Table of Contents
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AIRFLOW
0.50
(Cfm)
Rpm
Bhp
Rpm
24,000
501
5.70
534
26,000
531
8.78
581
28,000
561
7.98
588
30,000
591
9.36
618
32,000
621
10.6
645
34,000
651
12.5
676
36,000
681
14.3
704
38,000
713
16.3
735
40,000
743
18.5
763
42,000
774
20.9
794
44,000
806
23.5
825
46,000
837
26.3
856
AIRFLOW
3.00
3.25
(Cfm)
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
24,000
—
—
—
26,000
795 20.1
—
28,000
810 21.7
833 23.4
30,000
828 23.6
849 25.2
32,000
849 25.8
859 27.4
34,000
871 28.1
890 29.8
36,000
893 30.6
912 32.4
38,000
916 33.4
935 35.2
40,000
939 36.2
956 38.1
42,000
963 39.3
980 41.3
44,000
988 42.7 1005 44.6 1022 45.6 1038 48.9 1054 51.0 1070 53.1 1086 55.2 1102 57.4
46,000
1013 46.2 1029 48.4 1046 50.5 1062 52.6 1077 54.8 1093 56.9 1108 59.1 1124 61.4 1139 63.6
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on
48MP units.
AIRFLOW
0.50
(Cfm)
Rpm
Bhp
Rpm
26,000
525
6.55
555
28,000
554
7.69
582
30,000
584
9.00
611
32,000
613
10.4
639
34,000
643
12.0
667
36,000
672
13.7
696
38,000
704
15.7
726
40,000
734
17.8
755
42,000
765
20.1
785
44,000
795
22.5
815
46,000
826
25.2
845
48,000
857
28.2
876
50,000
889
31.4
907
52,000
919
34.7
937
AIRFLOW
3.00
3.25
(Cfm)
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
26,000
790 19.8
—
28,000
804 21.3
828 23.0
30,000
823 23.2
843 24.8
32,000
844 25.3
863 27.0
34,000
865 27.6
884 29.3
36,000
886 30.0
905 31.7
38,000
909 32.7
927 34.5
40,000
931 35.4
949 37.3
42,000
955 35.5
973 40.4
44,000
978 41.6
996 43.6 1013 45.7 1029 47.7 1045 49.8 1061 51.9 1077 54.0 1093 56.2 1109 58.4
46,000
1003 45.1 1020 47.2 1037 49.3 1053 51.4 1069 53.6 1084 55.7 1100 57.9
48,000
1028 48.7 1044 50.9 1061 53.1 1077 55.3 1092 57.5 1108 59.7 1123 62.0 1137 64.2 1152 66.5
50,000
1053 52.7 1069 54.9 1085 57.2 1101 59.4
52,000
1080 56.8 1094 59.0 1109 61.4 1125 63.7 1140 66.1 1165 68.4 1170 70.8 1184 73.2
LEGEND
Bhp — Brake Horsepower
*Refer to Fan Performance, 48MP Units section, for correct procedure on
48MP units.
Table 16 — Fan Performance (Air Foil) — 48/50MP90P*
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.75
1.00
1.25
Bhp
Rpm
Bhp
Rpm
6.78
565
7.89
594
7.93
591
9.12
619
9.20
617
10.5
644
10.6
644
12.0
670
12.2
670
13.6
695
13.9
698
15.4
721
15.8
727
17.3
748
18.0
758
19.6
777
20.1
785
21.8
805
22.5
814
24.4
834
25.4
844
27.2
863
28.2
874
30.2
892
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.50
3.75
—
—
—
—
—
—
—
—
—
—
856 25.1
—
—
871 27.0
893 28.8
888 29.1
907 30.8
909 31.6
927 33.3
930 34.2
948 36.0
953 37.1
971 39.0
974 40.0
992 42.0 1009 43.9 1025 45.9 1042 44.9 1058 49.9 1074 52.0
997 43.3 1014 45.3 1031 47.3 1048 49.4 1064 51.5 1080 53.5 1095 55.6
Table 17 — Fan Performance (Air Foil) — 48/50MP10R*
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.75
1.00
1.25
Bhp
Rpm
Bhp
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
7.69
585
8.88
613
8.90
610
10.2
637
10.3
636
11.6
663
11.8
663
13.2
688
13.5
691
14.9
714
15.2
719
15.8
740
17.3
748
18.9
769
19.5
776
21.2
797
21.9
805
23.6
825
24.3
834
26.2
853
27.2
864
29.1
882
30.2
894
32.2
911
33.4
924
38.5
941
35.9
954
39.0
970
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.50
3.75
—
—
—
—
—
851 24.7
—
—
865 26.5
887 28.3
882 28.6
901 30.3
903 31.0
921 32.7
924 33.5
942 35.3
946 38.3
964 38.2
967 39.2
985 41.2 1002 43.2 1019 45.1 1038 47.1 1052 49.1 1068 61.2
990 42.2 1007 44.4 1024 46.4 1040 48.5 1057 50.5 1073 52.6 1089 54.7
1.50
1.75
Bhp
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
9.05
622
10.2
649
11.5
10.3
646
11.6
672
12.9
11.7
669
13.1
695
14.4
13.3
695
14.7
718
16.1
15.0
719
16.5
742
18.0
16.9
744
18.4
767
20.0
18.9
770
20.5
792
22.1
21.2
797
22.9
818
24.6
23.5
824
25.3
843
27.0
26.2
853
28.0
871
29.8
29.1
882
31.0
900
32.9
32.1
910
34.1
928
36.0
4.00
4.25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
915 30.7
—
—
—
928 32.7
949 34.6
969 36.6
945 35.0
963 36.9
983 38.9 1003 41.0 1022 43.0
966 37.8
983 38.9 1000 41.5 1017 43.4 1036 45.6
988 40.0 1005 42.8 1022 44.7 1038 46.7 1054 48.6
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.
1.50
1.75
10.1
641
11.3
667 12.6
11.4
663
12.7
689 14.1
13.0
688
14.3
712 15.7
14.6
712
16.1
736 17.5
16.4
737
17.9
760 19.5
18.3
761
19.9
784 21.5
20.5
789
22.2
810 23.9
22.9
817
24.6
836 26.3
25.4
844
27.2
863 29.0
28.1
872
29.9
890 31.8
31.0
900
33.0
918 34.9
34.2
929
36.2
946 38.3
37.5
958
39.8
975 41.9
41.2
986
43.4 1003 45.6 1019 47.8 1035 50.0 1050 52.2 1065 54.5
4.00
4.25
—
—
—
—
—
—
—
—
—
—
909 30.2
930 32.0
—
922 32.2
943 34.1
964 36.0
939 34.5
957 36.2
977 38.3
959 37.2
977 39.0
994 40.8 1010 40.3 1029 44.5
981 40.1
998 42.0 1015 43.9 1031 45.9 1047 47.8
1116 61.7 1132 64.0 1146 65.3 1161 68.7 1175 71.0
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.
34
2.00
2.25
674
12.7
702
14.1
729
696
14.2
720
15.5
745
719
15.8
742
17.2
764
742
17.8
765
19.1
787
764
19.5
787
21.0
806
789
21.5
810
23.1
831
813
23.8
833
25.4
853
839
26.3
856
28.0
878
863
28.8
883
30.6
902
889
31.7
908
33.5
927
917
34.8
934
38.7
953
945
38.0
961
40.0
978
4.50
4.75
5.00
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
969 38.8
—
—
1118 59.6
2.00
2.25
692 13.9
715 15.3
739 16.7
713 15.5
736 16.9
759 18.3
735 17.2
758 18.7
781 20.2
758 19.0
780 20.6
802 22.1
782 21.0
803 22.8
824 24.3
805 23.2
826 24.8
846 26.5
831 25.8
851 27.3
871 29.1
855 28.1
875 29.9
894 31.7
881 30.8
900 32.7
919 34.6
907 33.7
925 35.0
943 37.6
935 38.0
952 38.9
968 40.9
963 40.3
979 42.4
995 44.5
991 44.0 1007 46.1 1023 48.3 1038 50.5
4.50
4.75
5.00
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
984 38.0
—
—
997 40.3 1016 42.4
1115 60.1 1139 63.6
—
—
2.50
2.75
15.6
—
—
17.0
770
18.5
18.6
788
20.1
20.6
808
22.1
22.6
829
24.2
24.8
851
26.4
27.1
873
28.9
29.8
897
31.8
32.5
921
34.3
35.3
945
37.4
38.7
971
40.7
42.1
995
44.2
2.50
2.75
765 18.2
781 19.7
802 21.7
823 23.7
845 25.9
866 28.2
890 30.9
913 33.6
937 35.5
961 39.6
986 43.0
1011 46.6
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