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Table 12 — Fan Performance (Forward Curved) — 48/50MP10R*
AIRFLOW
0.50
(Cfm)
Rpm
Bhp
26,000
315
28,000
330
11.2
30,000
346
13.2
32,000
368
15.6
34,000
386
18.4
36,000
405
21.5
38,000
424
24.9
40,000
443
28.7
42,000
463
33.0
44,000
482
37.6
46,000
502
42.6
48,000
521
48.1
50,000
541
54.0
52,000
561
60.5
AIRFLOW
2.00
(Cfm)
Rpm
Bhp
26,000
455
17.5
28,000
470
19.5
30,000
485
22.0
32,000
500
25.5
34,000
511
28.5
36,000
522
32.0
38,000
533
35.5
40,000
547
39.8
42,000
562
43.5
44,000
570
48.4
46,000
579
53.8
48,000
595
59.7
50,000
612
66.0
52,000
629
72.8
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on
48MP units.
AIRFLOW
0.25
0.50
(Cfm)
Rpm
Bhp
Rpm
16,000
581
3.4
620
18,000
637
4.5
672
20,000
698
5.8
730
22,000
757
7.4
787
24,000
815
9.2
843
26,000
877
11.4
904
28,000
937
13.9
962
30,000
995
16.6
1019
32,000
1055
19.8
1078
AIRFLOW
2.75
3.00
(Cfm)
Rpm
Bhp
Rpm
16,000
929
11.7
959
18,000
957
13.4
986
20,000
991
15.4
1019
22,000
1030
17.5
1055
24,000
1069
19.9
1094
26,000
1114
22.8
1137
28,000
1158
25.9
1179
30,000
1207
29.5
1226
32,000
1257
33.5
1275
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
Rpm
Bhp
9.5
346
10.9
359
12.7
372
14.8
386
16.9
404
19.7
421
22.9
449
26.4
458
30.3
476
34.6
495
39.2
514
44.3
533
49.9
553
55.9
572
62.4
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.25
Rpm
Bhp
480
19.0
490
21.2
502
23.8
519
27.5
530
30.7
538
33.7
550
37.5
562
41.3
577
45.5
584
50.5
592
55.9
607
61.8
624
68.1
640
75.0
Table 13 — Fan Performance (Air Foil) — 48/50MP62L*
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.75
1.00
Bhp
Rpm
Bhp
Rpm
Bhp
4.1
656
4.8
694
5.5
5.2
706
6.0
738
6.8
6.7
761
7.6
792
8.4
8.4
815
9.3
843
10.2
10.2
870
11.2
895
12.3
12.5
929
13.7
953
14.8
15.1
986
16.3
1009
17.5
17.9
1042
19.2
1064
20.5
21.2
1100
22.6
1121
23.9
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.25
3.50
Bhp
Rpm
Bhp
Rpm
Bhp
12.7
—
—
—
—
14.4
1015
15.5
1042
16.6
16.5
1046
17.6
1073
18.8
18.7
1079
19.9
1103
21.1
21.2
1117
22.4
1140
23.7
24.1
1160
25.4
1183
26.8
27.2
1201
28.6
1223
30.0
30.8
1244
32.1
1264
33.5
34.9
1293
36.3
1311
37.6
1.00
1.25
Rpm
Bhp
Rpm
367
10.9
390
380
14.0
401
399
16.8
417
415
18.8
438
430
21.8
450
446
24.4
468
464
28.0
471
473
31.9
487
490
36.2
505
509
41.0
522
527
46.1
540
546
51.7
558
564
57.8
576
583
64.4
594
2.50
2.75
Rpm
Bhp
Rpm
505
20.5
528
510
23.0
532
520
25.5
539
538
29.5
558
548
33.0
567
555
35.5
574
566
39.6
582
576
42.9
592
592
47.5
603
598
52.5
608
605
58.0
618
620
63.9
633
636
70.3
648
652
77.2
663
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.
1.25
1.50
Rpm
Bhp
Rpm
Bhp
731
6.4
765
7.2
771
7.6
805
8.5
820
9.3
849
10.1
871
11.1
897
12.1
921
13.3
946
14.3
977
15.9
1001
17.0
1031
18.7
1053
19.9
1085
21.8
1106
23.1
1141
25.3
1161
26.7
3.75
4.00
Rpm
Bhp
Rpm
Bhp
—
—
—
—
1068
17.7
1094
18.8
1099
19.9
1124
21.1
1129
22.3
1154
23.6
1163
24.9
1185
26.2
1204
28.1
1226
29.5
1244
31.4
1265
32.9
1285
35.0
1305
36.5
1328
39.0
1346
40.5
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.
32
1.50
Bhp
Rpm
Bhp
12.4
412
14.0
14.9
422
16.0
17.6
435
18.5
20.8
461
22.8
23.5
470
25.2
26.3
489
28.2
29.6
501
31.3
33.6
513
35.3
38.0
532
39.7
42.8
542
44.6
48.0
553
49.9
53.6
570
55.6
59.8
588
61.8
66.4
606
68.5
3.00
Bhp
Rpm
Bhp
22.4
550
24.5
24.7
555
26.5
27.5
558
29.5
31.1
577
32.8
34.3
586
35.7
37.3
592
39.1
41.2
599
42.9
45.0
608
47.1
49.6
614
51.8
54.7
619
56.9
60.2
632
62.4
66.1
646
68.4
72.6
660
74.9
79.5
675
81.9
1.75
2.00
2.25
Rpm
Bhp
Rpm
Bhp
Rpm
798
8.0
833
9.0
866
837
9.5
867
10.4
896
880
11.2
909
12.2
938
922
13.0
951
14.1
978
971
15.3
994
16.4
1019
1024
18.1
1046
19.2
1068
1075
21.1
1097
22.3
1118
1126
24.4
1147
25.7
1168
1180
28.1
1199
29.5
1219
4.25
4.50
4.75
Rpm
Bhp
Rpm
Bhp
Rpm
—
—
—
—
—
—
—
—
—
—
1149
22.3
1173
23.5
1197
1178
24.8
1202
26.1
1225
1207
27.6
1230
28.9
1253
1247
30.9
1267
32.2
1287
1286
34.3
1306
35.8
1326
1325
38.0
1345
39.5
1364
1366
42.1
1385
43.7
1404
1.75
Rpm
Bhp
434
15.7
446
17.7
460
20.2
490
24.1
490
26.8
506
30.1
417
33.4
530
37.1
547
41.6
556
46.5
566
51.8
582
57.6
600
63.9
617
70.6
3.25
Rpm
Bhp
572
26.5
580
29.0
580
31.5
595
35.1
601
38.0
608
41.4
615
45.2
622
49.4
628
54.0
633
59.1
646
64.7
659
70.8
672
77.3
687
84.3
2.50
Bhp
Rpm
Bhp
9.9
898
10.8
11.3
927
12.3
13.2
965
14.3
15.3
1005
16.4
17.5
1044
18.7
20.3
1089
21.5
23.5
1138
24.7
26.9
1187
28.2
30.8
1238
32.2
5.00
Bhp
Rpm
Bhp
—
—
—
—
—
—
24.7
1220
25.9
27.4
1248
28.7
30.3
1276
31.7
33.6
1308
35.1
37.2
1345
38.7
41.1
1383
42.6
45.3
1423
47.0
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