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Table 30 — Fan Performance, 48EJ,EK054-068 — Vertical Discharge Units
LEGEND
Bhp — Brake Horsepower
NOTES:
1. Fan performance is based on dry coils, economizer, roof curb,
cabinet losses, and clean 2-in. filters.
2. Conversion — Bhp to watts:
3. Variable Air Volume units will operate down to 70 cfm/ton in the
cooling mode. Performance at 70 cfm/ton is limited to unloaded
operation and may be additionally limited by edb (entering dry
bulb) and ewb (entering wet bulb) conditions.
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.20.40.60.81.01.21.41.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 420 2.89 486 3.60 539 4.27 584 4.93 624 5.59 660 6.25 694 6.91 725 7.57
12,000 473 4.27 537 5.10 589 5.87 633 6.62 673 7.36 709 8.10 742 8.83 773 9.56
15,000 556 7.05 616 8.06 666 8.99 709 9.89 748 10.76 783 11.62 816 12.47 846 13.31
16,000 584 8.18 643 9.25 692 10.24 735 11.19 773 12.11 808 13.01 841 13.90 871 14.78
17,000 612 9.42 670 10.56 718 11.60 760 12.60 799 13.56 833 14.51 866 15.44 896 16.36
18,000 640 10.78 697 11.98 745 13.08 786 14.12 824 15.13 859 16.12 891 17.10 921 18.06
19,000 669 12.26 724 13.51 771 14.67 813 15.77 850 16.83 884 17.86 916 18.87 946 19.88
20,000 698 13.86 752 15.17 798 16.38 839 17.53 876 18.64 910 19.72 942 20.78 972 21.82
21,000 726 15.58 780 16.96 825 18.22 866 19.42 902 20.58 936 21.71 968 22.81 997 23.89
22,000 756 17.44 808 18.87 853 20.19 892 21.45 929 22.65 962 23.82 993 24.97 1023 26.10
23,000 785 19.43 836 20.92 880 22.30 919 23.60 955 24.86 988 26.08 1019 27.27 1049 28.44
24,000 814 21.56 864 23.11 907 24.54 946 25.90 982 27.20 1015 28.47 1045 29.70 1074 30.91
25,000 843 23.83 892 25.44 935 26.92 973 28.33 1008 29.68 1041 31.00 1072 32.28 1100 33.53
26,000 873 26.25 921 27.91 963 29.45 1001 30.91 1035 32.31 1068 33.67 1098 35.00 1127 36.29
27,000 903 28.82 950 30.53 991 32.12 1028 33.63 1062 35.09 1094 36.49 1124 37.86 1153 39.21
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.82.02.22.42.62.83.03.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 755 8.24 783 8.92 809 9.60 835 10.29 859 10.98 883 11.68 905 12.39 927 13.10
12,000 802 10.30 830 11.04 857 11.78 882 12.52 906 13.27 930 14.03 953 14.79 974 15.55
15,000 875 14.15 903 14.99 929 15.83 954 16.67 978 17.51 1002 18.35 1024 19.19 1046 20.04
16,000 900 15.65 927 16.53 954 17.40 979 18.27 1003 19.14 1026 20.01 1048 20.89 1070 21.76
17,000 925 17.27 952 18.18 978 19.09 1003 19.99 1027 20.90 1050 21.80 1072 22.70 1094 23.61
18,000 950 19.01 977 19.95 1003 20.90 1028 21.84 1051 22.77 1075 23.71 1097 24.64 1118 25.58
19,000 975 20.87 1002 21.85 1028 22.83 1052 23.80 1076 24.77 1099 25.74 1121 26.71 1143 27.67
20,000 1000 22.85 1027 23.87 1052 24.89 1077 25.90 1101 26.90 1124 27.90 1146 28.90 1167 29.90
21,000 1025 24.96 1052 26.02 1077 27.07 1102 28.12 1126 29.16 1148 30.19 1170 31.23 1192 32.26
22,000 1051 27.21 1077 28.31 1103 29.40 1127 30.48 1151 31.55 1173 32.62 1195 33.69 — —
23,000 1076 29.59 1103 30.73 1128 31.85 1152 32.97 1176 34.08 1198 35.19 — — — —
24,000 1102 32.11 1128 33.28 1153 34.45 1178 35.61 1201 36.75 — — — — — —
25,000 1128 34.77 1154 35.99 1179 37.19 ——————————
26,000 1154 37.57 1180 38.83 — — ——————————
27,000 118040.53——————————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4 3.6 3.8
Rpm Bhp Rpm Bhp Rpm Bhp
10,000 949 13.81 970 14.54 990 15.26
12,000 996 16.31 1016 17.09 1037 17.86
15,000 1067 20.88 1088 21.73 1108 22.59
16,000 1091 22.64 1112 23.52 1131 24.40
17,000 1115 24.51 1136 25.42 1156 26.33
18,000 1139 26.51 1160 27.45 1180 28.39
19,000 1164 28.64 1184 29.60 — —
20,000 1188 30.90 ————
21,000 ——————
22,000 ——————
23,000 ——————
24,000 ——————
25,000 ——————
26,000 ——————
27,000 ——————
Watts =
Bhp x 746
Motor Efficiency