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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 685 to 935 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 74 for General Fan Performance Notes.
580F120 (10 TONS) — STANDARD 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
3000 726 0.75 656 793 0.94 822 853 1.14 997 910 1.35 1181 962 1.56 1373
3100 746 0.81 713 811 1.01 883 870 1.21 1062 926 1.42 1250 978 1.65 1447
3200 766 0.88 773 829 1.08 947 887 1.29 1131 942 1.51 1323 993 1.74 1524
3300 786 0.95 836 847 1.16 1016 905 1.37 1204 958 1.60 1400 1008 1.83 1604
3400 806 1.03 904 866 1.24 1088 922 1.46 1280 975 1.69 1481 1024 1.92 1689
3500 826 1.11 975 885 1.33 1163 940 1.55 1360 991 1.78 1565 1040 2.03 1778
3600 846 1.20 1050 904 1.42 1243 958 1.65 1444 1008 1.88 1654 1056 2.13 1870
3700 866 1.29 1129 923 1.51 1327 975 1.75 1532 1025 1.99 1746 1073 2.24 1967
3800 886 1.38 1212 942 1.61 1415 994 1.85 1625 1043 2.10 1843 1089 2.36 2068
3900 907 1.48 1299 961 1.72 1507 1012 1.96 1722 1060 2.21 1944 —— —
4000 927 1.58 1391 980 1.83 1603 1030 2.08 1823 1078 2.33 2049 —— —
4100 948 1.69 1487 1000 1.94 1704 1049 2.20 1928 —— — —— —
4200 968 1.81 1588 1019 2.06 1809 1067 2.32 2038 —— — —— —
4300 989 1.93 1694 1039 2.19 1920 —— — —— — —— —
4400 1009 2.06 1804 1058 2.32 2034 —— — —— — —— —
4500 1030 2.19 1919 ————————————
4600 1051 2.32 2039 ————————————
4700 ———————————————
4800 ———————————————
4900 ———————————————
5000 ———————————————
580F120 (10 TONS) — STANDARD 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
3000 1012 1.79 1574 1060 2.03 1781 1105 2.28 1997 —— — —— —
3100 1027 1.88 1651 1073 2.12 1863 1118 2.37 2081 —— — —— —
3200 1041 1.97 1732 1088 2.22 1947 —— — —— — —— —
3300 1056 2.07 1817 1102 2.32 2036 —— — —— — —— —
3400 1071 2.17 1905 ————————————
3500 1087 2.28 1998 ————————————
3600 1102 2.39 2094 ————————————
3700 ———————————————
3800 ———————————————
3900 ———————————————
4000 ———————————————
4100 ———————————————
4200
———————————————
4300 ———————————————
4400 ———————————————
4500 ———————————————
4600 ———————————————
4700 ———————————————
4800 ———————————————
4900 ———————————————
5000 ———————————————
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
580F036-151