Carrier WEATHERMAKER 48/50AJ Operation And Service Manual page 22

Table 31 — Fan Performance — 50AW,AY027,030 and 50A4,A5025-030 Units
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 325 0.62 402
5,000 366 0.97 435
6,000 411 1.43 473
7,000 459 2.02 515
8,000 508 2.76 559
9,000 560 3.64 605
10,000 612 4.68 654
11,000 665 5.89 703
12,000 718 7.28 754
13,000 772 8.85 806
14,000 826 10.61 858
15,000 881 12.57 910
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 809 2.84 841
5,000 831 3.41 863
6,000 852 4.05 884
7,000 875 4.78 907
8,000 901 5.63 932
9,000 930 6.60 960
10,000 961 7.72 990
11,000 995 8.99 1022
12,000 1030 10.43 1057
13,000 1068 12.04 1093
14,000 1107 13.83 1131
15,000 1147 15.82 1171
AIRFLOW
0.2 0.4
(Cfm)
Rpm Bhp Rpm
7,000 522 2.06 573
8,000 576 2.75 622
9,000 630 3.57 672
10,000 686 4.52 724
10,500 714 5.05 750
11,000 742 5.62 777
12,000 799 6.88 831
13,000 856 8.29 886
14,000 914 9.87 942 10.24
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
2.2 2.4
(Cfm)
Rpm Bhp Rpm
7,000 912 4.46 942
8,000 944 5.37 973
9,000 978 6.40 1006
10,000 1014 7.55 1041
10,500 1033 8.17 1059
11,000 1052 8.83 1078
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 — — —
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.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.83 466 1.05 523 1.27
1.19 495 1.42 548 1.67
1.66 529 1.91 579 2.16
2.25 566 2.51 613 2.78
2.99 606 3.25 650 3.53
3.88 649 4.14 690 4.42
4.92 694 5.19 732 5.47
6.14 740 6.41 776 6.69
7.53 788 7.80 822 8.09
9.11 838 9.38 869 9.67
10.87 888 11.15 917 11.44
12.84 939 13.12 967 13.41
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
3.07 872 3.30 901 3.53
3.66 894 3.91 924 4.16
4.32 915 4.59 945 4.87
5.07 937 5.37 967 5.66
5.94 961 6.25 990 6.56
6.93 988 7.25 1016 7.58
8.06 1018 8.40 1045 8.74
9.34 1049 9.69 1075 10.04
10.78 1083 11.14 1108 11.51
12.40 1119 12.77 1143 13.14
14.20 1156 14.58 1179 14.96
16.19 1194 16.58 — —
Table 32 — Fan Performance — 50AW,AY,A4,A5035 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
2.32 620 2.57 664 2.82
3.03 665 3.30 706 3.57
3.86 712 4.16 750 4.45
4.84 761 5.15 797 5.46
5.38 786 5.70 821 6.02
5.95 811 6.28 845 6.61
7.22 863 7.57 894 7.91
8.65 916 9.01 945 9.37
969 10.61 997 10.98 1024 11.36 1050 11.73 1076 12.10 1102 12.47 1127 12.84 1152 13.20
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
4.68 970 4.90 998 5.12 1025
5.62 1001 5.86 1029 6.11 1055
6.67 1034 6.93 1060 7.20 1086
7.84 1068 8.12 1094 8.41 1119
8.47 1086 8.77 1111 9.06 1136
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
— — — —
— — — — —
— — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
574 1.49 620 1.72 663
597 1.91 642 2.16 685
625 2.43 668 2.69 709
657 3.06 698 3.34 737
691 3.82 731 4.11 768
729 4.72 766 5.02 802
769 5.77 804 6.09 838
811 7.00 844 7.31 876
854 8.39 886 8.71 916
899 9.98 929 10.30 958
946 11.75 974 12.07 1002
994 13.72 1021 14.05 1047
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
929 3.76 956 3.99 982
952 4.41 980 4.67 1007
974 5.14 1001 5.42 1028
995 5.95 1023 6.25 1049
1018 6.87 1045 7.18 1072
1043 7.91 1070 8.23 1096
1071 9.08 1097 9.42 1122
1101 10.39 1126 10.75 1151
1133 11.87 1157 12.24 1181
1167 13.52 1191 13.89 —
— — — — —
— — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
705 3.06 744 3.30 780
745 3.84 782 4.10 817
787 4.74 822 5.02 855
831 5.77 864 6.07 896
854 6.34 886 6.65 917
877 6.94 909 7.26 939
925 8.25 954 8.60 983
974 9.72 1002 10.08 1029 10.44 1056 10.79 1082 11.14 1108 11.49
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
5.33 1051 5.54 1076
6.35 1081 6.58 1106
7.46 1112 7.72 1136
8.69 1144 8.97 1168
9.35 1161 9.64 1184
—
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2. Conversion — Bhp to watts:
Bhp x 746
Watts =
Motor efficiency
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.
22
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
1.94 703 2.17 740 2.39
2.41 724 2.65 762 2.90
2.96 747 3.23 784 3.50
3.62 774 3.91 809 4.20
4.41 803 4.71 837 5.01
5.33 835 5.64 868 5.96
6.40 870 6.73 902 7.06
7.64 907 7.97 937 8.31
9.04 946 9.38 975 9.72
10.63 987 10.97 1014 11.32
12.41 1029 12.75 1055 13.10
14.38 1073 14.73 1098 15.08
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
4.22 1008 4.45 1032 4.68
4.92 1032 5.17 1057 5.43
5.69 1054 5.97 1080 6.24
6.55 1076 6.84 1101 7.14
7.50 1097 7.81 1123 8.13
8.57 1121 8.90 1146 9.23
9.76 1147 10.11 1171 10.46
11.11 1175 11.47 1198 11.82
12.61 — — —
— — — —
— — — —
— — — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
3.54 815 3.78 849 4.01
4.36 850 4.62 883 4.87
5.30 888 5.58 919 5.86
6.37 927 6.67 957 6.97
6.96 947 7.27 977 7.57 1005
7.58 968 7.90 997 8.21 1025
8.93 1011 9.27 1039 9.60 1065
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
5.75 1101 5.96 1124 6.16 1148
6.82 1130 7.05 1154 7.28 1177
7.98 1160 8.23 1184 8.49 1207
9.25 1192 9.52 1215 9.80 1238 10.07
9.93 1208 10.22 1231 10.50 1253 10.79
—
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2.0
Rpm Bhp
776 2.62
797 3.16
819 3.77
843 4.49
870 5.32
900 6.28
932 7.39
967 8.65
1003 10.07
1041 11.68
1081 13.46
1123 15.45
4.0
Rpm Bhp
1056 4.92
1082 5.68
1105 6.52
1126 7.44
1147 8.44
1170 9.56
1194 10.80
— —
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2.0
Rpm Bhp
881 4.24
914 5.12
949 6.13
986 7.26
7.87
8.52
9.93
— —
4.0
Rpm Bhp
6.36
7.51
8.74
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