Bryant 548D - Manual (Page 27)

— 27 —
Table 13 — Fan Performance 548D120 — Horizontal Discharge Units
LEGEND
NOTES:
1. Boldface indicates field-supplied or alternate (as appropriate)
drive is required. (See Note 7.)
2. indicates alternate motor and drive are required.
3. indicates field-supplied motor and drive are required.
4. Maximum usable watts input is 2120 with standard motor and
2615 with alternate motor. Maximum continuous bhp is 2.40 with
standard motor and 2.90 with alternate motor. Extensive motor
and electrical testing on these units ensures that the full range of
the motor can be utilized with confidence. Using your fan motors
up to the wattage ratings shown will not result in nuisance tripping
or premature motor failure. Unit warranty will not be affected.
5. Values include losses for filters, unit casing, and wet coils.
6. Use of a field-supplied motor may affect wire sizing. Contact your
representative to verify.
7. Standard motor drive range: 685 to 935 rpm. Alternate motor drive
range: 835 to 1085 rpm. All other rpms require field-supplied drive.
8. Interpolation is permissible. Do not extrapolate.
STANDARD AND ALTERNATE MOTORS (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
3000 484 0.55 562 560 0.70 677 631 0.87 810 690 1.03 940 747 1.20 1081
3100 495 0.61 607 570 0.76 723 638 0.92 851 699 1.10 998 755 1.27 1140
3200 505 0.66 646 579 0.81 763 646 0.98 899 708 1.16 1047 761 1.34 1199
3300 516 0.72 692 589 0.87 810 655 1.05 956 717 1.23 1106 767 1.40 1250
3400 527 0.78 739 599 0.93 859 664 1.11 1006 724 1.30 1165 775 1.48 1318
3500 537 0.85 795 609 0.99 907 672 1.18 1064 731 1.36 1216 784 1.56 1387
3600 548 0.92 851 619 1.05 956 680 1.24 1114 738 1.43 1275 794 1.64 1456
3700 560 1.00 916 629 1.12 1014 688 1.31 1173 747 1.51 1344 802 1.73 1534
3800 571 1.08 981 639 1.19 1072 698 1.39 1241 756 1.60 1422 810 1.81 1604
3900 582 1.16 1047 649 1.27 1140 708 1.47 1310 764 1.69 1499 816 1.89 1674
4000 593 1.25 1123 659 1.35 1207 717 1.56 1387 773 1.78 1578 823 1.98 1753
4100 605 1.35 1207 670 1.44 1284 727 1.65 1465 781 1.86 1648 832 2.08 1840
4200 616 1.45 1292 680 1.53 1361 737 1.74 1543 789 1.95 1726 841 2.18 1927
4300 628 1.56 1387 690 1.63 1447 747 1.83 1621 798 2.05 1814 849 2.30 2032
4400 639 1.67 1482 701 1.73 1534 757 1.92 1700 807 2.16 1910 858 2.41 2177
4500 651 1.78 1578 712 1.84 1630 767 2.02 1788 817 2.27 2006 866 2.51 2265
4600 662 1.91 1691 722 1.95 1726 777 2.13 1884 827 2.38 2102 874 2.62 2362
4700 674 2.03 1796 733 2.07 1831 787 2.24 1980 836 2.50 2256 882 2.73 2460
4800 686 2.17 1919 744 2.20 1945 797 2.36 2084 846 2.62 2362 891 2.85 2569
4900 698 2.31 2041 755 2.33 2058 808 2.48 2238 856 2.73 2460 900 2.99 2698
5000 710 2.45 2212 766 2.47 2230 818 2.61 2353 866 2.86 2578 910 3.12 2819
STANDARD AND ALTERNATE MOTORS (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
3000 800 1.38 1233 850 1.52 1353 879 1.38 1233 925 1.81 1604 964 1.92 1761
3100 805 1.44 1284 857 1.63 1447 896 1.66 1473 935 1.93 1709 975 1.98 1811
3200 812 1.51 1344 862 1.71 1517 908 1.85 1639 944 2.01 1836 984 2.09 1903
3300 819 1.59 1413 867 1.78 1578 915 1.98 1753 952 2.11 1920 993 2.22 2014
3400 827 1.67 1482 873 1.85 1639 920 2.07 1831 963 2.21 2005 1001 2.31 2091
3500 833 1.75 1552 880 1.94 1718 926 2.15 1901 970 2.41 2134 1007 2.46 2221
3600 840 1.83 1621 888 2.04 1805 931 2.23 1971 976 2.47 2230 1017 2.62 2362
3700 847 1.92 1700 895 2.13 1884 938 2.33 2108 981 2.56 2309 1024 2.77 2496
3800 856 2.02 1788 901 2.23 1971 945 2.44 2203 986 2.65 2389 1029 2.89 2605
3900 865 2.12 1875 908 2.32 2050 953 2.55 2300 993 2.75 2478 1034 3.00 2707
4000 875 2.22 1962 915 2.42 2186 960 2.65 2389 1000 2.87 2587 1039 3.10 2800
4100 883 2.32 2050 924 2.54 2291 966 2.76 2487 1008 2.99 2698 1046 3.21 2904
4200 889 2.41 2177 934 2.65 2389 972 2.87 2587 1015 3.12 2819 1053 3.34 3029
4300 896 2.51 2265 943 2.77 2406 980 2.99 2698 1021 3.23 2923 1061 3.48 3166
4400 903 2.62 2362 951 2.89 2603 990 3.12 2819 1028 3.36 3049 1068 3.61 3241
4500 912 2.74 2469 958 3.00 2707 999 3.26 2982 1035 3.51 3161 1074 3.74 3346
4600 921 2.87 2587 965 3.11 2810 1008 3.39 3078 1041 3.68 3295 1081 3.90 3450
4700 930 3.00 2707 972 3.23 2923 1017 3.45 3224 1048 3.80 3436 1088 4.13 3552
4800 938 3.14 2838 980 3.37 3058 1025 3.55 3362 1055 3.85 3584 1095 4.30 3653
4900 946 3.27 2962 990 3.51 3149 1034 3.71 3505 1062 3.98 3741 1101 4.45 3753
5000 954 3.39 3078 998 3.62 3271 1042 3.85 3654 1068 4.08 3907 1108 4.59 3851
Bhp — Brake Horsepower Input to Fan
Watts — Input Watts to Motor