Table 10A 2Nd Stage Cooling Pressures - Standard Airflow; Table 10B 1St Stage Cooling Pressures - Balanced Climate Airflow - Bard W3SAC-A Installation Instructions Manual

Return Air Temp
Model
(DB/WB)
75/62
W3SAC 80/67
85/72
75/62
W4SAC 80/67
85/72
75/62
W5SAC 80/67
85/72
Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG
Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the
system, the charge should be removed and system evacuated and recharged to serial plate charge weight.
NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan
wiring. See Condenser Fan Operation on page 24.
* Operating at these conditions would be outside the compressor operating envelope and is not recommended.
Return Air Temp
Model
(DB/WB)
75/62
W3SAC
80/67
85/72
75/62
W4SAC
80/67
85/72
75/62
W5SAC
80/67
85/72
Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG
Tables are based upon Balanced Climate CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge
being in the system, the charge should be removed and system evacuated and recharged to serial plate charge weight.
NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan
wiring. See Condenser Fan Operation on page 24.
Manual 2100-720E
Page 32 of 42
TABLE 10A
2nd Stage Cooling Pressures – Standard Airflow
Pressure 75 80
Low Side 125 127
High Side 298 318
Low Side 134 136
High Side 305 326
Low Side 138 141
High Side 316 338
Low Side 126 127
High Side 320 343
Low Side 135 136
High Side 328 352
Low Side 140 141
High Side 340 364
Low Side 125 127
High Side 332 352
Low Side 134 136
High Side 341 631
Low Side 139 141
High Side 353 374
TABLE 10B
1st Stage Cooling Pressures – Balanced Climate Airflow
Pressure 75 80
Low Side 129 130
High Side 270 290
Low Side 137 139
High Side 277 298
Low Side 142 144
High Side 287 308
Low Side 131 132
High Side 286 306
Low Side 140 141
High Side 294 314
Low Side 145 146
High Side 304 325
Low Side 132 133
High Side 294 314
Low Side 141 142
High Side 302 322
Low Side 146 147
High Side 313 333
Air Temperature Entering Outdoor Coil °F
85 90 95 100 105
129 131 133 135 136
340 363 387 412 439
138 140 142 144 146
349 372 397 423 450
143 145 147 149 151
361 385 411 438 466
129 130 132 134 136
366 391 417 444 472
138 139 141 143 145
376 401 427 455 484
143 144 146 148 150
389 415 442 471 501
129 130 132 133 135
372 394 417 442 467
138 139 141 142 144
382 404 428 453 479
143 144 146 147 149
395 418 443 469 496
Air Temperature Entering Outdoor Coil °F
85 90 95 100 105
131 133 134 136 138
311 333 356 380 405
140 142 144 145 147
319 342 365 390 416
145 147 149 150 152
330 354 378 403 430
134 135 137 139 142
327 350 373 397 422
143 145 147 149 151
336 359 382 407 433
148 150 152 154 157
347 371 396 421 448
134 135 137 137 139
334 355 377 401 425
143 144 146 147 149
343 364 387 411 436
148 149 151 152 154
355 377 401 425 451
110 115 120 125 131
138 139 140 142 143
466 495 525 556 595
147 149 150 152 153
478 508 539 571 611
152 154 155 157 158
495 526 558 591 632
138 140 143 145 148
501 531 562 594 635
148 150 153 155 159
513 544 576 610 651
153 155 158 161 164
531 563 597 631 674
137 137 139 141 143
494 523 552 582 620
146 147 149 151 153
507 536 566 597 636
151 152 154 156
__*
525 555 586 618
110 115 120 125 131
140 142 144 146 149
431 459 487 516 553
149 151 154 156 159
443 470 499 530 567
154 157 159 162 165
458 487 517 548 587
144 147 149 152 156
449 476 505 534 571
154 157 160 163 167
460 488 517 548 585
159 162 165 169 173
476 505 536 567 606
140 142 144 146 148
450 477 504 532 567
150 152 154 156 158
462 489 517 546 582
155 157 159 161 164
478 506 535 565 602