Pressure Charts; Cooling Pressure - Bard Q-TEC Q30H2-A Installation Instructions Manual

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MODEL AIR PRESSURE
TEMP.
75 DB Low Side
62 WB High Side
80 DB Low Side
Q24H2
67 WB High Side
85 DB Low Side
72 WB High Side
75 DB Low Side
62 WB High Side
80 DB Low Side
Q30H2
67 WB High Side
85 DB Low Side
72 WB High Side
75 DB Low Side
62 WB High Side
80 DB Low Side
Q36H2
67 WB High Side
85 DB Low Side
72 WB High Side
75 DB Low Side
62 WB High Side
80 DB Low Side
Q42H2
67 WB High Side
85 DB Low Side
72 WB High Side
75 DB Low Side
62 WB High Side
80 DB Low Side
Q48H2
67 WB High Side
85 DB Low Side
72 WB High Side
75 DB Low Side
62 WB High Side
80 DB Low Side
Q60H2
67 WB High Side
85 DB Low Side
72 WB High Side
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, system evacuated and recharged to serial plate instructions.
 75°F outdoor temperature condenser fan motor is running on low speed.
TABLE 9

Cooling Pressure

(All Temperatures in Degrees F)
 AIR TEMPERATURE ENTERING OUTDOOR COIL
75° 80° 85°
118 119 121
326 340 358
126 127 129
334 349 367
130 131 134
346 361 380
124 125 126
351 368 386
133 134 135
360 377 396
138 139 140
373 390 410
131 132 133
351 369 389
140 141 142
360 378 399
145 146 147
373 391 413
126 128 130
371 388 408
135 137 139
380 398 418
140 142 144
393 412 433
123 125 128
373 392 412
132 134 137
383 402 423
137 139 142
396 416 438
123 123 124
378 395 413
132 132 133
388 405 424
137 137 138
402 419 439
90° 95° 100° 105°
122 125 128
377 399 422
131 134 137
387 418 433
136 139 142
401 423 448
127 129 131
407 430 454
136 136 140
417 442 466
141 143 145
432 456 482
134 136 137
410 434 459
143 143 147
421 448 471
148 150 152
436 461 487
132 133 134
430 453 479
139 139 143
441 471 491
146 147 148
456 481 508
130 133 136
435 459 486
139 139 145
446 458 498
144 147 150
462 487 515
124 126 127
434 455 479
133 133 136
445 467 491
138 140 141
461 483 508
110° 115°
132 135 138
449 477 508
141 144 148
460 489 521
146 149 153
476 506 539
134 137 139
482 511 543
143 146 149
494 524 557
148 151 154
511 542 576
138 140 142
486 514 543
148 150 152
498 527 557
153 155 157
515 545 576
135 136 136
507 536 568
144 145 145
520 550 583
149 150 150
538 569 603
139 143 147
514 543 575
149 153 157
527 557 590
154 158 162
545 576 611
129 131 133
504 530 559
138 140 142
517 544 573
143 145 147
535 563 593
Manual 2100-601E
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