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PERFORMANCE DATA — 549B, 549C (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 730 to 950 rpm. All other rpms require field-
supplied drive.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 2.90.
3. See page 103 for General Fan Performance Notes.
549B090 (7
1
/
2
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
2250 511 0.53 492 591 0.73 680 660 0.95 885 722 1.19 1106 779 1.44 1342
2300 519 0.56 518 597 0.76 709 666 0.98 916 727 1.22 1140 784 1.48 1378
2400 534 0.61 571 611 0.82 768 678 1.05 982 739 1.30 1210 795 1.56 1453
2500 550 0.67 629 624 0.89 832 690 1.13 1051 750 1.38 1285 805 1.64 1533
2550 558 0.71 660 631 0.93 866 697 1.17 1088 756 1.42 1324 811 1.69 1574
2600 565 0.74 691 638 0.97 901 703 1.21 1125 762 1.46 1365 816 1.73 1617
2700 581 0.81 758 652 1.04 974 716 1.29 1204 774 1.55 1449 828 1.83 1707
2800 597 0.89 829 667 1.13 1051 729 1.38 1287 786 1.65 1538 839 1.93 1801
2900 613 0.97 905 681 1.22 1133 742 1.48 1376 799 1.75 1632 851 2.04 1900
3000 630 1.06 985 696 1.31 1220 756 1.58 1469 811 1.86 1731 863 2.15 2004
3100 646 1.15 1071 711 1.41 1313 770 1.68 1568 824 1.97 1835 875 2.27 2114
3200 663 1.25 1162 726 1.51 1411 784 1.79 1672 837 2.09 1944 888 2.39 2229
3300 679 1.35 1259 741 1.62 1514 798 1.91 1781 851 2.21 2060 900 2.52 2351
3400 696 1.46 1361 756 1.74 1623 812 2.03 1896 864 2.34 2181 913 2.66 2478
3500 713 1.58 1469 772 1.86 1737 827 2.16 2017 878 2.48 2308 926 2.80 2610
3600 729 1.70 1583 787 1.99 1857 841 2.30 2144 892 2.62 2441 — — —
3700 746 1.83 1703 803 2.13 1985 856 2.44 2277 906 2.77 2580 — — —
3750 755 1.89 1766 811 2.20 2051 864 2.52 2346 913 2.84 2653 — — —
549B090 (7
1
/
2
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
2250 832 1.71 1592 882 1.99 1855 928 2.29 2131 973 2.59 2420 ———
2300 837 1.75 1630 886 2.03 1896 933 2.33 2174 977 2.64 2463 ———
2400 847 1.83 1710 896 2.12 1980 942 2.43 2262 986 2.74 2556 ———
2500 857 1.92 1794 905 2.22 2069 951 2.52 2355 995 2.84 2653 ———
2550 862 1.97 1838 910 2.27 2114 956 2.58 2403 999 2.90 2704 ———
2600 867 2.02 1884 915 2.32 2162 961 2.63 2453 — — ————
2700 878 2.12 1978 926 2.42 2261 971 2.74 2556 — — ————
2800 889 2.23 2077 936 2.54 2365 981 2.86 2664 — — ————
2900 900 2.34 2181 947 2.65 2474 — — ——— ————
3000 912 2.46 2290 958 2.78 2588 — — — ——————
3100 923 2.58 2406 969 2.90 2708 — — — ——————
3200 935 2.71 2526 ————————————
3300 947 2.84 2652 ————————————
3400 ———————————————
3500 ———————————————
3600 ———————————————
3700 ———————————————
3750 ———————————————
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
549B, 549C