129 | 258 / 134 | 245 / 135 | 266 / 138 | 249 / 129 | 260 / 129 | 263 / 128 |
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75 (24) | 267 / 131 | 261 / 131 |
| 261 / 132 | 277 / 136 | 263 / 138 | 285 / 141 | 268 / 133 | 281 / 133 | 281 / 131 |
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80 (27) | 286 / 135 | 284 / 134 |
| 284 / 135 | 298 / 139 | 284 / 141 | 305 / 143 | 286 / 136 | 301 / 135 | 303 / 134 |
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85 (29) | 307 / 138 | 303 / 137 |
| 305 / 138 | 321 / 141 | 306 / 144 | 327 / 145 | 312 / 140 | 324 / 138 | 324 / 136 |
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90 (32) | 328 / 141 | 325 / 140 |
| 327 / 140 | 342 / 143 | 327 / 146 | 349 / 147 | 332 / 142 | 346 / 140 | 347 / 139 |
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95 (35) | 351 / 143 | 347 / 142 |
| 349 / 142 | 366 / 145 | 348 / 148 | 372 / 149 | 357 / 144 | 371 / 142 | 370 / 141 |
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100 (38) | 375 / 146 | 370 / 144 |
| 372 / 144 | 392 / 147 | 372 / 149 | 396 / 150 | 379 / 146 | 395 / 144 | 394 / 143 |
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105 (41) | 400 / 148 | 394 / 146 |
| 396 / 146 | 416 / 149 | 395 / 151 | 421 / 152 | 406 / 149 | 420 / 146 | 418 / 145 |
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110 (43) | 426 / 150 | 420 / 148 |
| 422 / 148 | 446 / 151 | 424 /153 | 447 / 153 | 430 / 150 | 447 / 148 | 444 / 146 |
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115 (46) | 457 / 153 | 447 / 150 |
| 449 / 150 | 480 / 152 | 453 / 155 | 476 / 154 | 460 / 152 | 473 / 150 | 471 / 147 |
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*Values shown are typical pressures; indoor unit match up, indoor air quality equipment, and indoor load will cause the pressures to vary. **Temperature of the air entering the outside coil.
Page 27
14ACX SERIES