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110
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.
549B090 (7
1
/
2
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
2250 465 0.43 402 555 0.64 596 629 0.86 802 694 1.10 1021 753 1.34 1252
2300 471 0.45 421 560 0.66 618 634 0.89 828 699 1.13 1050 757 1.38 1283
2400 483 0.49 461 571 0.71 665 644 0.94 881 708 1.19 1109 766 1.45 1348
2500 495 0.54 503 581 0.77 715 654 1.01 937 717 1.26 1171 775 1.52 1416
2550 501 0.56 526 587 0.79 740 659 1.04 967 722 1.29 1204 779 1.56 1452
2600 507 0.59 549 592 0.82 767 664 1.07 996 727 1.33 1237 784 1.60 1488
2700 519 0.64 597 603 0.88 823 674 1.14 1059 737 1.40 1306 793 1.68 1563
2800 532 0.70 649 614 0.95 882 684 1.21 1125 746 1.48 1378 803 1.76 1641
2900 544 0.75 703 625 1.01 944 695 1.28 1194 756 1.56 1453 812 1.85 1723
3000 557 0.82 761 637 1.08 1009 705 1.36 1266 766 1.64 1533 822 1.94 1808
3100 570 0.88 823 648 1.16 1079 716 1.44 1342 776 1.73 1615 831 2.03 1897
3200 583 0.95 888 660 1.23 1151 727 1.53 1422 787 1.82 1702 841 2.13 1991
3300 596 1.03 957 672 1.32 1228 738 1.61 1506 797 1.92 1792 851 2.24 2088
3400 609 1.10 1030 684 1.40 1308 749 1.71 1593 808 2.02 1887 861 2.35 2188
3500 622 1.19 1106 696 1.49 1392 760 1.81 1685 818 2.13 1985 872 2.46 2294
3600 635 1.27 1187 708 1.59 1481 771 1.91 1781 829 2.24 2088 882 2.58 2403
3700 649 1.36 1272 720 1.69 1573 783 2.02 1881 840 2.35 2195 892 2.70 2517
3750 655 1.41 1316 726 1.74 1621 789 2.07 1932 845 2.41 2250 897 2.76 2575
549B090 (7
1
/
2
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
2250 806 1.60 1494 856 1.87 1747 903 2.15 2009 947 2.45 2282 988 2.75 2564
2300 811 1.64 1528 860 1.91 1784 907 2.20 2048 950 2.49 2323 992 2.80 2607
2400 819 1.71 1599 868 1.99 1859 915 2.28 2129 958 2.58 2410 1000 2.89 2698
2500 828 1.79 1672 877 2.08 1938 923 2.37 2214 966 2.68 2499 1008 3.00 2793
2550 832 1.83 1710 881 2.12 1979 927 2.42 2258 971 2.73 2545 1012 3.05 2842
2600 836 1.88 1749 885 2.17 2021 931 2.47 2302 975 2.78 2592 1016 3.10 2891
2700 845 1.96 1830 894 2.26 2107 940 2.57 2394 983 2.88 2689 1024 3.21 2993
2800 854 2.05 1914 903 2.36 2197 948 2.67 2488 991 2.99 2790 1032 3.32 3099
2900 864 2.15 2002 912 2.46 2290 957 2.77 2587 1000 3.10 2894 1041 3.44 3209
3000 873 2.24 2093 921 2.56 2388 966 2.89 2691 1008 3.22 3003 1049 3.56 3323
3100 882 2.35 2189 930 2.67 2489 975 3.00 2798 1017 3.34 3115 1057 3.69 3441
3200 892 2.45 2288 939 2.78 2595 984 3.12 2909 1026 3.47 3233 1066 3.82 3564
3300 901 2.56 2391 948 2.90 2704 993 3.24 3024 1035 3.60 3353 1075 3.96 3690
3400 911 2.68 2499 958 3.02 2817 1002 3.37 3144 1044 3.73 3479 1084 4.10 3821
3500 921 2.80 2610 967 3.15 2935 1011 3.50 3268 1053 3.87 3608 — — —
3600 931 2.92 2726 977 3.28 3057 1021 3.64 3396 1062 4.01 3743 — — —
3700 941 3.05 2847 987 3.41 3184 1030 3.78 3529 1071 4.16 3882 — — —
3750 946 3.12 2908 992 3.48 3249 1035 3.86 3597 — — ————
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
549B, 549C