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Table 7 — Fan Performance — 581A210 High Heat Vertical Discharge Units*
LEGEND
*Motor drive ranges:
Low Range: 647-886 (208/230 and 460-v), 810-1072 (575-v)
High Range: 897-1139 (208/230 and 460-v), 873-1108 (575-v)
All other rpms require field-supplied drive.
Refer to page 23 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 4.25 (208/230 and 460-v), 3.45 (575-v)
High Range: 5.75
Table 8 — Fan Performance — 581A240 Low Heat Vertical Discharge Units*
LEGEND
*Motor drive ranges:
Low Range: 949-1206
High Range: 941-1176
All other rpms require field-supplied drive.
Refer to page 23 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp is:
Low Range: 5.75
High Range: 8.63
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
3500 470 611 0.70 556 791 0.91 630 967 1.11 697 1141 1.31 760 1314 1.51
4000 511 802 0.92 591 1001 1.15 661 1194 1.37 725 1383 1.59 784 1572 1.81
4500 553 1029 1.18 629 1248 1.44 695 1458 1.68 756 1663 1.91 812 1866 2.15
5000 597 1297 1.49 669 1534 1.76 732 1761 2.03 789 1982 2.28 843 2201 2.53
5500 641 1606 1.85 709 1862 2.14 770 2106 2.42 825 2343 2.70 876 2577 2.96
6000 686 1961 2.26 751 2234 2.57 809 2495 2.87 862 2749 3.16 911 2997 3.45
6500 732 2363 2.72 794 2653 3.05 849 2931 3.37 900 3201 3.68 948 3465 3.99
7000 779 2815 3.24 837 3122 3.59 891 3416 3.93 940 3702 4.26 986 3981 4.58
7500 826 3320 3.82 882 3642 4.19 933 3953 4.55 980 4254 4.89 1025 4549 5.23
8000 873 3879 4.46 926 4217 4.85 975 4542 5.22 1021 4860 5.59 1065 5169 5.95
8500 921 4495 5.17 972 4847 5.57 1019 5189 5.97 1063 5521 6.35 1105 5846 6.72
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
3500 818 1488 1.71 874 1661 1.91 927 1835 2.11 978 2008 2.31 1026 2182 2.51
4000 840 1760 2.02 893 1948 2.24 943 2136 2.46 992 2324 2.67 1039 2512 2.89
4500 865 2068 2.38 915 2270 2.61 964 2472 2.84 1011 2673 3.07 1056 2876 3.31
5000 893 2417 2.78 942 2632 3.03 988 2848 3.28 1033 3063 3.52 1076 3278 3.77
5500 925 2808 3.23 971 3037 3.49 1016 3266 3.76 1059 3494 4.02 1100 3721 4.28
6000 958 3243 3.73 1003 3486 4.01 1045 3728 4.29 1087 3970 4.57 1127 4210 4.84
6500 993 3725 4.28 1036 3982 4.58 1077 4238 4.87 1117 4492 5.17 1156 4745 5.46
7000 1029 4256 4.90 1071 4528 5.21 1111 4797 5.52 1150 5064 5.82 1187 5330 6.13
7500 1067 4838 5.56 1107 5124 5.89 1146 5407 6.22 1184 5688 6.54 1220 5967 6.86
8000 1106 5474 6.30 1145 5774 6.64 1182 6071 6.98 1219 6365 7.32 1254 6657 7.66
8500 1145 6165 7.09 1183 6479 7.45 1220 6790 7.81 1255 7098 8.16 1290 7403 8.51
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
5,000 590 1276 1.47 663 1516 1.74 727 1745 2.01 786 1968 2.26 840 2189 2.52
5,500 633 1579 1.82 703 1838 2.11 764 2084 2.40 820 2324 2.67 872 2560 2.94
6,000 677 1925 2.21 744 2203 2.53 803 2467 2.84 857 2723 3.13 907 2974 3.42
6,500 722 2317 2.67 786 2614 3.01 842 2896 3.33 894 3167 3.64 942 3434 3.95
7,000 767 2758 3.17 828 3073 3.53 883 3371 3.88 933 3660 4.21 979 3942 4.53
7,500 813 3250 3.74 871 3582 4.12 924 3897 4.48 972 4202 4.83 1017 4500 5.18
8,000 859 3795 4.36 915 4143 4.77 966 4475 5.15 1012 4797 5.52 1056 5110 5.88
8,500 906 4394 5.05 959 4759 5.47 1008 5107 5.87 1053 5445 6.26 1096 5774 6.64
9,000 952 5051 5.81 1004 5432 6.25 1051 5797 6.67 1095 6150 7.07 1136 6494 7.47
9,500 999 5767 6.63 1049 6163 7.09 1094 6544 7.53 1137 6913 7.95 1177 7272 8.36
10,000 1047 6544 7.53 1094 6956 8.00 1138 7352 8.46 1180 7736 8.90 1219 8111 9.33
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
5,000 891 2408 2.77 940 2625 3.02 987 2843 3.27 1032 3060 3.52 1076 3277 3.77
5,500 921 2792 3.21 968 3024 3.48 1014 3255 3.74 1057 3485 4.01 1099 3716 4.27
6,000 954 3221 3.70 999 3467 3.99 1042 3711 4.27 1084 3955 4.55 1125 4198 4.83
6,500 988 3696 4.25 1032 3956 4.55 1073 4214 4.85 1114 4470 5.14 1153 4726 5.44
7,000 1024 4219 4.85 1066 4493 5.17 1106 4764 5.48 1145 5034 5.79 1183 5303 6.10
7,500 1060 4792 5.51 1101 5080 5.84 1140 5365 6.17 1178 5649 6.50 1215 5930 6.82
8,000 1098 5417 6.23 1138 5719 6.58 1176 6018 6.92 1213 6315 7.26 1249 6610 7.60
8,500 1137 6096 7.01 1175 6413 7.38 1212 6726 7.74 1248 7036 8.09 1283 7344 8.45
9,000 1176 6831 7.86 1214 7163 8.24 1250 7490 8.61 1285 7814 8.99 1319 8135 9.36
9,500 1216 7624 8.77 1253 7970 9.17 1288 8312 9.56 1322 8649 9.95 1355 8984 10.33
10,000 1256 8478 9.75 1292 8838 10.16 1327 9193 10.57 1360 9545 10.98 1393 9893 11.38
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor