Carrier Weathermaster 48P030-100 Controls, Start-Up, Operation, Service, And Troubleshooting page 25

Table 19 — Fan Performance — 48/50P090 Units with Forward-Curved Fan
AIRFLOW
0.2
(cfm)
rpm bhp
16,000 232 3.27
18,000 253 4.42
20,000 275 5.83
22,000 298 7.53
24,000 320 9.55
26,000 343 11.91
28,000 367 14.65
30,000 390 17.78
32,000 414 21.36
34,000 437 25.39
AIRFLOW
1.8
(cfm)
rpm bhp
16,000 423 10.62
18,000 432 12.36
20,000 443 14.38
22,000 455 16.70
24,000 470 19.38
26,000 485 22.43
28,000 501 25.89
30,000 518 29.76
32,000 536 34.11
34,000 555 38.92
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
AIRFLOW
3.4
(cfm)
rpm bhp
16,000 566 19.68
18,000 569 22.06
20,000 574 24.68
22,000 581 27.57
24,000 590 30.80
26,000 600 34.39
28,000 612 38.38
30,000 624 42.81
32,000 638 47.72
34,000 653 53.12
NOTE(S):
a. If calculating static pressure for a 48 Series unit, be sure to add gas heat pressure drop from Component Pressure Drop table.
b. Fan performance is based on wet coils and clean 2 in. filters.
c. For return fan and high-capacity power exhaust units, add component pressure drop for economizer. Do not add component pressure drop for power exhaust.
d. See Component Pressure Drop data table before using Fan Performance tables.
e. To convert bhp to kW, use the formula:

Kilowatts = bhp x 0.746
Motor efficiency
See Physical Data table for motor efficiency.
LEGEND
48/50P3,P5,P7,P9 units only.
bhp — Brake Horsepower
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4 0.6
rpm bhp rpm bhp
261 4.06 288 4.88
281 5.31 305 6.21
301 6.82 324 7.81
321 8.62 343 9.70
342 10.75 363 11.93
364 13.22 384 14.50
386 16.06 405 17.45
408 19.31 426 20.80
431 22.99 448 24.59
454 27.13 470 28.84
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.0 2.2
rpm bhp rpm bhp
442 11.68 462 12.77
450 13.50 469 14.66
460 15.58 478 16.82
472 17.98 489 19.28
486 20.72 501 22.08
500 23.83 515 25.27
516 27.36 530 28.86
533 31.32 546 32.89
550 35.73 563 37.38
568 40.63 581 42.36
3.6 3.8
rpm bhp rpm bhp
582 20.88 597 22.10
585 23.36 600 24.66
589 26.06 604 27.45
596 29.04 610 30.51
604 32.33 617 33.88
613 35.99 627 37.61
624 40.05 637 41.74
637 44.54 649 46.29
650 49.51 662 51.33
665 54.98 676 56.87
0.8 1.0
rpm bhp rpm bhp
313 5.74 337 6.65
329 7.14 351 8.11
346 8.82 366 9.86
364 10.80 383 11.92
383 13.11 401 14.31
402 15.78 420 17.07
422 18.83 439 20.20
443 22.28 459 23.75
464 26.17 479 27.75
485 30.53 500 32.20
2.4 2.6
rpm bhp rpm bhp
480 13.88 498 15.00
486 15.84 504 17.05
495 18.07 511 19.35
505 20.60 521 21.96
517 23.48 532 24.89
530 26.73 544 28.22
544 30.38 558 31.94
560 34.48 573 36.10
576 39.04 589 40.73
593 44.10 605 45.87
4.0
rpm bhp
613 23.33
615 25.99
618 28.85
624 31.99
631 35.44
640 39.24
650 43.44
661 48.06
674 53.17
— —
25
a,b,c,d,e
1.2 1.4
rpm bhp rpm bhp
360 7.59 381 8.57
372 9.12 393 10.17
386 10.94 406 12.05
402 13.07 420 14.25
419 15.54 436 16.79
437 18.37 453 19.70
455 21.59 471 23.00
474 25.24 489 26.73
494 29.32 508 30.90
514 33.87 528 35.55
2.8 3.0
rpm bhp rpm bhp
516 16.15 533 17.31
521 18.27 537 19.53
527 20.65 543 21.98
536 23.33 551 24.72
547 26.34 561 27.80
559 29.72 573 31.26
572 33.51 585 35.11
586 37.74 599 39.41
601 42.45 614 44.18
618 47.64 630 49.45
1.6
rpm bhp
402 9.58
413 11.25
425 13.20
438 15.46
453 18.07
469 21.05
486 24.43
504 28.24
523 32.49
542 37.23
3.2
rpm bhp
550 18.48
553 20.78
559 23.32
566 26.14
576 29.29
586 32.81
599 36.74
612 41.11
626 45.94
641 51.27