Bryant 581A/B Product Information Manual page 124

581B120 (10 TONS) — STANDARD MOTOR (BELT DRIVE)*
Airflow
0.2
(Cfm)
Rpm Bhp
3000 579 0.70
3100 592 0.76
3200 606 0.82
3300 620 0.88
3400 634 0.95
3500 648 1.03
3600 662 1.10
3700 676 1.19
3800 690 1.27
3900 705 1.36
4000 719 1.45
4100 734 1.55
4200 748 1.66
4300 763 1.76
4400 778 1.88
4500 792 1.99
4600 807 2.12
4700 822 2.25
4800 837 2.38
4900 852 2.52
5000 867 2.66
581B120 (10 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)
Airflow
1.2
(Cfm)
Rpm Bhp
3000 917 1.70
3100 925 1.79
3200 934 1.88
3300 943 1.98
3400 952 2.08
3500 961 2.18
3600 971 2.29
3700 981 2.40
3800 990 2.52
3900 1000 2.64
4000 1011 2.76
4100 1021 2.89
4200 1031 3.03
4300 1042 3.16
4400 1053 3.31
4500 1064 3.46
4600 1075 3.61
4700 — —
4800 — —
4900 — —
5000 — —
LEGEND
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
*Motor drive range: 860 to 1080 rpm. All other rpms require field-supplied
drive.
PERFORMANCE DATA (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
0.4
Watts Rpm Bhp Watts
651 660 0.89 832
706 672 0.96 893
764 684 1.03 957
825 696 1.10 1024
890 709 1.17 1095
958 721 1.25 1169
1030 734 1.34 1246
1106 747 1.42 1328
1185 760 1.52 1414
1269 773 1.61 1503
1357 786 1.71 1597
1449 799 1.82 1695
1545 813 1.93 1797
1646 826 2.04 1903
1751 840 2.16 2014
1860 853 2.28 2130
1975 867 2.41 2250
2094 881 2.55 2375
2218 895 2.69 2505
2347 909 2.83 2640
2482 923 2.98 2781
1.4
Watts Rpm Bhp Watts
1587 970 1.91 1784
1670 979 2.01 1872
1756 987 2.10 1963
1845 995 2.21 2057
1939 1004 2.31 2156
2035 1013 2.42 2258
2135 1022 2.53 2364
2240 1031 2.65 2473
2348 1040 2.77 2587
2459 1050 2.90 2705
2576 1059 3.03 2826
2697 1069 3.17 2953
2822 1079 3.31 3083
2951 1089 3.45 3218
3085 1100 3.60 3357
3224 — — —
3367 — — —
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External Static Pressure (in. wg)
0.6
Rpm Bhp Watts
732 1.09 1017
743 1.16 1083
754 1.24 1153
765 1.31 1225
777 1.40 1302
788 1.48 1381
800 1.57 1465
811 1.66 1552
823 1.76 1644
835 1.86 1739
848 1.97 1838
860 2.08 1942
872 2.20 2050
885 2.32 2162
898 2.44 2279
910 2.57 2401
923 2.71 2527
936 2.85 2658
949 3.00 2794
963 3.15 2935
976 3.30 3081
External Static Pressure (in. wg)
1.6
Rpm Bhp Watts
1021 2.13 1983
1029 2.23 2076
1037 2.33 2172
1045 2.44 2272
1053 2.55 2376
1062 2.66 2483
1070 2.78 2595
1079 2.91 2709
1088 3.03 2828
1097 3.17 2951
1106 3.30 3079
1116 3.44 3210
1125 3.59 3347
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See page 103 for general fan performance notes.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 3.70.
124
0.8
Rpm Bhp Watts Rpm
799 1.29 1204 860
808 1.37 1276 869
818 1.45 1351 878
829 1.53 1429 888
839 1.62 1511 897
850 1.71 1597 907
860 1.81 1686 917
871 1.91 1779 927
882 2.01 1876 938
894 2.12 1977 948
905 2.23 2082 959
917 2.35 2192 970
928 2.47 2305 981
940 2.60 2423 992
952 2.73 2546 1004
964 2.87 2673 1015
976 3.01 2805 1027
989 3.15 2942 1038
1001 3.31 3083 1050
1014 3.46 3230 —
1026 3.63 3383 —
1.8
Rpm Bhp Watts Rpm
1070 2.34 2185 1117
1077 2.45 2283 1123
1085 2.56 2384 1131
1092 2.67 2490 1138
1100 2.79 2599 1145
1108 2.91 2711 1153
1116 3.03 2827 1161
1125 3.16 2948 1169
1133 3.30 3073 1177
1142 3.43 3201 1186
1151 3.58 3334 —
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1.0
Bhp Watts
1.50 1395
1.58 1471
1.66 1552
1.75 1636
1.85 1723
1.95 1815
2.05 1909
2.15 2008
2.26 2111
2.38 2217
2.50 2328
2.62 2443
2.75 2562
2.88 2686
3.02 2814
3.16 2947
3.31 3085
3.46 3227
3.62 3375
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2.0
Bhp Watts
2.56 2389
2.67 2492
2.79 2599
2.91 2710
3.03 2824
3.15 2942
3.29 3063
3.42 3189
3.56 3319
3.70 3452
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