Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 23

Table 18 — Fan Performance — 48/50N 120-150 Nominal Ton Units High-Static Power Exhaust Fan Data
AIRFLOW
0.2
(cfm)
Rpm Bhp
24,000 195 3.13
28,000 209 4.07
30,000 216 4.60
32,000 224 5.17
34,000 231 5.79
36,000
238 6.44
38,000
246 7.15
40,000 253 7.89
42,000 261 8.69
44,000 268 9.54
46,000 276 10.43
48,000 283 11.38
50,000 291 12.39
52,000
298 13.45
60,000 328 18.30
AIRFLOW
1.2
(cfm)
Rpm Bhp
24,000 352 12.35
28,000 366 15.10
30,000 373 16.58
32,000 380 18.12
34,000
388 19.74
36,000 395 21.42
38,000 402 23.18
40,000 409 25.01
42,000 416 26.89
44,000 423 28.87
46,000 431 30.92
48,000
438 33.05
50,000
445 35.26
52,000 452 37.56
60,000 481 47.54
AIRFLOW
2.2
(cfm)
Rpm Bhp
24,000
446 21.15
28,000 460 25.43
30,000 467 27.69
32,000 475 30.04
34,000 482 32.49
36,000 489 35.00
38,000 496 37.60
40,000
503 40.30
42,000 510 43.09
44,000 517 45.96
46,000 525 48.94
48,000 532 52.00
50,000 539 55.17
52,000 546 58.43
60,000
—
AIRFLOW
3.2
(cfm)
Rpm Bhp
24,000 521 29.98
28,000 535 35.67
30,000 542 38.69
32,000 549 41.79
34,000
556 44.99
36,000 563 48.28
38,000 570 51.68
40,000 577 55.17
42,000 584 58.77
44,000 —
46,000 —
48,000
—
50,000 —
52,000 —
60,000 —
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Rpm Bhp
239 5.10
254 6.47
261 7.22
268 8.02
275 8.87
283 9.77
290 10.72
297 11.73
305 12.79
312 13.90
319 15.09
327 16.32
334 17.62
341 18.98
371 25.08
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Rpm Bhp
373 14.11
387 17.19
394 18.83
402 20.54
409 22.32
416 24.18
423 26.12
430 28.12
437 30.21
445 32.38
452 34.62
459 36.93
466 39.34
473 41.86
502 52.71
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
Rpm Bhp
462 22.91
476 27.49
484 29.90
491 32.40
498 34.99
505 37.67
512 40.43
519 43.31
526 46.25
533 49.29
541 52.45
548 55.68
555 59.03
— —
— — —
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4
Rpm Bhp
534 31.75
548 37.74
555 40.89
562 44.13
569 47.48
576 50.93
584 54.48
591 58.13
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0.6
Rpm Bhp Rpm
274 6.96 303
288 8.71 317
295 9.65 324
302 10.66 331
310 11.72 339
317 12.84 346
324 14.01 353
331 15.24 360
339 16.53 368
346 17.89 375
353 19.29 382
361 20.79 389
368 22.34 397
375 23.95 404
405 31.15 433
1.6
Rpm Bhp Rpm
393 15.87 412
407 19.25 426
414 21.05 433
421 22.93 440
429 24.89 447
436 26.91 454
443 29.02 461
450 31.20 469
457 33.47 476
464 35.83 483
472 38.25 490
479 40.77 497
486 43.37 505
493 46.07 512
522 57.76 —
2.6
Rpm Bhp Rpm
478 24.67 492
492 29.54 507
499 32.10 514
506 34.76 521
513 37.50 528
520 40.33 535
527 43.26 542
534 46.28 549
542 49.41 556
549 52.62 564
556 55.92 571
563 59.35 —
— — —
— — —
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3.6
Rpm Bhp Rpm
547 33.52 560
561 39.79 574
568 43.08 581
575 46.48 588
582 49.97 595
589 53.57 602
597 57.27 —
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23
0.8 1.0
Bhp Rpm
8.78 329
10.87 343
12.01 350
13.19 357
14.45 364
15.77 371
17.14 379
18.58 386
20.10 393
21.66 400
23.30 408
25.02 415
26.79 422
28.65 429
36.84 458
1.8 2.0
Bhp Rpm
17.63 429
21.32 444
23.28 451
25.31 458
27.42 465
29.63 472
31.90 479
34.27 486
36.70 493
39.24 501
41.84 508
44.55 515
47.35 522
50.24 529
— —
2.8 3.0
Bhp Rpm
26.43 507
31.59 521
34.30 528
37.10 535
40.00 542
42.99 549
46.07 556
49.25 563
52.53 571
55.92 578
59.40 —
— —
— —
— —
— —
3.8 4.0
Bhp Rpm
35.31 572
41.86 586
45.29 593
48.83 600
52.47 607
56.19 614
— —
— —
— —
— —
— —
— —
— —
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Bhp
10.57
13.00
14.31
15.68
17.12
18.62
20.19
21.82
23.53
25.32
27.17
29.09
31.08
33.17
42.27
Bhp
19.39
23.37
25.48
27.69
29.96
32.32
34.76
37.29
39.90
42.62
45.40
48.30
51.28
54.34
—
Bhp
28.20
33.64
36.50
39.45
42.50
45.64
48.88
52.22
55.66
59.19
—
—
—
—
—
Bhp
37.09
43.91
47.49
51.17
54.95
58.85
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—
—
—
—
—
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