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Table 28 — Fan Performance 580F120,121 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*
LEGEND
*Motor drive range: 830 to 1130 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 5.25.
3. See page 29 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
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 955 2.91 2553
4500 764 2.14 1879 819 2.37 2077 871 2.59 2276 920 2.82 2479 966 3.06 2684
4600 779 2.28 1998 833 2.51 2200 883 2.74 2404 932 2.97 2611 978 3.21 2820
4700 793 2.42 2121 846 2.65 2328 896 2.89 2537 944 3.13 2747 989 3.37 2960
4800 808 2.56 2251 860 2.81 2462 909 3.05 2674 956 3.29 2889 1001 3.54 3106
4900 822 2.72 2385 873 2.96 2601 922 3.21 2818 968 3.46 3037 1013 3.71 3258
5000 837 2.88 2525 887 3.13 2745 935 3.38 2966 981 3.63 3189 1024 3.89 3414
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 1098 2.96 2600
3700 929 2.22 1951 976 2.43 2134 1021 2.65 2322 1064 2.86 2513 1106 3.09 2710
3800 939 2.34 2053 985 2.55 2239 1030 2.77 2430 1073 2.99 2625 1114 3.22 2824
3900 949 2.46 2159 995 2.68 2349 1039 2.90 2543 1081 3.12 2741 1122 3.35 2943
4000 959 2.59 2269 1004 2.81 2462 1048 3.03 2660 1090 3.26 2861 1130 3.49 3067
4100 969 2.72 2384 1014 2.94 2581 1057 3.17 2782 1098 3.40 2987 1139 3.64 3195
4200 979 2.85 2504 1024 3.08 2705 1066 3.31 2909 1107 3.55 3117 1147 3.79 3329
4300 990 3.00 2629 1034 3.23 2833 1076 3.46 3040 1117 3.71 3252 1156 3.95 3467
4400 1000 3.14 2758 1044 3.38 2966 1085 3.62 3177 1126 3.87 3392 1165 4.11 3611
4500 1011 3.30 2892 1054 3.54 3104 1095 3.78 3319 1135 4.03 3537 1174 4.28 3759
4600 1022 3.45 3032 1064 3.70 3247 1105 3.95 3466 1145 4.20 3688 1183 4.46 3913
4700 1033 3.62 3176 1075 3.87 3395 1115 4.12 3618 1155 4.38 3843 1193 4.64 4072
4800 1044 3.79 3326 1085 4.04 3549 1126 4.30 3775 1164 4.56 4004 1202 4.83 4237
4900 1055 3.97 3482 1096 4.22 3708 1136 4.49 3938 1174 4.75 4171 1212 5.02 4406
5000 1066 4.15 3642 1107 4.41 3873 1146 4.68 4106 1184 4.95 4342 1221 5.22 4582
Bhp—Brake Horsepower Input to Fan
Watts — Input Watts to Motor