13
Table 13 — Fan Performance — 50AJ,AK027,030 Units
Table 14 — Fan Performance — 50AJ,AK035 Units
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. Performance at
70 cfm/ton is limited to unloaded operation and may be additionally limited
by edb and ewb conditions.
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
5,500 394 1.42 450 1.74 508 2.11 562 2.50 611 2.90 656 3.31 699 3.72 739 4.14 776 4.56 812 4.98
6,000 404 1.62 468 2.01 525 2.40 576 2.80 624 3.21 668 3.63 710 4.05 750 4.48 787 4.91 823 5.35
7,000 449 2.23 508 2.65 560 3.07 608 3.49 653 3.92 695 4.36 736 4.81 774 5.26 810 5.72 845 6.18
8,000 496 2.98 550 3.43 599 3.88 644 4.32 686 4.78 726 5.24 764 5.70 801 6.17 836 6.65 869 7.13
8,250 508 3.18 561 3.65 609 4.10 653 4.55 695 5.01 734 5.47 772 5.95 808 6.42 843 6.90 876 7.38
9,000 544 3.86 595 4.35 640 4.83 682 5.30 722 5.77 760 6.25 796 6.74 831 7.23 864 7.72 897 8.22
10,000 592 4.90 640 5.43 683 5.93 723 6.43 760 6.93 796 7.43 830 7.93 864 8.44 896 8.95 927 9.47
11,000 641 6.09 687 6.66 727 7.19 765 7.72 801 8.24 835 8.76 867 9.29 899 9.82 930 10.35 959 10.88
12,000 691 7.45 734 8.06 772 8.62 808 9.18 842 9.73 875 10.27 906 10.82 936 11.36 966 11.91 994 12.47
13,000 741 8.98 782 9.63 819 10.23 853 10.81 886 11.39 917 11.96 947 12.52 976 13.09 1004 13.66 1031 14.23
13,750 779 10.25 818 10.92 854 11.55 887 12.16 919 12.75 949 13.34 978 13.93 1006 14.51 1033 15.09 1060 15.68
14,000 791 10.70 830 11.38 866 12.02 898 12.63 930 13.23 960 13.83 988 14.42 1016 15.01 1043 15.59 1070 16.18
15,000 842 12.60 879 13.32 913 13.99 945 14.63 975 15.26 1003 15.88 1031 16.50 1058 17.11 1084 17.72 1109 18.33
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
5,500 846 5.41 879 5.85 910 6.28 941 6.72 970 7.16 998 7.61 1025 8.06 1052 8.51 1078 8.96 1103 9.42
6,000 857 5.79 889 6.24 921 6.69 951 7.14 980 7.59 1008 8.05 1035 8.51 1062 8.97 1088 9.44 1113 9.91
7,000 878 6.64 910 7.11 941 7.58 971 8.05 1000 8.53 1028 9.01 1055 9.50 1082 9.98 1108 10.47 1133 10.96
8,000 902 7.61 933 8.10 964 8.59 993 9.09 1022 9.59 1049 10.09 1076 10.59 1102 11.10 1128 11.61 1153 12.12
8,250 908 7.88 939 8.37 969 8.87 999 9.37 1027 9.87 1055 10.38 1082 10.89 1108 11.40 1133 11.91 1158 12.43
9,000 928 8.72 959 9.23 988 9.74 1017 10.26 1045 10.78 1072 11.30 1098 11.82 1124 12.35 1150 12.88 1174 13.41
10,000 957 9.99 986 10.52 1015 11.04 1043 11.58 1070 12.11 1097 12.65 1122 13.19 1148 13.74 1173 14.29 1197 14.84
11,000 988 11.42 1017 11.96 1044 12.51 1071 13.06 1098 13.61 1123 14.17 1149 14.73 1173 15.29 1198 15.85 — —
12,000 1022 13.02 1049 13.58 1076 14.14 1102 14.71 1127 15.28 1152 15.85 1177 16.42 — — — — — —
13,000 1058 14.80 1084 15.38 1110 15.96 1135 16.54 1159 17.13 1184 17.71 ————————
13,750 1086 16.26 1111 16.85 1136 17.44 1161 18.04 1185 18.63 — — ————————
14,000 1095 16.77 1120 17.37 1145 17.96 1169 18.56 1193 19.16 — — ————————
15,000 113418.94115819.55118220.16——————————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
7,000 517 2.72 568 3.14 616 3.56 660 3.99 702 4.43 742 4.88 779 5.33 815 5.79 850 6.25 883 6.71
8,000 569 3.59 616 4.04 660 4.49 701 4.94 740 5.40 778 5.87 814 6.34 848 6.82 881 7.30 913 7.79
9,000 622 4.63 665 5.10 706 5.58 744 6.05 781 6.54 816 7.02 851 7.52 883 8.01 915 8.51 946 9.02
10,000 675 5.84 716 6.34 754 6.84 790 7.34 824 7.84 858 8.35 890 8.86 921 9.37 952 9.89 981 10.42
10,500 702 6.51 741 7.02 778 7.53 813 8.04 847 8.56 879 9.07 910 9.59 941 10.12 971 10.65 999 11.18
11,000 729 7.23 767 7.75 803 8.27 837 8.80 869 9.32 901 9.85 931 10.38 961 10.91 990 11.45 1018 11.99
12,000 784 8.80 819 9.35 853 9.90 885 10.44 916 10.99 946 11.54 975 12.09 1003 12.64 1031 13.20 1058 13.76
13,000 839 10.57 872 11.15 904 11.72 934 12.29 964 12.86 992 13.42 1020 13.99 1047 14.56 1073 15.14 1099 15.72
14,000 894 12.54 925 13.15 955 13.74 984 14.33 1012 14.92 1039 15.51 1066 16.10 1092 16.69 1117 17.28 1142 17.88
15,000 949 14.73 979 15.36 1008 15.98 1035 16.59 1062 17.20 1088 17.81 1113 18.42 1138 19.03 1162 19.64 1186 20.25
16,000 1005 17.13 1033 17.78 1060 18.43 1087 19.06 1112 19.69 1137 20.32 1161 20.95 1185 21.58 1208 22.21 1231 22.84
17,000 1061 19.76 1088 20.43 1114 21.10 1139 21.76 1163 22.41 1187 23.06 1210 23.71 1233 24.36 1256 25.01 1277 25.66
17,500 1088 21.16 1115 21.84 1140 22.52 1165 23.19 1189 23.85 1212 24.52 1235 25.17 1257 25.83 1279 26.49 — —
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
7,000 915 7.18 946 7.65 976 8.13 1005 8.61 1033 9.09 1060 9.57 1086 10.06 1112 10.54 1137 11.04 1161 11.53
8,000 944 8.28 974 8.77 1003 9.27 1032 9.77 1059 10.27 1086 10.78 1112 11.29 1137 11.80 1162 12.31 1186 12.82
9,000 976 9.53 1005 10.04 1033 10.56 1061 11.08 1088 11.61 1114 12.13 1139 12.66 1164 13.19 1189 13.72 1212 14.26
10,000 1010 10.95 1038 11.48 1065 12.02 1092 12.55 1118 13.09 1143 13.64 1168 14.19 1193 14.74 1216 15.29 1240 15.84
10,500 1028 11.72 1055 12.26 1082 12.81 1108 13.35 1134 13.90 1159 14.46 1183 15.02 1207 15.57 1231 16.14 1254 16.70
11,000 1046 12.54 1073 13.09 1099 13.64 1125 14.20 1150 14.76 1175 15.32 1199 15.89 1223 16.45 1246 17.03 1269 17.60
12,000 1084 14.32 1110 14.89 1135 15.46 1160 16.03 1185 16.61 1208 17.19 1232 17.77 1255 18.35 1278 18.94 1300 19.53
13,000 1124 16.30 1149 16.88 1173 17.47 1197 18.06 1221 18.65 1244 19.24 1267 19.84 1289 20.44 — — — —
14,000 1166 18.48 1190 19.08 1213 19.68 1236 20.29 1259 20.89 1281 21.50 ————————
15,000 1209 20.87 1232 21.48 1255 22.10 1277 22.72 1299 23.35 — — ————————
16,000 125423.48127624.11129724.75——————————————
17,000 129926.31——————————————————
17,500 ————————————————————
Watts =
Bhp x 746
Motor efficiency
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