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Table 24 — Fan Performance 581B060, Single-Phase — Horizontal Discharge Units;
Standard Motor (Belt Drive)*
LEGEND
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 1.30.
3. See page 33 for general fan performance notes.
Table 25 — Fan Performance 581B060, Three-Phase — Horizontal Discharge Units;
Standard Motor (Belt Drive)*
LEGEND
*Motor drive range: 1035 to 1460 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
3. See page 33 for general fan performance notes.
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1500 800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 753
1600 839 0.46 412 938 0.57 505 1030 0.68 605 1115 0.80 714 1195 0.93 829
1700 879 0.54 483 974 0.65 580 1062 0.77 684 1144 0.90 796 1221 1.03 914
1800 919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008
1900 960 0.73 648 1047 0.85 754 1129 0.98 867 1206 1.11 986 1279 1.25 1111
2000 1001 0.84 744 1085 0.96 855 1163 1.09 972 1238 1.23 1095 — — —
2100 1043 0.96 850 1123 1.09 965 1199 1.22 1086 — —————
2200 1085 1.09 966 1162 1.22 1086 —————————
2300 1127 1.23 1092 ————————————
2400 ———————————————
2500 ———————————————
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1500 1247 0.98 873 1320 1.13 1002 1390 1.28 1137
——————
1600 1270 1.07 952 1342 1.22 1083 —————————
1700 1295 1.17 1040 ————————————
1800 1321 1.28 1137 ————————————
1900 ———————————————
2000 ———————————————
2100 ———————————————
2200 ———————————————
2300 ———————————————
2400 ———————————————
2500 ———————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1500 800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 753
1600 839 0.46 412 938 0.57 505 1030 0.68 605 1115 0.80 714 1195 0.93 829
1700 879 0.54 483 974 0.65 580 1062 0.77 684 1144 0.90 796 1221 1.03 914
1800 919 0.63 561 1010 0.75 663 1095 0.87 771 1174 1.00 886 1250 1.14 1008
1900 960 0.73 648 1047 0.85 754 1129 0.98 867 1206 1.11 986 1279 1.25 1111
2000 1001 0.84 744 1085 0.96 855 1163 1.09 972 1238 1.23 1095 1309 1.38 1224
2100 1043 0.96 850 1123 1.09 965 1199 1.22 1086 1271 1.37 1213 1340 1.52 1346
2200 1085 1.09 966 1162 1.22 1086 1235 1.36 1211 1305 1.51 1342 1372 1.67 1479
2300 1127 1.23 1092 1201 1.37 1217 1272 1.52 1347 1340 1.67 1482 1405 1.83 1623
2400 1169 1.38 1229 1241 1.53 1359 1310 1.68 1493 1375 1.84 1633 1439 2.00 1778
2500 1212 1.55 1378 1281 1.70 1513 1348 1.86 1652 1412 2.02 1796 1473 2.19 1945
AIRFLOW
CFM
EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
1500 1247 0.98 873 1320 1.13 1002 1390 1.28 1137 1457 1.44 1280 1522 1.61 1430
1600 1270 1.07 952 1342 1.22 1083 1411 1.37 1221 1476 1.54 1365 1540 1.71 1517
1700 1295 1.17 1040 1365 1.32 1173 1432 1.48 1313 1497 1.64 1459 1559 1.82 1612
1800 1321 1.28 1137 1390 1.43 1273 1455 1.59 1415 1518 1.76 1563 1579 1.93 1718
1900 1348 1.40 1243 1415 1.56 1381 1479 1.72 1526 1541 1.89 1677 1601 2.06 1834
2000 1377 1.53 1359 1442 1.69 1500 1505 1.86 1648 1565 2.03 1801 1624 2.21 1961
2100 1406 1.67 1485 1470 1.83 1629 1531 2.00 1780 1591 2.18 1936 1648 2.36 2098
2200 1437 1.83 1621 1499 1.99 1769 1559 2.16 1923 1617 2.34 2082 ———
2300 1468 1.99 1769 1529 2.16 1920 1587 2.34 2077 ——————
2400 1500 2.17 1928 1559 2.35 2083 —————————
2500 1533 2.36 2098 ————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor