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PERFORMANCE DATA (cont)
FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 860 to 1080 rpm. All other rpms require field-
supplied drive.
Refer to page 51 for general Fan Performance notes.
NOTES:
1.
Boldface
indicates field-supplied drive is required.
2. indicates field-supplied motor and drive are required.
3. Maximum continuous bhp is 3.7 and the maximum continuous
watts are 3313.
548F102 (8
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
2550 559 0.72 692 634 0.97 891 700 1.21 1089 759 1.48 1318 814 1.74 1543
2600 567 0.76 716 641 1.00 916 706 1.25 1123 764 1.52 1353 819 1.79 1587
2700 582 0.83 779 655 1.08 981 719 1.34 1199 776 1.61 1430 831 1.89 1674
2800 598 0.90 835 670 1.17 1056 732 1.43 1275 789 1.71 1517 842 2.00 1770
2900 614 0.98 899 684 1.25 1123 745 1.53 1361 802 1.81 1604 854 2.11 1866
3000 630 1.07 973 690 1.35 1207 759 1.63 1147 816 1.92 1700
866 2.23 1971
3100 646 1.16 1047 714 1.45 1292 773 1.74 1543 828 2.04 1805
878 2.35 2076
3200 662 1.26 1131 729 1.55 1378 787 1.86 1648 841 2.16 1910
891 2.48 2188
3300 679 1.36 1216 744 1.66 1473 801 1.98 1753 854 2.29 2023
904 2.61 2300
3400 695 1.47 1310 759 1.78 1578 816 2.10 1958
867 2.42 2136 917 2.75 2420
3500 712 1.59 1413 774 1.90 1683 830 2.23 1971
881 2.56 2257 930 2.90 2546
3600 729 1.71 1517 790 2.03 1796 845 2.37 2093
895 2.71 2386 943 3.05 2670
3700 745 1.84 1630 805 2.17 1919 860 2.52 2223
909 2.87 2521 956 3.22 2807
3750 754 1.91 1691 813 2.24 1980
868 2.59 2283 917 2.95 2587 963 3.30 2870
3800 762 1.98 1753 821 2.31 2041
875 2.66 2343 924 3.03 2653 970 3.38 2933
3900 779 2.12 1875 836 2.46 2171
890 2.82 2479 938 3.19 2783 981 3.65 3209
4000 796 2.27 2006 852 2.61 2300
905 2.98 2612 953 3.37 2925
996 3.85 3390
4100 813 2.42 2136
868 2.78 2445 920 3.15 2751
974 3.74 3294 ———
4200 830 2.59 2283
884 2.95 2587 935 3.33 2894
990 3.96 3482 ———
4250 839 2.68 2360
890 3.04 2661
965 3.88 3412 ——————
548F102 (8
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
2550
864 2.01 1779 915 2.34 2067 968 2.81 2479 991 3.02 2654 1012 3.21 2827
2600
869 2.06 1823 918 2.37 2093 973 2.81 2487 996 3.02 2654 1017 3.21 2827
2700
880 2.17 1919 927 2.47 2180 976 2.84 2495 999 3.05 2682 1021 3.25 2857
2800
892 2.29 2023 938 2.58 2275 983 2.92 2562 1006 3.13 2758 1028 3.34 2938
2900
903 2.42 2136 949 2.71 2386 993 3.03 2653 1017 3.25 2862 1038 3.46 3048
3000
915 2.54 2240 961 2.85 2504 1003 3.17 2767 1027 3.40 2994 1049 3.62 3189
3100
926 2.67 2352 972 3.00 2629 1016 3.32 2886 1040 3.56 3136
1062 3.80 3340
3200
938 2.81 2470 983 3.14 2743 1026 3.47 3002
1050 3.72 3277 1073 3.97 3491
3300
950 2.95 2587 995 3.30 2870 1022 3.58 3146
1046 3.84 3377 1069 4.09 3597
3400
963 3.10 2710 1007 3.45 2987
1034 3.74 3289 1059 4.01 3530 ———
3500
976 3.25 2831 1007 3.56 3137
1034 3.85 3399 1058 4.15 3648 ———
3600
988 3.41 2956
1019 3.74 3292 1047 4.05 3566 ——————
3700
992 3.59 3161
1023 3.94 3467 —————————
3750
999 3.68 3240
1030 4.04 3554 —————————
3800
1006 3.77 3318 1038 4.14 3640 —————————
3900
1017 4.07 3580 ————————————
4000
———————————————
4100
———————————————
4200
———————————————
4250
———————————————
Bhp —
Brake Horsepower Input to Fan
Watts —
Input Watts to Motor
50TFQ004-012
548F036-120