Carrier WEATHERMAKER 48/50AJ - Manual (Page 24)

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Table 35 — Fan Performance — 50AW,AY041 Units
Table 36 — Fan Performance — 50AW,AY,A4,A5050 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
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
8,000 499 2.88 546 3.27 590 3.66 632 4.06 672 4.46
9,000 548 3.78 591 4.20 631 4.62 670 5.04 708 5.47
10,000 599 4.86 637 5.30 675 5.74 711 6.19 746 6.64
11,000 649 6.11 685 6.57 720 7.04 753 7.51 786 7.99
12,000 701 7.54 734 8.03 766 8.52 797 9.02 828 9.52
13,000 753 9.18 783 9.69 813 10.21 842 10.72 871 11.25
14,000 805 11.03 833 11.56 861 12.09 889 12.63 916 13.18
15,000 857 13.09 884 13.64 910 14.20 936 14.76 962 15.32
16,000 910 15.38 935 15.95 960 16.53 984 17.11 1008 17.69
17,000 963 17.91 986 18.50 1010 19.09 1033 19.69 1056 20.30
18,000 1016 20.68 1038 21.29 1060 21.90 1082 22.52 1104 23.15
19,000 1069 23.71 1090 24.33 1111 24.96 1132 25.60 1153 26.25
20,000 1122 26.99 1142 27.64 1162 28.29 1182 28.95 — —
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
8,000 711 4.87 748 5.28 784 5.70 819 6.14 853 6.58
9,000 744 5.90 778 6.33 812 6.77 845 7.22 877 7.67
10,000 779 7.09 812 7.55 844 8.01 875 8.47 905 8.94
11,000 817 8.47 848 8.94 878 9.43 907 9.91 936 10.40
12,000 857 10.02 886 10.52 915 11.03 943 11.53 970 12.04
13,000 899 11.77 927 12.30 953 12.82 980 13.35 1006 13.88
14,000 942 13.73 968 14.27 994 14.82 1019 15.37 1044 15.92
15,000 987 15.89 1011 16.46 1036 17.03 1060 17.61 1083 18.18
16,000 1032 18.28 1056 18.87 1079 19.47 1101 20.06 1124 20.66
17,000 1078 20.91 1101 21.52 1123 22.13 1145 22.75 1166 23.36
18,000 1126 23.77 1147 24.41 1168 25.04 1189 25.67 1209 26.31
19,000 1173 26.89 1194 27.54 1214 28.19 1234 28.85 — —
20,000 — — — — — — — — — —
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
8,000 885 7.03 917 7.48 948 7.95 978 8.42 1007 8.90
9,000 908 8.13 939 8.60 968 9.08 997 9.56 1026 10.05
10,000 934 9.42 963 9.90 992 10.39 1020 10.89 1047 11.39
11,000 964 10.89 992 11.39 1019 11.89 1045 12.40 1071 12.91
12,000 996 12.55 1023 13.07 1048 13.59 1074 14.11 1099 14.64
13,000 1031 14.41 1056 14.95 1081 15.48 1105 16.03 1129 16.57
14,000 1068 16.48 1092 17.03 1115 17.59 1138 18.15 1161 18.71
15,000 1106 18.75 1129 19.33 1151 19.91 1174 20.48 1196 21.07
16,000 1146 21.25 1168 21.85 1189 22.45 1211 23.04 1232 23.64
17,000 1187 23.98 1208 24.60 1229 25.21 1249 25.83 1270 26.46
18,000 1230 26.95 1250 27.58 1269 28.22 1289 28.86 — —
19,000 — — — — — — — — — —
20,000 — — — — — — — — — —
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.2 3.4 3.6 3.8 4.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
8,000 1036 9.39 1063 9.88 1090 10.38 1116 10.88 1142 11.39
9,000 1053 10.55 1080 11.05 1107 11.56 1133 12.08 1158 12.60
10,000 1073 11.89 1100 12.41 1125 12.93 1151 13.45 1175 13.99
11,000 1097 13.43 1122 13.96 1147 14.49 1171 15.02 1195 15.56
12,000 1123 15.17 1147 15.71 1171 16.25 1195 16.80 1218 17.35
13,000 1152 17.12 1175 17.67 1198 18.22 1221 18.78 1243 19.35
14,000 1184 19.27 1206 19.84 1228 20.41 1250 20.99 1271 21.56
15,000 1217 21.65 1239 22.23 1260 22.82 1280 23.41 — —
16,000 1253 24.25 1273 24.85 1293 25.45 — — — —
17,000 1289 27.07 — — — — — — — —
18,000 — — — — — — — — — —
19,000 — — — — — — — — — —
20,000 — — — — — — — — — —
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
8,000 509 2.95 555 3.35 599 3.74 640 4.14 680 4.54 718 4.95 755 5.36 791 5.79 826 6.22 859 6.66
9,000 558 3.87 600 4.29 640 4.71 678 5.13 715 5.56 751 5.99 786 6.42 819 6.87 852 7.31 884 7.77
10,000 608 4.96 646 5.40 683 5.85 719 6.30 754 6.75 787 7.20 819 7.66 851 8.12 882 8.58 912 9.06
11,000 659 6.23 694 6.69 728 7.16 762 7.64 794 8.11 825 8.59 856 9.07 886 9.55 915 10.04 943 10.53
12,000 710 7.68 743 8.17 775 8.67 806 9.17 836 9.67 866 10.17 895 10.67 923 11.17 950 11.68 978 12.19
13,000 763 9.35 793 9.86 823 10.37 852 10.89 880 11.42 908 11.94 935 12.47 962 12.99 988 13.52 1014 14.05
14,000 815 11.22 843 11.75 871 12.29 899 12.83 925 13.38 952 13.92 978 14.47 1003 15.02 1028 15.57 1052 16.12
15,000 868 13.31 895 13.86 921 14.42 946 14.98 972 15.55 997 16.12 1021 16.69 1045 17.26 1069 17.83 1092 18.41
16,000 921 15.64 946 16.21 971 16.78 995 17.37 1019 17.96 1043 18.54 1066 19.14 1089 19.73 1111 20.32 1134 20.92
17,000 974 18.20 998 18.79 1021 19.39 1044 19.99 1067 20.60 1089 21.21 1112 21.82 1134 22.43 1155 23.05 1176 23.66
18,000 1028 21.01 1050 21.62 1072 22.24 1094 22.86 1116 23.49 1137 24.12 1158 24.75 1179 25.38 1200 26.02 1220 26.65
19,000 1081 24.08 1103 24.71 1124 25.35 1145 25.99 1165 26.63 1185 27.28 1206 27.93 1226 28.58 1245 29.24 1265 29.90
20,000 1135 27.42 1155 28.06 1175 28.72 1195 29.38 1215 30.04 1234 30.71 1254 31.38 1273 32.05 1292 32.72 — —
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
8,000 892 7.12 923 7.57 954 8.04 984 8.52 1013 9.00 1041 9.49 1069 9.98 1095 10.48 1121 10.98 1147 11.49
9,000 915 8.23 945 8.70 975 9.18 1003 9.67 1032 10.16 1059 10.66 1086 11.16 1112 11.67 1138 12.19 1163 12.71
10,000 941 9.53 970 10.02 998 10.51 1026 11.00 1053 11.51 1080 12.01 1106 12.53 1131 13.05 1156 13.58 1181 14.11
11,000 971 11.02 999 11.52 1026 12.02 1052 12.53 1078 13.05 1103 13.57 1128 14.09 1153 14.63 1177 15.16 1201 15.71
12,000 1004 12.70 1030 13.22 1056 13.74 1081 14.26 1106 14.79 1130 15.33 1154 15.86 1178 16.41 1201 16.96 1224 17.51
13,000 1039 14.59 1064 15.12 1088 15.66 1113 16.20 1136 16.74 1160 17.29 1183 17.85 1206 18.40 1228 18.96 1250 19.53
14,000 1076 16.68 1100 17.23 1123 17.79 1147 18.35 1169 18.91 1192 19.48 1214 20.04 1236 20.62 1257 21.19 1279 21.77
15,000 1115 18.98 1138 19.56 1160 20.14 1182 20.72 1204 21.30 1226 21.88 1247 22.47 1268 23.05 1289 23.65 — —
16,000 1156 21.52 1178 22.11 1199 22.71 1220 23.31 1241 23.91 1262 24.51 1282 25.12 — — — — — —
17,000 1198 24.28 1218 24.90 1239 25.52 1259 26.14 1279 26.76 1299 27.38 — — — — — — — —
18,000 1240 27.29 1260 27.93 1280 28.57 1300 29.21 — — — — — — — — — — — —
19,000 1284 30.55 — — — — — — — — — — — — — — — — — —
20,000 — — — — — — — — — — — — — — — — — — — —
Watts =
Bhp x 746
Motor efficiency