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PERFORMANCE DATA — 549B, 549C (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 860 to 1080 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 3.70.
3. See page 103 for General Fan Performance Notes.
549B120 (10 TONS) STANDARD 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 523 0.58 541 592 0.73 680 657 0.88 825 718 1.05 977 775 1.22 1135
3100 536 0.63 587 603 0.78 730 666 0.94 879 726 1.11 1035 783 1.28 1196
3200 549 0.68 637 614 0.84 783 676 1.00 936 735 1.17 1096 790 1.35 1260
3300 562 0.74 689 626 0.90 839 686 1.07 996 743 1.24 1159 798 1.42 1328
3400 575 0.80 744 637 0.96 898 696 1.14 1059 752 1.31 1226 806 1.50 1398
3500 588 0.86 802 649 1.03 961 707 1.21 1125 762 1.39 1296 815 1.58 1472
3600 601 0.93 864 661 1.10 1026 717 1.28 1194 771 1.47 1369 823 1.66 1548
3700 614 1.00 929 673 1.17 1095 728 1.36 1267 781 1.55 1445 832 1.75 1629
3800 628 1.07 997 685 1.25 1167 739 1.44 1343 791 1.64 1525 841 1.84 1712
3900 641 1.15 1069 697 1.33 1243 750 1.53 1423 801 1.72 1608 850 1.93 1799
4000 655 1.23 1144 709 1.42 1322 761 1.61 1506 812 1.82 1695 860 2.03 1890
4100 668 1.31 1223 722 1.51 1405 773 1.71 1593 822 1.92 1786 870 2.13 1984
4200 682 1.40 1305 734 1.60 1492 784 1.80 1683 833 2.02 1880 880 2.23 2082
4300 696 1.49 1392 747 1.70 1582 796 1.91 1777 844 2.12 1979 890 2.34 2184
4400 710 1.59 1482 760 1.80 1677 808 2.01 1876 855 2.23 2081 900 2.46 2290
4500 723 1.69 1577 773 1.90 1775 820 2.12 1978 866 2.35 2187 910 2.57 2400
4600 737 1.80 1675 785 2.01 1877 832 2.24 2085 877 2.46 2297 921 2.70 2514
4700 751 1.91 1778 798 2.13 1984 844 2.35 2195 889 2.59 2412 932 2.82 2633
4800 765 2.02 1885 812 2.25 2095 856 2.48 2310 900 2.71 2531 942 2.95 2756
4900 779 2.14 1996 825 2.37 2210 869 2.61 2430 912 2.85 2654 953 3.09 2883
5000 793 2.26 2112 838 2.50 2330 881 2.74 2554 923 2.98 2782 965 3.23 3014
549B120 (10 TONS) STANDARD 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 830 1.39 1298 883 1.57 1466 934 1.76 1638 982 1.95 1815 1029 2.14 1996
3100 837 1.46 1363 889 1.65 1534 938 1.83 1710 986 2.03 1891 1033 2.23 2075
3200 843 1.53 1431 894 1.72 1606 944 1.91 1785 991 2.11 1969 1037 2.31 2157
3300 850 1.61 1502 901 1.80 1680 949 2.00 1863 996 2.20 2051 1041 2.40 2242
3400 858 1.69 1576 907 1.88 1758 955 2.09 1944 1001 2.29 2135 1046 2.50 2331
3500 865 1.77 1653 914 1.97 1838 961 2.18 2029 1007 2.38 2223 1051 2.60 2422
3600 873 1.86 1733 921 2.06 1922 967 2.27 2116 1012 2.48 2314 1056 2.70 2516
3700 881 1.95 1816 928 2.16 2010 974 2.37 2207 1019 2.58 2409 1062 2.80 2615
3800 889 2.04 1904 936 2.25 2100 981 2.47 2302 1025 2.69 2507 1068 2.91 2716
3900 898 2.14 1995 944 2.35 2195 988 2.57 2399 1032 2.80 2608 1074 3.03 2821
4000 907 2.24 2089 952 2.46 2293 996 2.68 2501 1038 2.91 2713 1080 3.14 2930
4100 916 2.35 2187 960 2.57 2395 1004 2.80 2607 1046 3.03 2822 1087 3.26 3042
4200 925 2.45 2289 969 2.68 2500 1011 2.91 2716 1053 3.15 2935 1094 3.39 3159
4300 934 2.57 2395 978 2.80 2610 1020 3.03 2828 1061 3.27 3052 1101 3.52 3279
4400 944 2.69 2504 986 2.92 2723 1028 3.16 2946 1068 3.40 3173 1108 3.65 3403
4500 954 2.81 2618 996 3.05 2840 1037 3.29 3067 1076 3.54 3297 — — —
4600 963 2.93 2736 1005 3.18 2962 1045 3.42 3192 1085 3.67 3426 ———
4700 974 3.07 2858 1014 3.31 3088 1054 3.56 3322 — — ————
4800 984 3.20 2985 1024 3.45 3219 — — —— — ————
4900 994 3.34 3116 1034 3.60 3353 — — —— — ————
5000 1005 3.49 3251 ————————————
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
549B, 549C