Carrier WeatherMaker 48A2020 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 11

AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 311 0.54 390
5,000 347 0.84 417
6,000 387 1.25 450
7,000 430 1.77 488
7,500 452 2.07 507
8,000 474 2.41 528
9,000 519 3.19 570
10,000 565 4.10 613
11,000 611 5.17 657
12,000 658 6.39 702
12,500 681 7.06 725
13,000 705 7.77 748
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 802 2.21 833
5,000 822 2.71 854
6,000 842 3.29 874
7,000 862 3.96 894
7,500 872 4.33 904
8,000 883 4.73 914
9,000 905 5.60 936
10,000 931 6.58 961
11,000 958 7.70 987
12,000 989 8.97 1016
12,500 1005 9.66 1032
13,000 1021 10.39 1048
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 314 0.54 394
5,000 352 0.85 422
6,000 394 1.26 456
7,000 438 1.79 495
8,000 483 2.44 536
9,000 530 3.23 579
10,000 577 4.15 624
11,000 625 5.22 669
12,000 674 6.45 715
13,000 722 7.85 762
14,000 771 9.41 810
15,000 821 11.15 857 11.38
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 803 2.22 835
5,000 824 2.72 856
6,000 845 3.31 877
7,000 866 3.99 898
8,000 888 4.77 919
9,000 912 5.65 942
10,000 938 6.65 968
11,000 967 7.78 995
12,000 998 9.07 1025
13,000 1031 10.50 1058 10.80
14,000 1067 12.10 1092 12.41
15,000 1104 13.88 1128 14.19
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 9 — Fan Performance — 50A2,A3,A6,A7020 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.71 457 0.88 515 1.05
1.02 480 1.21 536 1.40
1.43 507 1.63 560 1.84
1.96 540 2.17 588 2.38
2.27 557 2.48 604 2.70
2.61 576 2.82 620 3.04
3.39 614 3.60 656 3.83
4.31 655 4.53 694 4.76
5.37 697 5.60 734 5.84
6.60 741 6.83 776 7.07
7.27 763 7.50 797 7.74
7.98 785 8.21 819 8.46
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
2.38 864 2.55 893 2.71
2.89 885 3.08 914 3.26
3.50 905 3.70 934 3.90
4.19 924 4.41 954 4.63
4.56 934 4.79 964 5.02
4.97 945 5.21 974 5.45
5.85 966 6.11 995 6.37
6.85 990 7.13 1018 7.40
7.99 1015 8.27 1043 8.55
9.26 1043 9.55 1070 9.85
9.95 1058 10.25 1084 10.55
10.69 1074 10.99 1099 11.29
Table 10 — Fan Performance — 50A2,A3,A6,A7025-030 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.72 460 0.89 517 1.05
1.03 484 1.22 540 1.42
1.45 513 1.65 565 1.86
1.98 546 2.19 594 2.41
2.64 583 2.85 628 3.08
3.43 623 3.65 664 3.88
4.36 665 4.58 703 4.82
5.44 708 5.67 744 5.91
6.67 753 6.90 787 7.15
8.07 798 8.30 831 8.55
9.64 844 9.88 875 10.13
890 11.62 921 11.88
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
2.38 865 2.55 894 2.72
2.91 887 3.09 916 3.28
3.52 908 3.72 937 3.92
4.21 928 4.43 958 4.66
5.01 950 5.25 979 5.49
5.90 972 6.16 1001 6.42
6.92 997 7.19 1025 7.46
8.07 1023 8.35 1051 8.63
9.35 1052 9.65 1078 9.94
1083 11.10 1109 11.40
1117 12.71 1141 13.02
1152 14.50 1175 14.81
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
567 1.21 613 1.38 656
587 1.59 633 1.78 676
609 2.05 654 2.26 696
634 2.61 677 2.83 718
648 2.93 690 3.16 730
663 3.28 704 3.52 743
696 4.07 734 4.32 771
731 5.00 767 5.26 802
769 6.08 803 6.34 836
809 7.32 841 7.58 872
830 8.00 861 8.26 891
850 8.71 881 8.98 910
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
921 2.88 949 3.06 975
943 3.45 970 3.64 997
963 4.10 991 4.31 1017
983 4.85 1010 5.07 1037
993 5.25 1020 5.48 1047
1003 5.68 1030 5.92 1057
1023 6.62 1051 6.88 1077
1046 7.67 1073 7.94 1099
1070 8.84 1096 9.12 1122
1096 10.14 1121 10.44 1146
1110 10.85 1135 11.15 1159
1124 11.59 1149 11.90 1173
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
569 1.22 615 1.39 658
590 1.61 636 1.79 678
613 2.07 658 2.28 700
640 2.64 682 2.86 723
670 3.32 710 3.55 749
704 4.12 741 4.37 778
740 5.06 776 5.32 810
779 6.16 813 6.41 845
820 7.40 851 7.67 882
862 8.81 892 9.08 921
905 10.39 934 10.66 962 10.94
949 12.14 977 12.42 1004 12.70
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
923 2.89 950 3.06 976
945 3.46 972 3.65 999
966 4.12 993 4.32 1020
986 4.88 1014 5.10 1041
1007 5.72 1035 5.96 1061
1029 6.67 1056 6.93 1083
1052 7.73 1079 8.00 1105
1077 8.92 1103 9.20 1129
1104 10.24 1130 10.54 1154 10.83
1133 11.71 1158 12.01 1182 12.32
1165 13.33 1188 13.65 —
1198 15.13 — — —
11
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
1.55 696 1.71 733 1.88
1.97 716 2.16 753 2.34
2.47 735 2.68 773 2.88
3.06 756 3.29 793 3.51
3.40 768 3.63 804 3.87
3.76 780 4.00 816 4.24
4.57 806 4.82 840 5.08
5.51 835 5.78 868 6.04
6.60 868 6.87 899 7.15
7.85 902 8.12 932 8.40
8.53 920 8.80 949 9.08
9.25 939 9.53 967 9.81
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
3.23 1001 3.40 1026
3.82 1023 4.01 1048
4.51 1043 4.71 1069
5.29 1063 5.51 1089
5.71 1073 5.94 1099
6.16 1083 6.39 1108
7.13 1103 7.38 1129
8.21 1124 8.48 1149
9.41 1147 9.69 1171
10.73 1171 11.03 1195 11.33
11.45 1183 11.75 —
12.20 1197 12.51 —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
1.55 697 1.72 734
1.98 718 2.17 755
2.49 739 2.70 776
3.09 761 3.32 798
3.80 786 4.04 821
4.62 813 4.88 847
5.58 843 5.84 876
6.68 877 6.95 907
7.93 912 8.21 941
9.35 950 9.63 977
989 11.22 1015 11.51
1030 12.99 1055 13.28
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
3.24 1002 3.41 1027
3.83 1024 4.02 1049
4.53 1046 4.73 1071
5.31 1067 5.53 1092
6.20 1087 6.43 1113
7.18 1108 7.43 1134
8.27 1130 8.54 1155
9.49 1154 9.77 1178 10.06
1179 11.13 —
— — —
— — — —
— — — —
2.0
Rpm Bhp
768 2.04
788 2.52
808 3.09
828 3.74
839 4.10
850 4.48
873 5.34
900 6.31
929 7.42
960 8.68
977 9.37
994 10.10
4.0
Rpm Bhp
3.58 1050 3.75
4.20 1072 4.39
4.91 1093 5.12
5.72 1113 5.94
6.16 1123 6.39
6.63 1133 6.87
7.64 1153 7.89
8.75 1174 9.02
9.98 1195 10.26
— —
— — —
— — —
2.0
Rpm Bhp
1.88 769 2.05
2.35 791 2.54
2.90 811 3.11
3.54 833 3.77
4.28 855 4.52
5.13 880 5.39
6.11 907 6.38
7.22 937 7.50
8.49 970 8.78
9.92 1005 10.21
1041 11.81
1080 13.58
4.0
Rpm Bhp
3.58 1051 3.76
4.21 1074 4.40
4.93 1096 5.14
5.75 1116 5.97
6.67 1137 6.90
7.69 1158 7.94
8.81 1180 9.08
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