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108
PERFORMANCE DATA — 549B, 549C (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 1300 to 1685 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See page 103 for General Fan Performance Notes.
549B072 (6 TONS) HIGH-STATIC MOTOR (BELT DRIVE)*
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
1800 822 0.51 455 927 0.66 589 1018 0.82 728 1100 0.98 873 1174 1.15 1024
1900
855 0.59 520 957 0.74 659 1046 0.91 805 1127 1.08 956 1200 1.25 1113
2000
889 0.66 591 988 0.83 737 1075 1.00 888 1154 1.18 1045 1226 1.36 1208
2100
923 0.75 668 1019 0.92 821 1104 1.10 979 1182 1.29 1142 1253 1.48 1310
2200
957 0.85 753 1051 1.03 912 1134 1.21 1077 1210 1.40 1245 1280 1.60 1419
2300
992 0.95 845 1083 1.14 1011 1164 1.33 1182 1239 1.53 1357 1308 1.73 1537
2400
1026 1.06 945 1115 1.26 1118 1195 1.46 1295 1268 1.66 1476 1336 1.87 1662
2500
1061 1.19 1053 1148 1.39 1233 1226 1.59 1416 1297 1.81 1604 1364 2.02 1796
2600
1097 1.32 1169 1181 1.53 1356 1257 1.74 1546 1327 1.96 1740 1393 2.18 1938
2700
1132 1.46 1294 1214 1.67 1487 1289 1.90 1684 1358 2.12 1885 1422 2.35 2089
2800
1168 1.61 1428 1247 1.83 1629 1320 2.06 1832 1388 2.30 2039 1452 2.53 2249
2900
1204 1.77 1572 1281 2.00 1779 1353 2.24 1989 1419 2.48 2202 1482 2.72 2419
3000
1240 1.94 1725 1315 2.18 1939 1385 2.43 2156 1451 2.68 2376 — — —
549B072 (6 TONS) HIGH-STATIC MOTOR (BELT DRIVE)* (cont)
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
1800 1244 1.33 1182 1308 1.51 1345 1369 1.70 1513 1427 1.90 1687 1483 2.10 1867
1900
1268 1.44 1275 1332 1.63 1443 1393 1.82 1617 1450 2.02 1796 1505 2.23 1979
2000
1294 1.55 1376 1357 1.74 1549 1417 1.95 1727 1474 2.15 1911 1528 2.36 2100
2100
1320 1.67 1483 1382 1.87 1662 1441 2.08 1845 1498 2.29 2034 1552 2.51 2227
2200
1346 1.80 1598 1408 2.01 1782 1466 2.22 1971 1522 2.44 2165 1575 2.66 2363
2300
1372 1.94 1721 1434 2.15 1911 1491 2.37 2105 1547 2.59 2304 1600 2.82 2507
2400
1400 2.09 1852 1460 2.31 2047 1517 2.53 2247 1572 2.76 2451 — — —
2500
1427 2.24 1992 1487 2.47 2192 1543 2.70 2398 — — — — — —
2600
1455 2.41 2140 1514 2.64 2346 1570 2.88 2557 — — — — — —
2700
1483 2.59 2297 1541 2.83 2509 — — — — — — — — —
2800
1512 2.77 2463 — — — — — — — — — — — —
2900
—— — —— — —— — —— — —— —
3000
—— — —— — —— — —— — —— —
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
549B, 549C