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Table 28 — Fan Performance, 48EJ,EK038,044 — 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
7,000 429 1.70 484 2.40 536 2.70 584 3.10 630 3.50 674 3.90 716 4.30 756 4.80
8,000 475 2.36 525 3.09 571 3.49 616 3.90 658 4.31 699 4.74 738 5.17 776 5.61
9,000 523 3.11 567 3.97 610 4.39 651 4.82 690 5.26 728 5.71 765 6.16 801 6.62
10,000 571 4.00 612 5.01 651 5.46 689 5.91 725 6.37 761 6.84 795 7.31 829 7.79
11,000 620 5.04 658 6.22 694 6.69 729 7.17 763 7.65 796 8.14 829 8.64 860 9.14
12,000 670 6.24 705 7.61 738 8.10 771 8.60 803 9.11 834 9.62 865 10.13 894 10.65
13,000 720 7.61 752 9.19 784 9.70 814 10.23 844 10.75 874 11.29 902 11.82 931 12.36
14,000 771 9.15 801 10.97 830 11.51 859 12.05 887 12.60 915 13.15 942 13.71 969 14.27
15,000 822 10.88 850 12.95 877 13.52 904 14.08 931 14.65 957 15.22 983 15.80 1008 16.38
16,000 873 12.80 899 15.16 925 15.74 951 16.33 976 16.92 1001 17.51 1025 18.11 1049 18.71
17,000 924 14.91 949 17.59 974 18.20 998 18.80 1022 19.41 1045 20.03 1069 20.64 1092 21.26
18,000 976 17.24 999 20.26 1023 20.88 1046 21.51 1068 22.14 1091 22.77 1113 23.41 1135 24.05
19,000 1027 19.77 1050 23.17 1072 23.82 1094 24.46 1115 25.11 1137 25.76 1158 26.42 1179 27.07
20,000 1079 22.53 1100 26.33 1122 27.00 1142 27.66 1163 28.33 1183 29.00 — — — —
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
7,000 794 5.20 832 5.62 868 6.06 903 6.52 937 6.98 971 7.44 1003 7.92 1035 8.40
8,000 813 6.06 848 6.52 883 6.98 916 7.45 949 7.92 981 8.40 1012 8.89 1042 9.38
9,000 835 7.09 869 7.56 902 8.04 934 8.53 965 9.02 995 9.52 1025 10.02 1054 10.53
10,000 862 8.28 893 8.77 925 9.27 955 9.77 985 10.28 1014 10.79 1043 11.31 1071 11.84
11,000 891 9.64 921 10.15 951 10.67 980 11.19 1008 11.71 1036 12.24 1064 12.78 1090 13.32
12,000 924 11.18 952 11.71 980 12.24 1008 12.78 1035 13.32 1062 13.87 1088 14.42 1114 14.98
13,000 958 12.91 986 13.45 1012 14.01 1039 14.56 1064 15.13 1090 15.69 1115 16.26 1140 16.83
14,000 995 14.83 1021 15.40 1046 15.97 1071 16.55 1096 17.13 1120 17.71 1144 18.29 1168 18.89
15,000 1033 16.96 1058 17.55 1082 18.14 1106 18.73 1130 19.33 1153 19.93 1176 20.54 1199 21.14
16,000 1073 19.31 1097 19.92 1120 20.52 1143 21.14 1165 21.75 1188 22.37 — — — —
17,000 1114 21.88 1137 22.51 1159 23.13 1181 23.76 — — — — — — — —
18,000 1156 24.69 1178 25.33 1199 25.98 ——————————
19,000 ————————————————
20,000 ————————————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4 3.6 3.8
Rpm Bhp Rpm Bhp Rpm Bhp
7,000 1066 8.88 1096 9.38 1125 9.88
8,000 1072 9.88 1101 10.39 1130 10.90
9,000 1083 11.04 1111 11.56 1139 12.08
10,000 1098 12.37 1125 12.90 1152 13.44
11,000 1117 13.86 1143 14.41 1169 14.96
12,000 1139 15.54 1164 16.11 1189 16.68
13,000 1164 17.41 1188 17.99 — —
14,000 1191 19.48 ————
15,000 ——————
16,000 ——————
17,000 ——————
18,000 ——————
19,000 ——————
20,000 ——————
Watts =
Bhp x 746
Motor Efficiency