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PERFORMANCE DATA — 548F (cont)
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 860 to 1080 rpm. All other rpms require field-
supplied drive.
Refer to page 27 General Fan Performance Notes.
NOTES:
1. Boldface indicates field-supplied drive is required.
2. Maximum continuous bhp is 3.70.
548F090 (7
1
/
2
TONS) — HIGH-STATIC MOTOR AND 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 0.49 459 555 0.67 621 629 0.84 786 694 1.03 959 752 1.22 1138
2300 471 0.52 483 560 0.69 648 634 0.88 817 698 1.06 992 757 1.26 1174
2400 483 0.57 534 570 0.76 705 644 0.94 880 708 1.14 1061 765 1.34 1248
2500 495 0.63 588 581 0.82 767 653 1.02 948 717 1.22 1134 774 1.42 1327
2550 501 0.66 617 586 0.86 799 658 1.05 983 722 1.26 1173 779 1.47 1368
2600 507 0.69 647 592 0.89 832 663 1.09 1020 727 1.30 1212 784 1.51 1410
2700 519 0.76 709 603 0.97 902 674 1.18 1096 736 1.39 1294 793 1.61 1498
2800 532 0.83 775 614 1.05 976 684 1.26 1176 746 1.48 1381 802 1.71 1590
2900 544 0.91 846 625 1.13 1054 694 1.35 1261 756 1.58 1472 812 1.81 1687
3000 557 0.99 922 637 1.22 1137 705 1.45 1351 766 1.68 1568 821 1.92 1789
3100 570 1.07 1002 648 1.31 1224 716 1.55 1445 776 1.79 1669 831 2.03 1896
3200 582 1.17 1087 660 1.41 1317 727 1.66 1545 786 1.90 1774 841 2.15 2008
3300 595 1.26 1177 671 1.52 1414 738 1.77 1649 797 2.02 1885 851 2.28 2125
3400 608 1.36 1271 683 1.63 1517 749 1.89 1759 807 2.15 2002 861 2.41 2248
3500 622 1.47 1372 695 1.74 1625 760 2.01 1874 818 2.28 2124 871 2.55 2376
3600 635 1.58 1477 707 1.86 1738 771 2.14 1995 829 2.41 2252 881 2.69 2510
3700 648 1.70 1588 720 1.99 1857 783 2.27 2121 839 2.56 2385 892 2.84 2650
3750 655 1.77 1646 726 2.06 1918 788 2.34 2187 845 2.63 2454 897 2.92 2722
548F090 (7
1
/
2
TONS) — HIGH-STATIC MOTOR AND 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 1.42 1326 855 1.63 1521 902 1.85 1723 946 2.07 1932 988 2.30 2148
2300 810 1.46 1363 859 1.67 1561 906 1.89 1765 950 2.12 1976 991 2.35 2194
2400 818 1.55 1443 868 1.76 1644 914 1.99 1853 958 2.22 2068 999 2.46 2290
2500 827 1.64 1527 876 1.86 1733 922 2.09 1946 966 2.32 2165 1007 2.56 2391
2550 832 1.68 1570 880 1.91 1779 926 2.14 1994 970 2.38 2215 1011 2.62 2444
2600 836 1.73 1615 885 1.96 1826 931 2.19 2043 974 2.43 2267 1015 2.68 2497
2700 845 1.83 1708 893 2.06 1923 939 2.30 2146 982 2.55 2374 1023 2.80 2609
2800 854 1.94 1805 902 2.17 2026 948 2.42 2253 991 2.67 2486 1031 2.92 2725
2900 863 2.05 1907 911 2.29 2134 956 2.54 2366 999 2.79 2603 1040 3.05 2847
3000 872 2.16 2015 920 2.41 2246 965 2.66 2483 1008 2.92 2726 1048 3.19 2974
3100 882 2.28 2127 929 2.54 2365 974 2.80 2607 1016 3.06 2854 1057 3.33 3107
3200 891 2.41 2245 938 2.67 2488 983 2.93 2735 1025 3.20 2988 1065 3.48 3246
3300 901 2.54 2369 948 2.81 2617 992 3.08 2869 1034 3.35 3127 1074 3.64 3390
3400 911 2.68 2497 957 2.95 2751 1001 3.23 3010 1043 3.51 3273 — — —
3500 921 2.82 2632 967 3.10 2891 1011 3.38 3155 1052 3.67 3424 — — —
3600 930 2.97 2772 977 3.26 3038 1020 3.55 3307 — — — — — —
3700 941 3.13 2918 986 3.42 3190 1030 3.72 3465 — — — — — —
3750 946 3.21 2994 991 3.50 3268 — — — — — — — — —
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor
548F