38
FAN PERFORMANCE BELT DRIVE(cont.)
TABLE 29 – 581J*09----3 PHASE----8.5 TON HORIZONTAL SUPPLY
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2250 520 0.47 609 0.64 687 0.81 757 0.99 821 1.16 881 1.35 937 1.53 990 1.72 1040 1.91 1088 2.11
2438 547 0.57 633 0.75 708 0.94 776 1.12 839 1.31 897 1.51 952 1.70 1004 1.90 1054 2.11 1101 2.31
2625 575 0.68 657 0.88 730 1.07 796 1.27 857 1.48 915 1.68 968 1.89 1020 2.10 1068 2.32 1115 2.53
2813 604 0.81 683 1.02 753 1.23 817 1.44 877 1.65 933 1.87 986 2.09 1036 2.32 1084 2.54 1130 2.77
3000 634 0.95 709 1.17 777 1.40 839 1.62 897 1.85 952 2.08 1004 2.31 1053 2.55 1100 2.79 1145 3.03
3188 664 1.11 736 1.35 801 1.58 862 1.82 919 2.06 972 2.30 1023 2.55 1071 2.80 1118 3.05 1162 3.30
3375 694 1.29 763 1.54 826 1.79 885 2.04 941 2.29 993 2.55 1043 2.81 1090 3.07 1136 3.33 1179 3.59
3563 725 1.49 791 1.75 852 2.01 909 2.28 963 2.54 1014 2.81 1063 3.08 1110 3.36 1154 3.63 1198 3.91
3750 756 1.71 819 1.98 879 2.26 934 2.53 987 2.81 1037 3.09 1084 3.38 1130 3.66 1174 3.95 1216 4.24
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field---supplied drive is required.
* Standard static 518 --- 733 RPM, 1.7 BHP max
* Medium static 690 --- 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
TABLE 30 – 581J*09----3 PHASE----8.5 TON VERTICAL SUPPLY
CFM
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2250 505 0.39 595 0.54 676 0.69 750 0.86 819 1.03 884 1.21 945 1.40 1003 1.60 1059 1.80 1112 2.01
2438 532 0.47 617 0.63 694 0.79 766 0.97 833 1.15 896 1.34 955 1.54 1012 1.74 1066 1.95 1118 2.17
2625 559 0.56 640 0.73 714 0.90 783 1.08 848 1.28 909 1.47 967 1.68 1022 1.89 1075 2.11 1126 2.34
2813 588 0.67 664 0.84 735 1.03 801 1.22 864 1.42 923 1.62 980 1.84 1034 2.06 1086 2.29 1136 2.52
3000 616 0.79 689 0.97 757 1.16 821 1.36 882 1.57 939 1.79 994 2.01 1047 2.24 1098 2.47 1147 2.71
3188 646 0.92 715 1.11 780 1.31 842 1.52 901 1.74 956 1.97 1010 2.20 1061 2.43 1111 2.68 1159 2.93
3375 675 1.06 742 1.27 804 1.48 864 1.70 920 1.93 975 2.16 1027 2.40 1077 2.65 1125 2.90 1172 3.15
3563 705 1.23 769 1.44 829 1.66 886 1.89 941 2.13 994 2.37 1044 2.62 1093 2.87 1141 3.13 1186 3.40
3750 736 1.41 797 1.63 855 1.86 910 2.10 963 2.35 1014 2.60 1063 2.86 1111 3.12 1157 3.39 1202 3.66
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field---supplied drive is required.
* Standard static 518 --- 733 RPM, 1.7 BHP max
* Medium static 690 --- 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
581J
