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PERFORMANCE DATA — 548F (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 1075 to 1455 rpm. All other rpms require a field-
supplied drive.
See General Fan Performance notes on page 27.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.40.
LEGEND See General Fan Performance notes on page 27.
548F048 (4 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
1200 708 0.26 256 836 0.36 359 941 0.47 464 1033 0.57 572 1116 0.69 683
1300 743 0.31 307 868 0.42 417 971 0.53 530 1062 0.65 645 1143 0.77 764
1400 780 0.37 364 900 0.49 483 1002 0.61 603 1091 0.73 726 1172 0.86 851
1500 816 0.43 428 934 0.56 556 1033 0.69 685 1121 0.82 815 1201 0.95 947
1600 854 0.50 501 968 0.64 638 1065 0.78 774 1152 0.92 912 1230 1.06 1052
1700 892 0.59 582 1002 0.73 728 1098 0.88 872 1183 1.02 1018 1260 1.17 1166
1800 930 0.68 672 1038 0.83 826 1131 0.99 980 1215 1.14 1134 1291 1.30 1289
1900 969 0.78 772 1073 0.94 935 1165 1.10 1097 1247 1.27 1259 1322 1.43 1422
2000 1008 0.89 881 1110 1.06 1054 1199 1.23 1224 1280 1.40 1395 1354 1.57 1566
548F048 (4 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
1200 1191 0.80 799 1261 0.92 917 1327 1.04 1039 1389 1.17 1165 1448 1.30 1293
1300 1218 0.89 885 1288 1.02 1010 1353 1.14 1138 1414 1.28 1270 1473 1.41 1404
1400 1246 0.99 980 1315 1.12 1111 1379 1.25 1246 1440 1.39 1383 1499 1.53 1523
1500 1274 1.09 1083 1342 1.23 1221 1406 1.37 1362 1467 1.51 1505 1525 1.66 1652
1600 1303 1.20 1194 1370 1.35 1339 1434 1.49 1487 1494 1.65 1637 1551 1.80 1790
1700 1332 1.32 1315 1399 1.48 1467 1462 1.63 1622 1522 1.79 1778 1579 1.95 1938
1800 1362 1.45 1446 1428 1.61 1605 1490 1.78 1767 1550 1.94 1930 1606 2.11 2096
1900 1392 1.60 1587 1458 1.76 1753 1519 1.93 1922 1578 2.10 2092 1634 2.28 2265
2000 1423 1.75 1738 1488 1.92 1912 1549 2.10 2088 1607 2.28 2266 ———
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
548F060 (5 TONS) — STANDARD MOTOR (DIRECT DRIVE)*
Airflow
(Cfm)
Low Speed Medium Speed High Speed
208 v 230, 460, 575 v 208 v 230, 460, 575 v 208 v 230, 460, 575 v
ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts ESP Bhp Watts
1500 1.01 0.67 750 1.25 0.71 791 1.26 0.70 782 1.46 0.76 845 1.46 0.79 875 1.52 0.85 949
1600 0.82 0.70 780 1.09 0.74 824 1.11 0.74 821 1.32 0.79 883 1.33 0.82 913 1.41 0.89 988
1700 0.64 0.73 810 0.97 0.77 857 0.99 0.77 861 1.22 0.83 921 1.24 0.85 950 1.33 0.92 1027
1800 0.44 0.75 839 0.81 0.80 891 0.84 0.80 900 1.09 0.86 959 1.11 0.89 988 1.22 0.96 1066
1900 0.32 0.78 869 0.66 0.83 924 0.69 0.83 940 0.96 0.90 997 0.99 0.92 1025 1.11 0.99 1105
2000 0.21 0.81 899 0.47 0.86 957 0.51 0.86 979 0.80 0.93 1035 0.83 0.95 1063 0.97 1.03 1144
2100 0.13 0.83 929 0.32 0.89 990 0.36 0.89 1018 0.64 0.96 1073 0.71 0.99 1101 0.86 1.06 1183
2200 0.05 0.86 959 0.19 0.92 1023 0.21 0.92 1058 0.50 1.00 1111 0.58 1.02 1138 0.75 1.10 1222
2300 — — — 0.08 0.95 1057 0.08 0.95 1097 0.34 1.03 1149 0.39 1.06 1176 0.57 1.13 1261
2400 — — — — — — — — — 0.24 1.07 1187 0.29 1.09 1213 0.49 1.17 1300
2500 — — — — — — — — — 0.15 1.10 1225 0.15 1.12 1251 0.34 1.20 1340
Bhp — Brake Horsepower Input to Fan
ESP — External Static Pressure (in. wg)
Watts — Input Watts to Motor
548F