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Table 10 — Fan Performance (Forward Curved) — 48/50MP82N*
AIRFLOW
0.50
(Cfm)
Rpm
22,000
293
24,000
308
26,000
324
28,000
341
30,000
358
32,000
375
34,000
393
36,000
411
38,000
430
40,000
448
42,000
467
AIRFLOW
2.00
(Cfm)
Rpm
22,000
462
24,000
466
26,000
472
28,000
480
30,000
489
32,000
500
34,000
512
36,000
524
38,000
538
40,000
552
42,000
567
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on
48MP units.
Table 11 — Fan Performance (Forward Curved) — 48/50MP90P*
AIRFLOW
0.50
(Cfm)
Rpm
22,000
297
24,000
313
26,000
330
28,000
347
30,000
365
32,000
381
34,000
400
36,000
419
38,000
439
40,000
458
42,000
478
44,000
498
46,000
518
AIRFLOW
2.00
(Cfm)
Rpm
22,000
455
24,000
465
26,000
475
28,000
486
30,000
488
32,000
501
34,000
512
36,000
525
38,000
539
40,000
553
42,000
568
44,000
584
46,000
600
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on
48MP units.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.75
Bhp
Rpm
Bhp
6.2
326
7.7
7.6
339
9.1
9.2
352
10.8
11.0
367
12.7
13.1
382
14.9
15.5
398
17.4
18.2
415
20.2
21.2
432
23.3
24.6
449
26.8
28.3
467
30.6
32.5
485
34.9
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.25
Bhp
Rpm
Bhp
15.0
489
16.8
16.6
491
18.5
18.6
495
20.4
20.8
502
22.7
23.4
510
25.3
26.2
520
28.1
29.4
530
31.4
32.9
542
34.9
36.8
555
38.9
41.0
568
43.2
45.7
582
47.9
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.75
Bhp
Rpm
Bhp
6.9
329
7.9
8.5
343
9.6
10.3
357
11.5
12.3
373
13.6
14.6
389
16.0
16.5
400
17.9
19.4
418
20.9
22.6
437
24.2
26.2
455
27.9
30.3
474
32.0
34.7
493
36.4
39.5
512
41.3
44.8
532
46.7
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.25
Bhp
Rpm
Bhp
14.5
480
16.0
16.4
485
18.0
18.5
500
20.5
20.8
510
22.5
23.0
510
24.8
26.3
522
28.3
29.5
532
31.5
33.1
543
35.1
37.1
556
39.1
41.4
569
43.5
46.2
584
48.3
51.4
599
53.6
57.1
614
59.3
1.00
1.25
Rpm
Bhp
Rpm
359
9.3
392
369
10.8
399
380
12.6
408
393
14.6
419
407
16.8
431
421
19.4
444
436
22.3
458
452
25.5
473
468
29.1
488
485
33.0
504
502
37.3
520
2.50
2.75
Rpm
Bhp
Rpm
515
18.7
541
516
20.4
540
519
22.3
542
524
24.6
546
531
27.2
551
539
30.2
559
549
33.4
568
560
37.0
578
572
41.0
589
584
45.4
601
598
50.2
613
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
1.00
1.25
Rpm
Bhp
Rpm
360
8.9
375
371
10.7
395
384
12.7
410
398
14.9
422
412
17.4
436
420
19.4
440
437
22.4
455
454
25.8
472
472
29.6
488
490
33.7
505
508
38.3
523
527
43.2
541
546
48.7
559
2.50
2.75
Rpm
Bhp
Rpm
506
17.8
532
515
20.0
545
525
22.5
548
531
24.5
552
532
26.5
552
542
30.4
563
551
33.6
571
561
37.2
580
573
41.2
590
585
45.7
602
599
50.5
614
613
55.8
628
628
61.6
642
NOTES:
1. Fan performance is based on wet coils and clean 2-in. filters.
2. Conversion — Bhp to kW:
Bhp × .746
kW =
Motor efficiency
See Table 1 for motor efficiency.
31
1.50
Bhp
Rpm
Bhp
11.2
425
13.2
12.7
429
14.7
14.5
436
16.6
16.5
445
18.7
18.9
455
21.1
21.5
467
23.8
24.5
479
26.8
27.8
493
30.2
31.4
507
33.9
35.5
522
38.1
39.9
537
42.6
3.00
Bhp
Rpm
Bhp
20.7
567
22.9
22.4
564
24.5
24.4
564
26.5
26.7
567
28.8
29.3
572
31.4
32.2
578
34.4
35.5
586
37.7
39.2
595
41.4
43.2
605
45.5
47.7
617
50.0
52.5
629
54.9
1.50
Bhp
Rpm
Bhp
9.8
402
11.4
11.7
420
13.2
13.8
430
15.3
16.2
442
17.4
18.8
449
19.8
21.0
460
22.7
24.1
474
25.8
27.5
489
29.3
31.3
505
33.2
35.5
521
37.4
40.2
538
42.1
45.2
555
47.2
50.7
573
52.8
3.00
Bhp
Rpm
Bhp
19.5
555
21.5
22.0
568
23.8
24.5
570
26.2
26.5
572
28.5
28.6
572
30.8
32.5
585
34.8
35.8
590
38.1
39.4
598
41.7
43.5
607
45.7
47.9
618
50.2
52.8
630
55.2
58.2
642
60.6
64.0
656
66.4
1.75
Rpm
Bhp
457
15.3
459
16.9
464
18.8
471
20.9
480
23.4
490
26.2
501
29.3
513
32.7
526
36.5
540
40.7
555
45.4
1.75
Rpm
Bhp
430
13.0
445
14.8
452
16.9
462
19.0
469
21.4
480
24.5
493
27.6
507
31.2
522
35.1
537
39.4
553
44.1
570
49.3
587
54.9
3.25
Rpm
Bhp
578
23.5
590
25.5
590
28.0
592
30.5
590
33.0
602
36.5
610
40.4
617
44.1
625
48.1
634
52.6
645
57.6
657
63.0
670
68.0
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