York MFSI, Manual

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YORK® MIXED FLOW, INLINE FAN, MODEL MFSI
20
402
Wheel Dia. Outlet Area Tip Speed (FPM) Maximum BHP Max. Motor Frame Size
49.0 in. 16.1 sq. ft. 12.83 x RPM 31.26 (RPM / 1000)
3
365T
Performance shown is for Installation Type B: free inlet, ducted outlet. Power rating (BHP) does not include belt drive losses. Performance ratings
do not include the effects of appurtenances in the airstream. Bold figures indicate maximum static efficiency. Approximate fan weights are less
motor and accessories.
CFM OV
1/4" SP 1/2" SP 3/4" SP 1" SP 1 1/4" SP 1 1/2" SP 1 3/4" SP 2" SP 2 1/4" SP 2 1/2" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
10000 621 269 0.59
327 1.08 376 1.62
- - - - - - - - - - - - - -
11200 696 286 0.69 341 1.23 388 1.80 432 2.44 - - - - - - - - - - - -
12400 770 303 0.81
357 1.39 402 2.01 443 2.67 482 3.38
- - - - - - - - - -
13600 845 322 0.95 373 1.57 417 2.23 456 2.92 492 3.66 528 4.45 - - - - - - - -
14800 919 342 1.10 389 1.77
432 2.48 470 3.21 505 3.97 538 4.78 571 5.64
- - - - - -
16000 994 362 1.28 406 1.98 448 2.74 485 3.52 519 4.32 551 5.15 582 6.03 612 6.95 - - - -
18000 1118 398 1.64 436 2.39 475 3.22 511 4.08 544 4.95 574 5.85 603 6.77 631 7.73 658 8.73 685 9.76
20000 1242 435 2.09 468 2.87 503 3.76 538 4.70 570 5.65
599 6.62 627 7.61 654 8.63 679 9.67 704 10.74
22000 1366 472 2.61 501 3.43 533 4.37 565 5.38 596 6.42 625 7.47 652 8.54 678 9.62 703 10.72 726 11.84
24000 1491 511 3.24 537 4.10 565 5.08 595 6.14 624 7.25 652 8.39 678 9.54
703 10.70 727 11.87 751 13.06
26000 1615 549 3.97 573 4.87 598 5.89 625 7.00 652 8.17 679 9.38 705 10.61 730 11.86 753 13.11 776 14.38
28000 1739 588 4.81 609 5.76 632 6.81 657 7.96 682 9.19 708 10.46 733 11.77 757 13.10 780 14.44 802 15.78
30000 1863 627 5.77 647 6.77 668 7.87 690 9.05 714 10.32 737 11.65 761 13.03 784 14.43 807 15.85 828 17.28
32000 1988 667 6.87 685 7.92 704 9.05 725 10.27 746 11.58 768 12.96 790 14.39 812 15.86 834 17.36 855 18.87
34000 2112 706 8.10 723 9.20 741 10.38 760 11.64 779 12.99 800 14.40 821 15.88 842 17.41 863 18.98 883 20.56
36000 2236 746 9.48 762 10.63 778 11.85 796 13.16 814 14.54 833 16.00 852 17.52 872 19.10 892 20.72 911 22.38
38000 2360 786 11.01 801 12.22 816 13.49 832 14.84 849 16.26 867 17.75 885 19.31 903 20.94 922 22.61 941 24.32
40000 2484 826 12.71 840 13.97 854 15.29 869 16.68 885 18.14 902 19.67 918 21.27 936 22.94 953 24.65 971 26.42
42000 2609 866 14.59 879 15.89 893 17.27 907 18.70 922 20.21 937 21.78 953 23.41 969 25.11 986 26.87 1002 28.68
44000 2733 906 16.64 918 18.00 931 19.42 945 20.91 959 22.45 973 24.06 988 25.74 1003 27.48 1019 29.28 1034 31.13
CFM OV
2 3/4" SP 3" SP 3 1/2" SP 4" SP 4 1/2" SP 5" SP 5 1/2" SP 6" SP 6 1/2" SP 7" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
21000 1304 739 12.40 762 13.56 808 15.99 - - - - - - - - - - - - - -
22200 1379
752 13.12 774 14.30 819 16.76 862 19.36
- - - - - - - - - - - -
23400 1453 766 13.87 788 15.09 830 17.60 872 20.23 913 22.99 - - - - - - - - - -
24600 1528 780 14.67 802 15.92 843 18.49 884 21.16 923 23.95 - - - - - - - - - -
25800 1602
795 15.51 816 16.80 857 19.43 896 22.16 934 24.99 972 27.93
- - - - - - - -
27000 1677 810 16.38 831 17.71 871 20.42 909 23.21 947 26.09 983 29.07 1019 32.17
28200 1752
826 17.29 846 18.67 886 21.46 923 24.32 960 27.26 995 30.29 1030 33.41 1064 36.65 1098 40.00
29400 1826 841 18.23 862 19.66 901 22.54 938 25.47 973 28.48 1008 31.57 1042 34.74 1075 38.01 1108 41.38 1140 44.86
30600 1901 857 19.21 877 20.68 916 23.66 952 26.68 987 29.76 1021 32.91 1054 36.14 1087 39.45 1119 42.86 1151 46.36
31800 1975 873 20.22 893 21.74
931 24.81 967 27.93 1002 31.09 1035 34.31 1068 37.60 1100 40.97 1131 44.42 1162 47.96
33000 2050 889 21.27 909 22.84 947 26.01 983 29.22 1017 32.46 1050 35.76 1082 39.12 1113 42.55 1143 46.05 1173 49.64
34200 2124 906 22.35 925 23.97 963 27.24
998 30.55 1032 33.89 1065 37.27 1096 40.70 1127 44.20 1157 47.76 1186 51.40
35400 2199 922 23.48 942 25.15 979 28.52 1014 31.92 1047 35.35 1080 38.82 1111 42.34 1141 45.91 1170 49.54 1199 53.24
36600 2273 939 24.64 958 26.36 995 29.83 1030 33.33
1063 36.86 1095 40.43 1126 44.03 1156 47.68 1185 51.38 1213 55.14
37800 2348 957 25.86 975 27.62 1011 31.18 1046 34.79 1079 38.42 1110 42.08 1141 45.77 1170 49.51 1199 53.29 - -
39000 2422 974 27.13 992 28.93 1028 32.58 1062 36.28 1094 40.02
1126 43.78 1156 47.56 1185 51.39 1214 55.25
- -
40200 2497 992 28.45 1010 30.28 1044 34.03 1078 37.83 1110 41.66 1142 45.52
1172 49.40 1201 53.32
- - - -
41400 2571 1010 29.82 1027 31.70 1061 35.52 1095 39.41 1127 43.34 1158 47.30 1187 51.29 - - - - - -
42600 2646 1029 31.26 1045 33.17 1079 37.07 1111 41.05 1143 45.08 1174 49.14 1203 53.22 - - - - - -
43800 2720 1047 32.77 1064 34.71 1096 38.68 1128 42.74 1159 46.86 1190 51.02 - - - - - - - -
j
WR
2
= Inertial Starting Force
k
Maximum RPM is based on operating temperature of 100°F.
From 101°F through 200°F multiply RPM by 0.93.
Class
Fan Weight
(Lbs.)
Wheel Weight
(Lbs.)
WR
2 j
(Lbs. Ft.
2
)
Max. Wheel RPM
k
(Steel or Aluminum)
I 4583 286 491 973
II 1666 324 506 1216
89
3/4
(MAX)
77
1/8
65
3/4
59
11/16
47
1/2