Carrier WEATHERMAKER 48/50AJ - Manual (Page 22)

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Table 31 — Fan Performance — 50AW,AY027,030 and 50A4,A5025-030 Units
Table 32 — Fan Performance — 50AW,AY,A4,A5035 Units
LEGEND
Bhp — Brake Horsepower
edb — Entering Dry Bulb
ewb — Entering Wet Bulb
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
4,000 325 0.62 402 0.83 466 1.05 523 1.27 574 1.49 620 1.72 663 1.94 703 2.17 740 2.39 776 2.62
5,000 366 0.97 435 1.19 495 1.42 548 1.67 597 1.91 642 2.16 685 2.41 724 2.65 762 2.90 797 3.16
6,000 411 1.43 473 1.66 529 1.91 579 2.16 625 2.43 668 2.69 709 2.96 747 3.23 784 3.50 819 3.77
7,000 459 2.02 515 2.25 566 2.51 613 2.78 657 3.06 698 3.34 737 3.62 774 3.91 809 4.20 843 4.49
8,000 508 2.76 559 2.99 606 3.25 650 3.53 691 3.82 731 4.11 768 4.41 803 4.71 837 5.01 870 5.32
9,000 560 3.64 605 3.88 649 4.14 690 4.42 729 4.72 766 5.02 802 5.33 835 5.64 868 5.96 900 6.28
10,000 612 4.68 654 4.92 694 5.19 732 5.47 769 5.77 804 6.09 838 6.40 870 6.73 902 7.06 932 7.39
11,000 665 5.89 703 6.14 740 6.41 776 6.69 811 7.00 844 7.31 876 7.64 907 7.97 937 8.31 967 8.65
12,000 718 7.28 754 7.53 788 7.80 822 8.09 854 8.39 886 8.71 916 9.04 946 9.38 975 9.72 1003 10.07
13,000 772 8.85 806 9.11 838 9.38 869 9.67 899 9.98 929 10.30 958 10.63 987 10.97 1014 11.32 1041 11.68
14,000 826 10.61 858 10.87 888 11.15 917 11.44 946 11.75 974 12.07 1002 12.41 1029 12.75 1055 13.10 1081 13.46
15,000 881 12.57 910 12.84 939 13.12 967 13.41 994 13.72 1021 14.05 1047 14.38 1073 14.73 1098 15.08 1123 15.45
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
4,000 809 2.84 841 3.07 872 3.30 901 3.53 929 3.76 956 3.99 982 4.22 1008 4.45 1032 4.68 1056 4.92
5,000 831 3.41 863 3.66 894 3.91 924 4.16 952 4.41 980 4.67 1007 4.92 1032 5.17 1057 5.43 1082 5.68
6,000 852 4.05 884 4.32 915 4.59 945 4.87 974 5.14 1001 5.42 1028 5.69 1054 5.97 1080 6.24 1105 6.52
7,000 875 4.78 907 5.07 937 5.37 967 5.66 995 5.95 1023 6.25 1049 6.55 1076 6.84 1101 7.14 1126 7.44
8,000 901 5.63 932 5.94 961 6.25 990 6.56 1018 6.87 1045 7.18 1072 7.50 1097 7.81 1123 8.13 1147 8.44
9,000 930 6.60 960 6.93 988 7.25 1016 7.58 1043 7.91 1070 8.23 1096 8.57 1121 8.90 1146 9.23 1170 9.56
10,000 961 7.72 990 8.06 1018 8.40 1045 8.74 1071 9.08 1097 9.42 1122 9.76 1147 10.11 1171 10.46 1194 10.80
11,000 995 8.99 1022 9.34 1049 9.69 1075 10.04 1101 10.39 1126 10.75 1151 11.11 1175 11.47 1198 11.82 — —
12,000 1030 10.43 1057 10.78 1083 11.14 1108 11.51 1133 11.87 1157 12.24 1181 12.61 — — — — — —
13,000 1068 12.04 1093 12.40 1119 12.77 1143 13.14 1167 13.52 1191 13.89 — — — — — — — —
14,000 1107 13.83 1131 14.20 1156 14.58 1179 14.96 — — — — — — — — — — — —
15,000 1147 15.82 1171 16.19 1194 16.58 — — — — — — — — — — — — — —
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
7,000 522 2.06 573 2.32 620 2.57 664 2.82 705 3.06 744 3.30 780 3.54 815 3.78 849 4.01 881 4.24
8,000 576 2.75 622 3.03 665 3.30 706 3.57 745 3.84 782 4.10 817 4.36 850 4.62 883 4.87 914 5.12
9,000 630 3.57 672 3.86 712 4.16 750 4.45 787 4.74 822 5.02 855 5.30 888 5.58 919 5.86 949 6.13
10,000 686 4.52 724 4.84 761 5.15 797 5.46 831 5.77 864 6.07 896 6.37 927 6.67 957 6.97 986 7.26
10,500 714 5.05 750 5.38 786 5.70 821 6.02 854 6.34 886 6.65 917 6.96 947 7.27 977 7.57 1005 7.87
11,000 742 5.62 777 5.95 811 6.28 845 6.61 877 6.94 909 7.26 939 7.58 968 7.90 997 8.21 1025 8.52
12,000 799 6.88 831 7.22 863 7.57 894 7.91 925 8.25 954 8.60 983 8.93 1011 9.27 1039 9.60 1065 9.93
13,000 856 8.29 886 8.65 916 9.01 945 9.37 974 9.72 1002 10.08 1029 10.44 1056 10.79 1082 11.14 1108 11.49
14,000 914 9.87 942 10.24 969 10.61 997 10.98 1024 11.36 1050 11.73 1076 12.10 1102 12.47 1127 12.84 1152 13.20
15,000 971 11.62 998 12.00 1024 12.39 1050 12.77 1075 13.16 1100 13.54 1125 13.93 1149 14.31 1173 14.70 1197 15.08
16,000 1029 13.55 1054 13.94 1079 14.34 1103 14.74 1127 15.13 1151 15.53 1174 15.93 1198 16.33 1220 16.73 1243 17.12
17,000 1088 15.66 1111 16.07 1134 16.47 1157 16.88 1180 17.29 1203 17.70 1225 18.11 1247 18.53 1269 18.93 1290 19.34
17,500 1117 16.79 1140 17.20 1162 17.61 1184 18.02 1207 18.44 1229 18.86 1250 19.27 1272 19.69 1293 20.11 — —
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
7,000 912 4.46 942 4.68 970 4.90 998 5.12 1025 5.33 1051 5.54 1076 5.75 1101 5.96 1124 6.16 1148 6.36
8,000 944 5.37 973 5.62 1001 5.86 1029 6.11 1055 6.35 1081 6.58 1106 6.82 1130 7.05 1154 7.28 1177 7.51
9,000 978 6.40 1006 6.67 1034 6.93 1060 7.20 1086 7.46 1112 7.72 1136 7.98 1160 8.23 1184 8.49 1207 8.74
10,000 1014 7.55 1041 7.84 1068 8.12 1094 8.41 1119 8.69 1144 8.97 1168 9.25 1192 9.52 1215 9.80 1238 10.07
10,500 1033 8.17 1059 8.47 1086 8.77 1111 9.06 1136 9.35 1161 9.64 1184 9.93 1208 10.22 1231 10.50 1253 10.79
11,000 1052 8.83 1078 9.14 1104 9.44 1129 9.75 1154 10.05 1178 10.35 1201 10.64 1224 10.94 1247 11.23 1269 11.53
12,000 1091 10.26 1117 10.58 1142 10.90 1166 11.23 1190 11.54 1213 11.86 1236 12.18 1259 12.49 1281 12.80 — —
13,000 1133 11.83 1157 12.17 1181 12.51 1205 12.85 1228 13.19 1251 13.52 1273 13.86 1295 14.19 — — — —
14,000 1176 13.56 1199 13.92 1222 14.28 1245 14.63 1268 14.99 1290 15.34 — — — — — — — —
15,000 1220 15.45 1243 15.83 1265 16.20 1287 16.58 — — — — — — — — — — — —
16,000 1265 17.52 1287 17.91 — — — — — — — — — — — — — — — —
17,000 — — — — — — — — — — — — — — — — — — — —
17,500 — — — — — — — — — — — — — — — — — — — —
Watts =
Bhp x 746
Motor efficiency