York MFSI, Manual

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YORK® MIXED FLOW, INLINE FAN, MODEL MFSI
18
330
Wheel Dia. Outlet Area Tip Speed (FPM) Maximum BHP Max. Motor Frame Size
40.25 in. 10.8 sq. ft. 10.54 x RPM 11.68 (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
6500 602 321 0.38
393 0.70 455 1.06
- - - - - - - - - - - - - -
7200 667 339 0.43 408 0.78 466 1.16 - - - - - - - - - - - - - -
7900 731 357 0.50
424 0.87 480 1.27 531 1.71
- - - - - - - - - - - -
8600 796 376 0.57 440 0.97 494 1.40 543 1.85 590 2.33 - - - - - - - - - -
9300 861 396 0.65 457 1.08
510 1.53 557 2.00 602 2.50 644 3.03
- - - - - - - -
10000 926 416 0.75 474 1.20 526 1.68 572 2.17 615 2.68 656 3.23 695 3.81 - - - - - -
11000 1019 447 0.90 500 1.38 550 1.90 595 2.43 636 2.98 675 3.54 712 4.14 748 4.76 - - - -
12000 1111 480 1.08 527 1.58 575 2.14 618 2.71
658 3.29 696 3.89 731 4.51 765 5.16 799 5.83 832 6.52
13000 1204 513 1.29 555 1.81 600 2.40 642 3.01 682 3.64 718 4.27 752 4.92 785 5.59 817 6.28 848 6.99
14000 1296 546 1.53 585 2.07 626 2.68 667 3.34 705 4.00
741 4.68 775 5.36 807 6.06 837 6.78 867 7.52
15000 1389 580 1.81 615 2.37 654 3.00 692 3.69 730 4.39 765 5.11 798 5.84 829 6.57 859 7.32 888 8.08
16000 1481 615 2.12 647 2.70 682 3.35 719 4.07 755 4.81 789 5.57 821 6.34
852 7.11 881 7.89 909 8.69
17000 1574 650 2.47 679 3.07 712 3.74 746 4.48 780 5.26 813 6.05 845 6.86 875 7.68
904 8.50 932 9.33
18000 1667 685 2.86 712 3.48 742 4.18 774 4.93 806 5.74 839 6.57 870 7.42 899 8.28 928 9.14 955 10.01
19000 1759 720 3.29 746 3.94 773 4.65 803 5.43 834 6.26 864 7.12 894 8.01 924 8.91 952 9.81 979 10.73
20000 1852 755 3.77 779 4.44 805 5.17 833 5.97 862 6.82 891 7.71 920 8.63 948 9.57 976 10.52 1002 11.47
21000 1944 791 4.30 813 4.99 838 5.74 864 6.56 891 7.43 918 8.35 946 9.30 974 10.27 1001 11.26 1027 12.25
22000 2037 826 4.87 848 5.59 871 6.37 895 7.20 920 8.09 947 9.03 973 10.01 1000 11.01 1026 12.03 1051 13.07
23000 2130 862 5.50 882 6.25 904 7.04 927 7.90 951 8.81 976 9.76 1001 10.76 1026 11.80 1052 12.85 1076 13.93
24000 2222 898 6.19 917 6.95 938 7.78 959 8.65 982 9.58 1005 10.55 1029 11.58 1054 12.63 1078 13.72 1102 14.83
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
15000 1389 916 8.86 943 9.66 997 11.32 1050 13.08 - - - - - - - - - - - -
15500 1435
926 9.18 953 9.99 1006 11.67 1057 13.43
- - - - - - - - - - - -
16000 1481 937 9.50 963 10.32 1015 12.03 1065 13.81 1115 15.68 - - - - - - - - - -
16500 1528 948 9.83 974 10.67 1025 12.40 1074 14.20 1122 16.08 - - - - - - - - - -
17000 1574
959 10.18 985 11.03 1035 12.79 1083 14.61 1130 16.50 1177 18.48
- - - - - - - -
17500 1620 970 10.53 996 11.40 1045 13.19 1093 15.03 1139 16.94 1185 18.93 1230 21.00 - - - - - -
18000 1667
981 10.89 1007 11.78 1056 13.60 1103 15.47 1148 17.40 1193 19.40 1237 21.49
- - - - - -
18500 1713 993 11.27 1018 12.17 1066 14.02 1113 15.92 1158 17.87 1202 19.90 1245 21.99 1287 24.16 - - - -
19000 1759 1004 11.65 1029 12.57 1077 14.46 1123 16.38 1168 18.36 1211 20.41 1253 22.52 1295 24.70 1336 26.96 - -
20000 1852 1028 12.43
1053 13.40 1100 15.36 1145 17.35 1188 19.39 1230 21.48 1271 23.63 1312 25.84 1351 28.12 1391 30.47
21000 1944 1052 13.26 1076 14.26 1123 16.30 1167 18.36 1210 20.47 1251 22.61 1291 24.81 1330 27.06 1368 29.37 1406 31.74
22000 2037 1076 14.11 1100 15.16
1146 17.28 1190 19.42 1232 21.60 1272 23.80 1311 26.05 1349 28.35 1387 30.71 1424 33.11
23000 2130 1101 15.01 1125 16.10 1170 18.30 1213 20.53 1255 22.77 1294 25.05 1333 27.36 1370 29.72 1407 32.12 1442 34.57
24000 2222 1126 15.95 1149 17.08 1194 19.37 1237 21.67
1278 24.00 1317 26.35 1355 28.73 1391 31.14 1427 33.60 1462 36.10
25000 2315 1151 16.93 1174 18.10 1218 20.47 1261 22.86 1301 25.26 1340 27.69 1377 30.15 1414 32.63 1449 35.15 1483 37.70
26000 2407 1178 17.97 1200 19.17 1243 21.61 1285 24.09 1325 26.58
1363 29.09 1400 31.62 1436 34.18 1471 36.76 1505 39.38
27000 2500 1204 19.05 1226 20.29 1268 22.81 1309 25.36 1349 27.94 1387 30.53
1424 33.14 1459 35.77 1493 38.43
- -
28000 2593 1231 20.20 1252 21.47 1294 24.05 1334 26.68 1373 29.34 1411 32.02 1447 34.71 1482 37.42 - - - -
29000 2685 1259 21.41 1279 22.70 1320 25.35 1359 28.06 1398 30.79 1435 33.55 1471 36.33 1506 39.13 - - - -
30000 2778 1288 22.69 1307 24.01 1346 26.71 1385 29.48 1423 32.30 1459 35.14 1495 38.00 - - - - - -
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 999 184 221 1208
II 1052 212 230 1510
78
7/16
(MAX)
63
3/4
53
49
38
7/8