Carrier WEATHERMAKER 48/50AJ Operation And Service Manual page 8

Table 3 — Fan Performance — 48AJ,AK020,025 and 48A2,A3020 Units
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 328 0.62 406
5,000 369 0.97 439
6,000 415 1.43 477
7,000 463 2.01 519
7,500 488 2.36 541
8,000 513 2.74 564
9,000 564 3.61 612
10,000 616 4.64 661
11,000 669 5.84 711
12,000 723 7.20 762
12,500 750 7.95 788
13,000 777 8.75 814
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 814 3.01 845
5,000 837 3.55 869
6,000 861 4.17 893
7,000 885 4.89 917
7,500 898 5.28 930
8,000 912 5.71 943
9,000 940 6.66 970
10,000 971 7.75 1000
11,000 1004 9.00 1032
12,000 1039 10.42 1066
12,500 1058 11.20 1085
13,000 1077 12.03 1103
Table 4 — Fan Performance — 48AJ,AK027,030 and 48A2,A3025-030 Units
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 331 0.63 408
5,000 374 0.98 443
6,000 421 1.45 482
7,000 471 2.04 526
8,000 522 2.78 572
9,000 574 3.66 621
10,000 628 4.71 671
11,000 682 5.91 722
12,000 736 7.30 774
13,000 791 8.86 827
14,000 846 10.61 880
15,000 902 12.56 934
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 815 3.02 847
5,000 839 3.57 871
6,000 864 4.20 896
7,000 890 4.93 921
8,000 917 5.76 948
9,000 946 6.73 976
10,000 978 7.84 1007
11,000 1012 9.10 1040
12,000 1048 10.54 1075
13,000 1087 12.17 1113
14,000 1128 13.98 1153
15,000 1171 16.00 1194
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
0.84 472 1.07 529 1.30
1.19 500 1.43 554 1.69
1.65 533 1.90 584 2.17
2.25 570 2.50 618 2.78
2.60 590 2.86 636 3.13
2.98 611 3.24 655 3.52
3.87 655 4.13 696 4.42
4.91 701 5.18 739 5.47
6.11 749 6.40 785 6.69
7.49 798 7.78 831 8.08
8.25 823 8.54 855 8.85
9.05 848 9.35 880 9.66
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
3.26 876 3.51 905 3.76
3.82 900 4.10 929 4.37
4.46 923 4.76 953 5.05
5.20 947 5.51 977 5.83
5.61 960 5.93 989 6.25
6.04 973 6.37 1002 6.70
7.00 999 7.35 1028 7.69
8.10 1028 8.46 1056 8.82
9.36 1059 9.73 1086 10.09
10.79 1093 11.16 1119 11.53
11.57 1110 11.94 1136 12.32
12.40 1129 12.77 1154 13.15
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.85 474 1.08 531 1.31
1.20 503 1.45 558 1.70
1.68 538 1.93 589 2.20
2.28 576 2.54 623 2.81
3.03 619 3.29 662 3.57
3.92 664 4.19 704 4.47
4.97 711 5.25 748 5.54
6.19 759 6.48 795 6.77
7.59 809 7.88 842 8.18
9.16 860 9.46 891 9.78
10.93 912 11.24 941 11.56
12.89 964 13.21 992 13.54
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
3.27 877 3.52 906 3.77
3.84 902 4.11 931 4.39
4.49 926 4.79 956 5.08
5.24 951 5.55 980 5.87
6.09 977 6.42 1006 6.76
7.07 1005 7.42 1033 7.76
8.19 1035 8.55 1063 8.91
9.47 1067 9.83 1094 10.20
10.91 1102 11.28 1127 11.66
12.54 1138 12.91 1163 13.30
14.36 1177 14.74 — —
16.38 — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
580 1.54 626 1.78 668
604 1.95 650 2.21 692
631 2.45 676 2.73 717
662 3.06 704 3.36 744
679 3.42 720 3.72 759
697 3.81 737 4.11 775
735 4.71 772 5.02 808
776 5.77 811 6.08 845
819 6.99 852 7.30 884
864 8.39 895 8.71 925
887 9.16 917 9.48 947
910 9.97 940 10.30 969
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
934 4.02 961 4.28 987
958 4.64 985 4.92 1012
981 5.35 1009 5.65 1036
1005 6.14 1033 6.46 1059
1017 6.58 1045 6.90 1071
1030 7.04 1057 7.37 1083
1055 8.04 1082 8.39 1109
1083 9.18 1109 9.54 1135
1112 10.46 1138 10.84 1163
1144 11.91 1169 12.30 1193
1161 12.70 1185 13.09 —
1178 13.54 — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
581 1.55 627 1.79 670
607 1.96 653 2.23 695
636 2.47 680 2.75 721
668 3.10 710 3.39 749
704 3.86 743 4.16 781
743 4.77 780 5.08 815
784 5.84 819 6.15 853
828 7.08 861 7.40 893
874 8.49 905 8.82 935
922 10.09 951 10.42 979
970 11.88 998 12.21 1025
1020 13.87 1046 14.21 1072
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
935 4.03 962 4.29 988
960 4.66 987 4.94 1014
984 5.38 1012 5.68 1038
1009 6.18 1036 6.50 1063
1034 7.09 1061 7.43 1088
1061 8.11 1088 8.46 1114
1089 9.27 1116 9.63 1141
1120 10.57 1145 10.95 1170
1152 12.04 1177 12.42 —
1187 13.68 — — —
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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.
8
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.02 708 2.27 745 2.51
2.48 731 2.74 769 3.01
3.01 756 3.30 793 3.59
3.65 782 3.96 818 4.27
4.02 796 4.33 832 4.65
4.42 811 4.74 846 5.06
5.33 843 5.65 876 5.98
6.40 878 6.72 909 7.06
7.63 915 7.96 945 8.30
9.04 955 9.37 984 9.72
9.81 976 10.15 1004 10.49
10.63 997 10.97 1024 11.31
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
4.54 1013 4.80 1038 5.06
5.20 1038 5.48 1063 5.76
5.94 1062 6.24 1087 6.54
6.78 1085 7.09 1110 7.41
7.23 1097 7.56 1122 7.88
7.71 1109 8.04 1134 8.38
8.75 1134 9.10 1159 9.45
9.91 1160 10.28 1185 10.65
11.22 1188 11.60 —
12.68 — — —
— — — —
— — — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.03 709 2.28 746 2.52
2.49 734 2.76 771 3.03
3.04 759 3.33 796 3.62
3.69 787 4.00 823 4.31
4.47 817 4.79 851 5.11
5.40 850 5.72 883 6.05
6.47 885 6.81 917 7.14
7.72 924 8.06 954 8.40
9.15 965 9.48 993 9.83
10.75 1007 11.10 1034 11.45
12.56 1052 12.90 1078 13.26
14.55 1098 14.91 1122 15.26
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
4.55 1014 4.81 1039 5.07
5.22 1039 5.50 1064 5.78
5.97 1064 6.27 1089 6.57
6.82 1088 7.14 1114 7.45
7.76 1113 8.10 1138 8.43
8.82 1139 9.17 1164 9.52
10.00 1166 10.37 1191 10.74
11.33 1195 11.71 —
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2.0
Rpm Bhp
780 2.76
804 3.28
828 3.88
852 4.58
866 4.96
879 5.38
909 6.32
940 7.40
975 8.65
1012 10.07
1031 10.84
1051 11.67
4.0
Rpm Bhp
1062 5.32
1087 6.04
1111 6.84
1135 7.73
1147 8.21
1159 8.72
1183 9.81
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2.0
Rpm Bhp
781 2.77
806 3.30
831 3.91
857 4.62
885 5.44
915 6.39
948 7.49
983 8.75
1021 10.19
1061 11.80
1103 13.62
1147 15.63
4.0
Rpm Bhp
1063 5.33
1089 6.06
1114 6.87
1138 7.77
1163 8.77
1188 9.88
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