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FAN PERFORMANCE (BELT DRIVE)
TABLE 19 – 581J*04----3 PHASE----3 TON HORIZONTAL SUPPLY
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900 582 0.14 715 0.24 825 0.35 921 0.48 1007 0.63 1086 0.79 1159 0.96 1228 1.14 1293 1.33 1354 1.53
975 606 0.16 735 0.26 843 0.38 938 0.51 1023 0.66 1101 0.82 1174 0.99 1242 1.18 1306 1.37 1367 1.57
1050 630 0.18 756 0.29 862 0.41 955 0.55 1040 0.70 1117 0.86 1189 1.03 1256 1.22 1320 1.41 1381 1.62
1125 655 0.21 778 0.32 882 0.45 974 0.58 1057 0.74 1133 0.90 1204 1.08 1271 1.26 1335 1.46 1395 1.67
1200 681 0.24 800 0.35 902 0.48 992 0.63 1074 0.78 1150 0.95 1221 1.13 1287 1.31 1350 1.51 1410 1.72
1275 708 0.27 823 0.39 923 0.53 1012 0.67 1093 0.83 1168 1.00 1237 1.18 1303 1.37 1365 1.57 1425 1.78
1350 735 0.31 847 0.43 945 0.57 1032 0.72 1112 0.88 1186 1.05 1255 1.24 1320 1.43 1382 1.63 1441 1.84
1425 762 0.35 871 0.48 967 0.62 1053 0.77 1131 0.94 1204 1.11 1272 1.30 1337 1.49 1398 1.70 1457 1.91
1500 790 0.40 896 0.53 990 0.67 1074 0.83 1151 1.00 1223 1.18 1291 1.36 1355 1.56 1415 1.77 1473 1.99
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field---supplied drive is required.
* Medium static 770---1175 RPM, 1.2 BHP max
* High static 1035---1466 RPM, 2.4 BHP max
TABLE 20 – 581J*04----3 PHASE----3 TON VERTICAL SUPPLY
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900 592 0.14 721 0.25 826 0.38 916 0.53 997 0.69 1070 0.88 1137 1.07 1201 1.29 1260 1.51 1317 1.75
975 616 0.17 744 0.28 847 0.41 936 0.56 1016 0.72 1089 0.91 1156 1.11 1219 1.32 1279 1.54 1335 1.78
1050 641 0.19 766 0.30 868 0.44 957 0.59 1036 0.76 1108 0.94 1175 1.14 1238 1.36 1297 1.58 1353 1.82
1125 667 0.22 790 0.33 890 0.47 978 0.63 1056 0.80 1128 0.98 1195 1.18 1257 1.40 1316 1.62 1372 1.86
1200 693 0.25 813 0.37 913 0.51 999 0.67 1077 0.84 1148 1.03 1214 1.23 1276 1.44 1335 1.67 1391 1.91
1275 720 0.29 837 0.41 935 0.55 1021 0.71 1098 0.88 1169 1.07 1235 1.28 1296 1.50 1354 1.72 1410 1.97
1350 747 0.33 862 0.45 958 0.60 1043 0.76 1119 0.94 1190 1.13 1255 1.33 1316 1.55 1374 1.78 1429 2.03
1425 775 0.37 887 0.50 982 0.65 1066 0.81 1141 0.99 1211 1.19 1276 1.39 1337 1.61 1394 1.85 1449 2.09
1500 802 0.42 912 0.55 1006 0.70 1088 0.87 1163 1.05 1232 1.25 1297 1.46 1357 1.68 1415 1.91 1469 2.16
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field---supplied drive is required.
* Medium static 770---1175 RPM,, 1.2 BHP max
* High static 1035---1466 RPM, 2.4 BHP max
581J