13
Table 8 — Fan Performance — 48/50N 120 Nominal Ton Units High-Static Supply Fan Data
AIRFLOW
(cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
24,000
427 4.78 458 5.82 486 6.86 513 7.92 539 8.98
28,000
489 6.84 515 7.99 541 9.14 565 10.30 589 11.48
32,000
520 8.07 545 9.26 569 10.47 592 11.69 614 12.91
34,000
583 10.94 605 12.24 627 13.55 648 14.88 668 16.21
36,000
614 12.60 636 13.95 656 15.32 676 16.69 696 18.07
38,000
646 14.42 666 15.83 686 17.24 705 18.67 724 20.09
40,000
678 16.41 697 17.86 716 19.32 735 20.80 753 22.28
42,000
710 18.56 729 20.07 747 21.58 764 23.10 782 24.63
44,000
742 20.90 760 22.45 777 24.01 794 25.58 811 27.16
46,000
774 23.41 791 25.01 808 26.62 824 28.23 840 29.86
48,000
807 26.12 823 27.77 839 29.42 854 31.08 870 32.75
50,000
839 29.01 854 30.71 870 32.41 885 34.12 900 35.84
52,000
871 32.11 886 33.86 901 35.61 916 37.36 930 39.12
56,000
936 38.94 950 40.77 964 42.60 977 44.45 991 46.30
60,000
1001 46.62 1014 48.55 1027 50.48 1040 52.41 1052 54.35
AIRFLOW
(cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
24,000
564 10.05 588 11.12 611 12.20 633 13.28 655 14.37
28,000
611 12.66 633 13.85 655 15.04 675 16.23 695 17.43
32,000
636 14.15 657 15.39 678 16.64 698 17.88 717 19.13
34,000
688 17.54 708 18.89 727 20.24 745 21.59 763 22.95
36,000
715 19.46 734 20.85 752 22.25 770 23.65 787 25.06
38,000
742 21.53 760 22.97 778 24.42 795 25.87 812 27.33
40,000
770 23.76 788 25.26 804 26.75 821 28.25 837 29.76
42,000
798 26.16 815 27.70 831 29.24 848 30.79 863 32.35
44,000
827 28.73 843 30.32 859 31.92 874 33.51 890 35.11
46,000
856 31.49 871 33.12 887 34.76 902 36.40 917 38.06
48,000
885 34.43 900 36.11 915 37.79 929 39.48 944 41.18
50,000
915 37.56 929 39.29 943 41.02 958 42.75 971 44.49
52,000
944 40.88 958 42.66 972 44.43 986 46.21 999 48.01
56,000
1004 48.15 1017 50.02 1031 51.89 1043 53.76 1056 55.63
60,000
1065 56.29 1077 58.23 1090 60.18 1102 62.14 1114 64.11
AIRFLOW
(cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
24,000
676 15.46 696 16.55 716 17.65 736 18.74 754 19.84
28,000
715 18.63 734 19.84 753 21.05 771 22.25 789 23.47
32,000
736 20.39 755 21.65 773 22.92 790 24.18 808 25.45
34,000
781 24.30 798 25.67 815 27.04 832 28.41 848 29.79
36,000
804 26.48 821 27.89 838 29.31 854 30.73 870 32.16
38,000
829 28.79 845 30.26 861 31.73 877 33.20 892 34.68
40,000
854 31.27 869 32.78 885 34.30 900 35.83 915 37.35
42,000
879 33.91 894 35.47 909 37.04 924 38.61 939 40.18
44,000
905 36.72 920 38.33 934 39.94 949 41.56 963 43.18
46,000
931 39.71 946 41.36 960 43.02 974 44.69 988 46.35
48,000
958 42.88 972 44.58 986 46.28 1000 48.00 1013 49.72
50,000
985 46.24 999 47.99 1012 49.74 1026 51.49 1039 53.25
52,000
1013 49.79 1026 51.58 1039 53.38 1052 55.18 1065 56.99
56,000
1069 57.50 1081 59.38 1094 61.28 1106 63.17 1118 65.06
60,000
1126 66.08 1138 68.04 1149 70.01 1161 72.00 1173 73.97
AIRFLOW
(cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.2 3.4 3.6 3.8 4.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
24,000
773 20.94 791 22.05 809 23.15 826 24.25 843 25.36
28,000
807 24.69 824 25.91 841 27.13 857 28.35 873 29.57
32,000
825 26.72 842 28.00 858 29.27 874 30.55 890 31.83
34,000
865 31.17 881 32.55 896 33.93 912 35.32 927 36.70
36,000
886 33.59 901 35.02 916 36.46 931 37.89 946 39.33
38,000
908 36.15 923 37.64 937 39.12 952 40.62 967 42.10
40,000
930 38.88 945 40.42 959 41.94 974 43.49 988 45.02
42,000
953 41.76 968 43.34 982 44.93 996 46.51 1009 48.10
44,000
977 44.81 991 46.44 1005 48.06 1018 49.70 1032 51.34
46,000
1001 48.02 1015 49.71 1028 51.38 1042 53.07 1055 54.74
48,000
1026 51.43 1040 53.15 1053 54.87 1065 56.60 1078 58.33
50,000
1052 55.02 1064 56.78 1077 58.56 1090 60.32 1102 62.10
52,000
1077 58.79 1090 60.61 1102 62.43 1115 64.24 1127 66.06
56,000
1130 66.96 1142 68.86 1154 70.76 1165 72.67 1177 74.58
60,000
1184 75.95 1195 77.95 1207 79.93 1218 81.93 1229 83.92
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