Carrier 48/50AJ Air Conditioner User Manual


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Table 11 — Fan Performance — 48AJ,AK,A2,A3060 Units
Table 12 — Fan Performance — 50AJ,AK020,025 and 50A2,A3020 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 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
12,000 476 4.33 534 5.04 585 5.78 632 6.56 674 7.39 714 8.24 751 9.12 786 10.02 819 10.93 851 11.85
14,000 536 6.19 588 6.96 636 7.74 680 8.56 720 9.41 758 10.30 793 11.21 827 12.15 859 13.11 890 14.08
15,000 566 7.28 617 8.09 662 8.90 704 9.73 744 10.59 781 11.50 816 12.42 849 13.38 881 14.36 911 15.35
16,000 597 8.48 645 9.34 689 10.17 730 11.02 768 11.90 804 12.82 839 13.76 871 14.73 902 15.72 932 16.73
17,000 628 9.80 674 10.71 717 11.58 756 12.45 793 13.34 829 14.27 862 15.23 894 16.21 925 17.21 954 18.24
18,000 659 11.25 704 12.21 745 13.11 783 14.00 819 14.91 853 15.85 886 16.82 918 17.82 948 18.84 977 19.88
19,000 691 12.82 734 13.84 773 14.77 810 15.69 845 16.62 879 17.58 911 18.56 942 19.57 971 20.60 1000 21.65
20,000 723 14.53 764 15.60 802 16.57 838 17.52 872 18.47 905 19.44 936 20.44 966 21.45 995 22.50 1023 23.57
21,000 755 16.37 794 17.49 831 18.51 866 19.49 899 20.47 931 21.46 961 22.47 991 23.50 1019 24.55 1047 25.63
22,000 787 18.35 825 19.53 861 20.59 894 21.60 927 22.61 958 23.62 987 24.64 1016 25.69 1044 26.76 1071 27.84
23,000 819 20.48 856 21.71 890 22.81 923 23.87 954 24.90 985 25.93 1014 26.97 1042 28.03 1069 29.11 1096 30.21
24,000 851 22.75 887 24.04 920 25.19 952 26.28 983 27.34 1012 28.40 1041 29.46 1068 30.54 1095 31.63 1121 32.74
25,000 883 25.17 918 26.52 951 27.72 982 28.84 1011 29.94 1040 31.02 1068 32.11 1095 33.21 1121 34.31 1147 35.44
26,000 916 27.76 950 29.15 981 30.40 1011 31.57 1040 32.70 1068 33.81 1095 34.92 1122 36.04 1147 37.16 1172 38.30
27,000 948 30.49 981 31.95 1012 33.24 1041 34.46 1070 35.62 1097 36.76 1123 37.90 1149 39.04 1174 40.18 1199 41.34
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
12,000 881 12.78 911 13.72 939 14.67 967 15.62 993 16.58 1019 17.54 1045 18.51 1069 19.48 1093 20.45 1117 21.43
14,000 920 15.06 948 16.06 976 17.07 1003 18.08 1029 19.11 1054 20.13 1079 21.17 1103 22.21 1126 23.26 1149 24.31
15,000 940 16.36 968 17.38 996 18.41 1022 19.45 1048 20.50 1073 21.56 1097 22.63 1121 23.70 1144 24.78 1167 25.86
16,000 961 17.76 989 18.80 1016 19.86 1042 20.92 1067 22.00 1092 23.08 1116 24.17 1140 25.28 1162 26.38 1185 27.49
17,000 983 19.28 1010 20.34 1036 21.42 1062 22.51 1087 23.60 1112 24.71 1135 25.83 1159 26.95 1181 28.09 — —
18,000 1005 20.94 1032 22.01 1058 23.11 1083 24.21 1108 25.33 1132 26.46 1156 27.60 1178 28.74 — — — —
19,000 1027 22.72 1054 23.81 1080 24.92 1105 26.04 1129 27.18 1153 28.33 1176 29.48 1199 30.65 — — — —
20,000 1050 24.65 1076 25.76 1102 26.88 1126 28.01 1151 29.17 1174 30.33 1197 31.50 — — — — — —
21,000 1073 26.73 1099 27.84 1124 28.97 1149 30.13 1173 31.29 1196 32.47 — ———————
22,000 1097 28.95 1123 30.08 1147 31.22 1172 32.39 1195 33.56 — — — ———————
23,000 112231.33114732.47117133.63119534.80————————————
24,000 114633.87117135.02119536.19——————————————
25,000 117136.58119637.74————————————————
26,000 119739.46——————————————————
27,000 ————————————————————
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
4,000 311 0.54 390 0.71 457 0.88 515 1.05 567 1.21 613 1.38 656 1.55 696 1.71 733 1.88 768 2.04
5,000 347 0.84 417 1.02 480 1.21 536 1.40 587 1.59 633 1.78 676 1.97 716 2.16 753 2.34 788 2.52
6,000 387 1.25 450 1.43 507 1.63 560 1.84 609 2.05 654 2.26 696 2.47 735 2.68 773 2.88 808 3.09
7,000 430 1.77 488 1.96 540 2.17 588 2.38 634 2.61 677 2.83 718 3.06 756 3.29 793 3.51 828 3.74
7,500 452 2.07 507 2.27 557 2.48 604 2.70 648 2.93 690 3.16 730 3.40 768 3.63 804 3.87 839 4.10
8,000 474 2.41 528 2.61 576 2.82 620 3.04 663 3.28 704 3.52 743 3.76 780 4.00 816 4.24 850 4.48
9,000 519 3.19 570 3.39 614 3.60 656 3.83 696 4.07 734 4.32 771 4.57 806 4.82 840 5.08 873 5.34
10,000 565 4.10 613 4.31 655 4.53 694 4.76 731 5.00 767 5.26 802 5.51 835 5.78 868 6.04 900 6.31
11,000 611 5.17 657 5.37 697 5.60 734 5.84 769 6.08 803 6.34 836 6.60 868 6.87 899 7.15 929 7.42
12,000 658 6.39 702 6.60 741 6.83 776 7.07 809 7.32 841 7.58 872 7.85 902 8.12 932 8.40 960 8.68
12,500 681 7.06 725 7.27 763 7.50 797 7.74 830 8.00 861 8.26 891 8.53 920 8.80 949 9.08 977 9.37
13,000 705 7.77 748 7.98 785 8.21 819 8.46 850 8.71 881 8.98 910 9.25 939 9.53 967 9.81 994 10.10
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
4,000 802 2.21 833 2.38 864 2.55 893 2.71 921 2.88 949 3.06 975 3.23 1001 3.40 1026 3.58 1050 3.75
5,000 822 2.71 854 2.89 885 3.08 914 3.26 943 3.45 970 3.64 997 3.82 1023 4.01 1048 4.20 1072 4.39
6,000 842 3.29 874 3.50 905 3.70 934 3.90 963 4.10 991 4.31 1017 4.51 1043 4.71 1069 4.91 1093 5.12
7,000 862 3.96 894 4.19 924 4.41 954 4.63 983 4.85 1010 5.07 1037 5.29 1063 5.51 1089 5.72 1113 5.94
7,500 872 4.33 904 4.56 934 4.79 964 5.02 993 5.25 1020 5.48 1047 5.71 1073 5.94 1099 6.16 1123 6.39
8,000 883 4.73 914 4.97 945 5.21 974 5.45 1003 5.68 1030 5.92 1057 6.16 1083 6.39 1108 6.63 1133 6.87
9,000 905 5.60 936 5.85 966 6.11 995 6.37 1023 6.62 1051 6.88 1077 7.13 1103 7.38 1129 7.64 1153 7.89
10,000 931 6.58 961 6.85 990 7.13 1018 7.40 1046 7.67 1073 7.94 1099 8.21 1124 8.48 1149 8.75 1174 9.02
11,000 958 7.70 987 7.99 1015 8.27 1043 8.55 1070 8.84 1096 9.12 1122 9.41 1147 9.69 1171 9.98 1195 10.26
12,000 989 8.97 1016 9.26 1043 9.55 1070 9.85 1096 10.14 1121 10.44 1146 10.73 1171 11.03 1195 11.33 — —
12,500 1005 9.66 1032 9.95 1058 10.25 1084 10.55 1110 10.85 1135 11.15 1159 11.45 1183 11.75 — — — —
13,000 1021 10.39 1048 10.69 1074 10.99 1099 11.29 1124 11.59 1149 11.90 1173 12.20 1197 12.51 — — — —
Watts =
Bhp x 746
Motor efficiency
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