Bryant 581A/B - Manual (Page 113)

113
PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 830 to 1130 rpm. All other rpms require field-
supplied drive.
Refer to page 103 for general Fan Performance Data notes.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 5.25.
581B120 (10 TONS) — HIGH-STATIC 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 616 0.79 732 689 0.97 904 757 1.16 1083 821 1.36 1271 882 1.57 1465
3100 632 0.85 796 703 1.04 972 769 1.24 1157 832 1.45 1349 892 1.66 1548
3200 648 0.93 864 717 1.12 1045 782 1.32 1235 843 1.53 1431 902 1.75 1635
3300 663 1.00 936 731 1.20 1122 795 1.41 1316 855 1.63 1517 912 1.85 1725
3400 679 1.09 1012 745 1.29 1203 808 1.50 1402 867 1.72 1608 923 1.95 1820
3500 695 1.17 1092 760 1.38 1288 821 1.60 1492 879 1.83 1703 934 2.06 1920
3600 711 1.26 1177 774 1.48 1379 834 1.70 1587 891 1.93 1802 945 2.17 2024
3700 728 1.36 1266 789 1.58 1473 848 1.81 1686 904 2.04 1906 957 2.29 2132
3800 744 1.46 1361 804 1.69 1572 861 1.92 1790 916 2.16 2015 969 2.41 2246
3900 760 1.57 1460 819 1.80 1676 875 2.04 1899 929 2.28 2128 981 2.53 2364
4000 777 1.68 1563 834 1.91 1785 889 2.16 2012 942 2.41 2247 993 2.67 2487
4100 793 1.79 1672 850 2.04 1899 904 2.29 2132 956 2.54 2371 1006 2.80 2615
4200 810 1.92 1786 865 2.16 2018 918 2.42 2255 969 2.68 2499 1018 2.95 2748
4300 826 2.04 1906 880 2.30 2142 932 2.56 2385 983 2.82 2633 1031 3.10 2888
4400 843 2.18 2031 896 2.44 2272 947 2.70 2520 996 2.97 2773 1044 3.25 3032
4500 860 2.32 2161 912 2.58 2408 962 2.85 2660 1010 3.13 2918 1057 3.41 3182
4600 876 2.46 2297 927 2.73 2549 977 3.01 2807 1024 3.29 3070 1070 3.58 3338
4700 893 2.62 2439 943 2.89 2696 992 3.17 2958 1038 3.46 3226 1084 3.75 3500
4800 910 2.77 2587 959 3.06 2849 1007 3.34 3116 1053 3.63 3390 1098 3.93 3668
4900 927 2.94 2741 975 3.23 3008 1022 3.52 3280 1067 3.82 3558 1111 4.12 3841
5000 944 3.11 2901 991 3.40 3173 1037 3.70 3451 1082 4.00 3733 1125 4.31 4021
581B120 (10 TONS) — HIGH-STATIC 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 939 1.79 1667 994 2.01 1874 1047 2.24 2087 1098 2.47 2307 1147 2.71 2532
3100 948 1.88 1753 1002 2.11 1965 1054 2.34 2183 1105 2.58 2406 1153 2.83 2635
3200 957 1.98 1844 1011 2.21 2060 1062 2.45 2283 1112 2.69 2510 1160 2.94 2743
3300 967 2.08 1939 1020 2.32 2160 1070 2.56 2386 1119 2.81 2618 1167 3.06 2855
3400 977 2.19 2039 1029 2.43 2264 1079 2.67 2494 1127 2.93 2730 1174 3.19 2971
3500 987 2.30 2143 1038 2.54 2372 1088 2.80 2607 1135 3.05 2847 1181 3.32 3092
3600 998 2.41 2251 1048 2.66 2485 1097 2.92 2724 1144 3.18 2968 1189 3.45 3218
3700 1008 2.54 2364 1058 2.79 2602 1106 3.05 2846 1152 3.32 3094 1198 3.59 3348
3800 1019 2.66 2482 1068 2.92 2725 1116 3.19 2972 1162 3.46 3226 1206 3.74 3484
3900 1031 2.79 2605 1079 3.06 2852 1126 3.33 3104 1171 3.61 3362 1215 3.89 3624
4000 1042 2.93 2733 1090 3.20 2984 1136 3.48 3241 1180 3.76 3503 1224 4.04 3770
4100 1054 3.07 2866 1101 3.35 3122 1146 3.63 3383 1190 3.91 3649 1233 4.20 3921
4200 1066 3.22 3004 1112 3.50 3264 1157 3.79 3530 1200 4.08 3801 1243 4.37 4077
4300 1078 3.38 3148 1123 3.66 3413 1167 3.95 3683 1210 4.24 3958 1252 4.54 4238
4400 1090 3.54 3297 1135 3.82 3566 1179 4.12 3841 1221 4.42 4121 1262 4.72 4405
4500 1103 3.70 3451 1147 4.00 3726 1190 4.29 4005 1232 4.60 4289 1273 4.91 4578
4600 1115 3.87 3612 1159 4.17 3891 1201 4.48 4175 1243 4.79 4464 1283 5.10 4757
4700 1128 4.05 3778 1171 4.36 4062 1213 4.67 4350 1254 4.98 4644 — — —
4800 1141 4.24 3951 1183 4.55 4239 1225 4.86 4532 1265 5.18 4830 — — —
4900 1154 4.43 4130 1196 4.74 4422 1237 5.06 4720 — — — — — —
5000 1167 4.63 4314 1209 4.95 4611 — — — — — — — — —
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
5
81B0
36-
15
0