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Table 29 — Fan Performance, 48EJ,EK048 — Vertical Discharge Units
(For EW,EY units, reduce net available external static pressure by 0.5 in. wg)
LEGEND
Bhp — Brake Horsepower
NOTES:
1. Fan performance is based on wet 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. Per-
formance 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
9,000 528 3.20 572 4.00 615 4.40 656 4.90 695 5.30 733 5.80 769 6.20 805 6.70
10,000 577 4.10 617 5.10 657 5.50 694 6.00 731 6.40 766 6.90 801 7.40 834 7.90
11,000 627 5.10 664 6.30 700 6.80 735 7.30 769 7.70 802 8.20 835 8.70 866 9.20
12,000 677 6.30 711 7.70 745 8.20 778 8.70 809 9.20 841 9.70 871 10.20 901 10.80
13,000 728 7.71 760 9.31 791 9.83 822 10.35 851 10.88 881 11.42 909 11.95 938 12.50
14,000 779 9.28 809 11.11 838 11.65 867 12.20 895 12.75 923 13.31 950 13.87 976 14.43
15,000 830 11.03 858 13.13 886 13.69 913 14.26 939 14.83 966 15.41 991 15.99 1017 16.57
16,000 882 12.97 908 15.36 934 15.95 960 16.54 985 17.13 1010 17.73 1034 18.33 1058 18.93
17,000 934 15.12 959 17.83 983 18.44 1008 19.05 1031 19.66 1055 20.28 1078 20.89 1101 21.52
18,000 986 17.47 1010 20.53 1033 21.16 1056 21.79 1078 22.42 1101 23.06 1123 23.70 1145 24.34
19,000 1038 20.05 1061 23.49 1083 24.13 1105 24.78 1126 25.44 1147 26.09 1169 26.75 1190 27.41
20,000 1091 22.84 1112 26.69 1133 27.36 1154 28.03 1174 28.70 1195 29.37 — — — —
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
9,000 839 7.10 873 7.62 905 8.10 937 8.59 968 9.08 999 9.57 1028 10.08 1057 10.58
10,000 866 8.40 898 8.85 929 9.34 959 9.85 989 10.36 1018 10.87 1047 11.39 1075 11.91
11,000 897 9.70 927 10.24 956 10.76 985 11.28 1013 11.81 1041 12.34 1068 12.87 1095 13.41
12,000 930 11.30 958 11.82 986 12.36 1014 12.90 1041 13.44 1067 13.99 1093 14.54 1119 15.10
13,000 965 13.04 992 13.59 1019 14.15 1045 14.71 1071 15.27 1096 15.84 1121 16.41 1146 16.98
14,000 1002 14.99 1028 15.56 1054 16.14 1079 16.71 1103 17.30 1127 17.88 1151 18.47 1175 19.06
15,000 1041 17.15 1066 17.74 1090 18.34 1114 18.93 1138 19.53 1161 20.13 1184 20.74 — —
16,000 1082 19.52 1105 20.14 1128 20.75 1151 21.37 1174 21.99 1196 22.61 — — — —
17,000 1124 22.14 1146 22.77 1168 23.40 1190 24.03 — — — — — — — —
18,000 1166 24.98 1188 25.63 — — ——————————
19,000 ————————————————
20,000 ————————————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4 3.6 3.8
Rpm Bhp Rpm Bhp Rpm Bhp
9,000 1086 11.10 1114 11.61 1141 12.14
10,000 1102 12.44 1129 12.97 1155 13.51
11,000 1122 13.96 1147 14.51 1173 15.06
12,000 1144 15.66 1169 16.23 1194 16.80
13,000 1170 17.56 1194 18.14 — —
14,000 1198 19.66 ————
15,000 ——————
16,000 ——————
17,000 ——————
18,000 ——————
19,000 ——————
20,000 ——————
Watts =
Bhp x 746
Motor Efficiency