Product data

63
FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)
LEGEND
*Motor drive range: 685 to 935 rpm. All other rpms require field-
supplied drive.
Refer to page 65 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 usable watts input is 2120 and maximum continuous bhp
is 2.40.
50TFQ009 (8
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
2550 501 0.57 577 587 0.79 747 659 1.05 956 722 1.29 1156 780 1.55 1378
2660 507 0.59 592592 0.82 771 663 1.08 981 727 1.32 1182 784 1.58 1404
2700 520 0.65 638 604 0.89 827 672 1.14 1031 737 1.40 1250 793 1.66 1473
2800 533 0.71 684 615 0.95 875 683 1.20 1081 747 1.49 1327 802 1.75 1552
2900 546 0.77 731 626 1.02 932 693 1.27 1140 756 1.57 1396 813 1.84 1630
3000 559 0.83 779 6371.09989 704 1.35 1207 765 1.66 1473 823 1.94 1718
3100 572 0.90835 648 1.17 1056 715 1.43 1275 775 1.74 1543 832 2.05 1814
3200 585 0.96883 660 1.24 1114 727 1.52 1353 785 1.83 1321 841 2.15 1901
3300 5981.03940 671 1.32 1182 739 1.62 1439 795 1.91 1691 851 2.26 1997
3400 610 1.10 998 682 1.41 1258 750 1.72 1526 806 2.01 1779 860 2.36 2084
3500 623 1.17 1056 694 1.50 1335 761 1.82 1613 817 2.11 1866
870 2.47 2180
3600 636 1.25 1123 707 1.60 1422 772 1.93 1709 828 2.23 1971
880 2.57 2266
3700 649 1.33 1190 720 1.71 1517 783 2.03 1796 840 2.35 2076
890 2.69 2369
3750 655 1.37 1224 727 1.77 1569 789 2.09 1849
846 2.42 2136 896 2.75 2420
3800 661 1.41 1258 733 1.82 1613 795 2.15 1901
852 2.48 2188 901 2.80 2462
3900 674 1.49 1327 746 1.93 1709 806 2.26 1997
863 2.61 2300 912 2.93 2571
4000 687 1.57 1396 759 2.05 1814 817 2.38 2102
874 2.75 2420 923 3.08 2694
4100 699 1.60 1473 772 2.17 1919
828 2.50 2206 885 2.88 2529 935 3.23 2815
4200 712 1.75 1552 785 2.30 2032
840 2.64 2326 897 3.03 2653 947 3.39 2940
4250 719 1.80 1595 792 2.37 2093
846 2.71 2386 903 3.10 2710
50TFQ009 (8
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
2550 836 1.83 1621 887 2.13 1884
931 2.45 2162 964 2.77 2436 986 3.11 2718
2660 839 1.87 1656 891 2.17 1919
936 2.49 2197 973 2.82 2479 999 3.16 2759
2700 846 1.95 1726 898 2.26 1997
946 2.58 2275 987 2.91 2554 1019 3.26 2839
2800 855 2.04 1805 906 2.35 2076
954 2.67 2352 997 3.01 2637 1034 3.36 2917
2900 863 2.13 1884
913 2.44 2154 961 2.77 2436 1006 3.12 2727
3000 872 2.22 1962
921 2.54 2240 969 2.88 2529 1014 3.22 2807
3100 882 2.33 2058
930 2.65 2335 976 2.99 2620 1021 3.34 2902
3200
892 2.45 2162 939 2.76 2428 984 3.10 2710
3300
902 2.57 2266 948 2.88 2529 993 3.21 2799
3400
912 2.69 2369 958 3.01 2637 1002 3.34 2902
3500
921 2.82 2479 968 3.15 2751
3600
930 2.95 2587 978 3.29 2862
3700
940 3.07 2686
3750
945 3.14 2743
3800
949 3.20 2781
3900
959 3.33 2894
4000 —— —— —— —— ——
4100 —— —— —— —— ——
4200 —— —— —— —— ——
4250 —— —— —— —— ——
Bhp Brake Horsepower Input to Fan
Watts Input Watts to Motor
50TFQ004-01250TFQ004-012