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PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 835 to 1085 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 74 for General Fan Performance Notes.
580F120,121 (10 TONS) — ALTERNATE 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 555 0.72 630 629 0.87 765 696 1.03 904 757 1.19 1048 814 1.36 1198
3100 568 0.78 686 641 0.94 825 706 1.10 968 766 1.27 1115 823 1.45 1269
3200 582 0.85 745 652 1.01 888 717 1.18 1035 776 1.35 1186 832 1.53 1343
3300 595 0.92 808 664 1.09 955 728 1.26 1106 786 1.44 1261 841 1.62 1421
3400 609 1.00 874 677 1.17 1026 739 1.35 1181 797 1.53 1340 851 1.71 1503
3500 623 1.08 945 689 1.25 1100 750 1.43 1259 807 1.62 1422 860 1.81 1589
3600 636 1.16 1019 702 1.34 1179 762 1.53 1341 817 1.72 1508 870 1.91 1679
3700 650 1.25 1097 714 1.44 1261 773 1.63 1428 828 1.82 1598 880 2.02 1772
3800 664 1.34 1179 727 1.54 1347 785 1.73 1518 839 1.93 1693 890 2.13 1870
3900 678 1.44 1266 740 1.64 1438 797 1.84 1613 850 2.04 1791 901 2.25 1973
4000 693 1.55 1356 753 1.75 1533 809 1.95 1712 861 2.16 1894 911 2.37 2080
4100 707 1.65 1451 766 1.86 1632 821 2.07 1816 873 2.28 2002 922 2.50 2191
4200 721 1.77 1551 779 1.98 1736 833 2.19 1924 884 2.41 2114 933 2.63 2307
4300 735 1.89 1656 792 2.10 1845 846 2.32 2037 896 2.54 2231 944 2.77 2428
4400 750 2.01 1764 806 2.23 1958 858 2.45 2154 908 2.68 2352 — — —
4500 764 2.14 1879 819 2.37 2077 871 2.59 2276 920 2.82 2479 — — —
4600 779 2.28 1998 833 2.51 2200 883 2.74 2404 — — — — — —
4700 793 2.42 2121 846 2.65 2328 896 2.89 2537 — — — — — —
4800 808 2.56 2251 8602.812462—————————
4900 822 2.72 2385 ————————————
5000 837 2.88 2525 — — — — — — — — — — — —
580F120,121 (10 TONS) — ALTERNATE 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 867 1.54 1353 918 1.72 1513 966 1.91 1680 1012 2.11 1852 1056 2.31 2029
3100 876 1.63 1427 926 1.81 1590 973 2.00 1760 1019 2.20 1934 1062 2.41 2114
3200 884 1.71 1504 934 1.90 1671 981 2.10 1843 1026 2.30 2020 1069 2.51 2203
3300 893 1.81 1586 942 2.00 1755 988 2.20 1931 1033 2.40 2111 1076 2.62 2295
3400 902 1.90 1671 950 2.10 1844 996 2.30 2022 1041 2.51 2205 1083 2.73 2393
3500 911 2.01 1760 959 2.21 1937 1004 2.41 2118 1048 2.62 2303 1091 2.84 2494
3600 920 2.11 1854 967 2.32 2033 1013 2.53 2217 1056 2.74 2406 — — —
3700 929 2.22 1951 976 2.43 2134 1021 2.65 2322 1064 2.86 2513 — — —
3800 939 2.34 2053 985 2.55 2239 1030 2.77 2430 — — — — — —
3900 949 2.46 2159 995 2.68 2349 1039 2.90 2543 — — — — — —
4000 959 2.59 2269 1004 2.81 2462 — — — — — — — — —
4100 969 2.72 2384 — — — — — — — — — — — —
4200 979 2.85 2504 — — — — — — — — — — — —
4300 ———————————————
4400 ———————————————
4500 ———————————————
4600 ———————————————
4700 ———————————————
4800 ———————————————
4900 ———————————————
5000 ———————————————
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
580F036-151