Carrier WeatherMaker 48A2020 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 17

AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 322 0.62 399
5,000 361 0.95 431
6,000 405 1.41 467
7,000 451 2.00 508
7,500 475 2.34 529
8,000 500 2.72 551
9,000 550 3.60 596
10,000 601 4.63 644
11,000 653 5.83 692
12,000 706 7.20 742
12,500 732 7.96 768
13,000 759 8.76 793
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 808 2.84 840
5,000 829 3.39 861
6,000 849 4.02 881
7,000 871 4.74 903
7,500 883 5.14 915
8,000 896 5.58 927
9,000 924 6.54 954
10,000 954 7.64 983
11,000 987 8.89 1015
12,000 1022 10.31 1048
12,500 1039 11.08 1066
13,000 1058 11.90 1084
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
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:
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 and Humidi-MiZer operation.
Table 21 — Fan Performance — 50A4,A5,A8,A9020 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.82 464 1.04 521 1.26
1.17 491 1.41 545 1.65
1.64 524 1.88 574 2.14
2.22 559 2.48 607 2.75
2.57 579 2.82 625 3.10
2.95 598 3.21 643 3.48
3.83 640 4.09 682 4.36
4.86 684 5.12 723 5.40
6.07 730 6.33 766 6.61
7.45 777 7.71 811 7.99
8.20 801 8.47 834 8.75
9.01 826 9.27 857 9.56
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
3.06 870 3.29 900 3.52
3.64 892 3.89 922 4.14
4.29 912 4.57 942 4.84
5.03 933 5.33 963 5.62
5.44 945 5.75 974 6.05
5.89 957 6.20 985 6.51
6.86 983 7.19 1011 7.51
7.98 1011 8.31 1038 8.65
9.24 1042 9.59 1068 9.94
10.67 1075 11.03 1100 11.39
11.44 1092 11.81 1117 12.17
12.26 1109 12.63 1134 13.00
Table 22 — Fan Performance — 50A4,A5,A8,A9025-030 Units
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 — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
572 1.48 619 1.71 662
594 1.89 640 2.14 682
621 2.40 664 2.67 705
651 3.02 693 3.30 732
668 3.38 708 3.66 746
685 3.77 724 4.06 762
721 4.66 759 4.96 795
760 5.70 796 6.01 830
801 6.91 835 7.22 867
844 8.29 875 8.61 906
866 9.05 897 9.37 927
888 9.86 918 10.17 947
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
928 3.75 955 3.98 981
950 4.40 978 4.65 1005
971 5.12 999 5.39 1026
991 5.92 1019 6.21 1046
1002 6.35 1030 6.66 1057
1014 6.82 1041 7.13 1067
1038 7.84 1064 8.17 1090
1065 8.99 1091 9.34 1116
1094 10.29 1119 10.65 1144
1125 11.75 1150 12.12 1173
1141 12.54 1165 12.91 1189
1158 13.37 1182 13.75 —
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 —
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17
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
1.93 702 2.16 739
2.39 722 2.64 759
2.93 744 3.20 780
3.58 769 3.87 804
3.96 783 4.25 818
4.36 797 4.66 832
5.27 829 5.58 862
6.33 863 6.65 894
7.54 899 7.87 929
8.93 936 9.27 966
9.69 956 10.03 985 10.38
10.50 976 10.84 1004 11.19
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
4.21 1007 4.44 1031
4.90 1031 5.16 1056
5.67 1052 5.94 1077
6.51 1072 6.80 1098
6.96 1083 7.27 1108
7.45 1093 7.76 1118
8.50 1116 8.83 1141
9.68 1141 10.02 1165 10.37
11.01 1168 11.36 1191 11.72
12.48 1197 12.85 —
13.28 — — —
— — — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
1.94 703 2.17 740
2.41 724 2.65 762
2.96 747 3.23 784
3.62 774 3.91 809
4.41 803 4.71 837
5.33 835 5.64 868
6.40 870 6.73 902
7.64 907 7.97 937
9.04 946 9.38 975
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
4.92 1032 5.17 1057
5.69 1054 5.97 1080
6.55 1076 6.84 1101
7.50 1097 7.81 1123
8.57 1121 8.90 1146
9.76 1147 10.11 1171 10.46
11.11 1175 11.47 1198 11.82
12.61 — — —
— — — —
— — — —
— — — —
2.0
Rpm Bhp
2.38 774 2.61
2.89 795 3.14
3.47 816 3.75
4.16 839 4.45
4.55 851 4.84
4.96 864 5.27
5.90 893 6.22
6.98 925 7.31
8.21 958 8.55
9.61 994 9.96
1012 10.73
1031 11.54
4.0
Rpm Bhp
4.67 1055 4.91
5.41 1080 5.67
6.22 1102 6.49
7.10 1123 7.40
7.58 1133 7.88
8.08 1143 8.39
9.16 1165 9.49
1189 10.72
— —
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— — —
— — —
2.0
Rpm Bhp
2.39 776 2.62
2.90 797 3.16
3.50 819 3.77
4.20 843 4.49
5.01 870 5.32
5.96 900 6.28
7.06 932 7.39
8.31 967 8.65
9.72 1003 10.07
1041 11.68
1081 13.46
1123 15.45
4.0
Rpm Bhp
4.68 1056 4.92
5.43 1082 5.68
6.24 1105 6.52
7.14 1126 7.44
8.13 1147 8.44
9.23 1170 9.56
1194 10.80
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