Carrier 48/50AJ Air Conditioner User Manual


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Table 9 — Fan Performance — 48AJ,AK,A2,A3050 Units
Table 10 — Fan Performance — 48AJ,AK051 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
RpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhp
8,000 512 2.98 560 3.38 604 3.79 647 4.20 688 4.62 728 5.05 766 5.49 803 5.94 839 6.40 874 6.86
9,000 561 3.90 604 4.33 645 4.77 685 5.20 723 5.65 760 6.10 796 6.55 831 7.02 864 7.49 897 7.97
10,000 611 5.00 651 5.45 689 5.91 725 6.37 761 6.84 795 7.31 829 7.79 861 8.27 893 8.76 925 9.26
11,000 662 6.27 699 6.75 734 7.23 768 7.72 801 8.21 833 8.71 865 9.20 895 9.71 925 10.21 955 10.73
12,000 714 7.74 748 8.24 780 8.75 812 9.26 843 9.77 873 10.29 903 10.81 932 11.33 960 11.86 988 12.39
13,000 766 9.41 798 9.93 828 10.46 858 11.00 887 11.54 916 12.08 944 12.62 971 13.16 998 13.71 1024 14.26
14,000 819 11.29 848 11.84 877 12.39 905 12.95 932 13.51 959 14.07 986 14.63 1012 15.20 1037 15.77 1062 16.34
15,000 872 13.40 899 13.96 926 14.54 953 15.11 979 15.70 1004 16.28 1029 16.87 1054 17.46 1078 18.05 1102 18.64
16,000 925 15.74 951 16.32 976 16.91 1001 17.51 1026 18.12 1050 18.72 1074 19.33 1097 19.94 1121 20.55 1143 21.17
17,000 979 18.32 1003 18.92 1027 19.53 1051 20.15 1074 20.77 1097 21.40 1120 22.03 1142 22.66 1164 23.29 1186 23.93
18,000 1032 21.15 1055 21.77 1078 22.40 1100 23.04 1123 23.68 1145 24.33 1166 24.98 1188 25.63 1209 26.28 1230 26.93
19,000 1086 24.24 1108 24.88 1129 25.52 1151 26.18 1172 26.84 1193 27.51 1214 28.18 1234 28.85 1255 29.52 1275 30.19
20,000 1140 27.60 1161 28.25 1181 28.92 1202 29.59 1222 30.27 1242 30.95 1262 31.64 1281 32.33 — — — —
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
RpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhpRpmBhp
8,000 907 7.34 940 7.81 971 8.30 1001 8.79 1030 9.29 1059 9.79 1086 10.29 1113 10.80 1139 11.31 1164 11.83
9,000 930 8.46 961 8.95 991 9.46 1021 9.97 1050 10.48 1078 11.00 1105 11.52 1131 12.05 1157 12.58 1183 13.12
10,000 955 9.76 985 10.27 1014 10.79 1043 11.31 1071 11.84 1098 12.37 1125 12.91 1151 13.46 1177 14.01 1202 14.56
11,000 984 11.25 1012 11.77 1040 12.30 1068 12.84 1095 13.38 1121 13.93 1147 14.49 1172 15.05 1197 15.61 1222 16.18
12,000 1016 12.93 1043 13.47 1069 14.02 1095 14.57 1121 15.13 1147 15.69 1172 16.26 1196 16.83 1220 17.41 1244 18.00
13,000 1050 14.82 1076 15.38 1101 15.94 1126 16.51 1151 17.08 1175 17.66 1199 18.24 1223 18.83 1246 19.42 1269 20.02
14,000 1087 16.92 1111 17.49 1136 18.07 1159 18.66 1183 19.25 1206 19.84 1229 20.44 1252 21.04 1274 21.64 1296 22.25
15,000 1126 19.23 1149 19.83 1172 20.43 1195 21.03 1217 21.64 1239 22.25 1261 22.86 1283 23.48 — — — —
16,000 1166 21.78 1188 22.40 1210 23.01 1232 23.64 1253 24.26 1275 24.89 1296 25.52 — — — — — —
17,000 1208 24.56 1229 25.20 1250 25.84 1271 26.48 1291 27.12 ——————————
18,000 1250 27.59 1271 28.25 1291 28.91 ——————————————
19,000 1294 30.87 — — — ———————————————
20,000 ————————————————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 419 2.89 483 3.54 538 4.25 587 5.00 632 5.79
12,000 476 4.33 534 5.04 585 5.78 632 6.56 674 7.39
13,000 506 5.21 561 5.94 610 6.70 655 7.50 697 8.34
14,000 536 6.18 588 6.96 636 7.74 680 8.56 720 9.41
15,000 566 7.28 617 8.09 662 8.90 704 9.73 744 10.59
16,000 597 8.48 645 9.34 689 10.17 730 11.02 768 11.90
17,000 628 9.80 674 10.71 717 11.58 756 12.45 793 13.34
18,000 659 11.25 704 12.21 745 13.11 783 14.00 819 14.91
19,000 691 12.82 734 13.84 773 14.77 810 15.69 845 16.62
20,000 723 14.53 764 15.60 802 16.57 838 17.52 872 18.47
21,000 755 16.37 794 17.49 831 18.51 866 19.49 899 20.47
22,000 787 18.35 825 19.53 861 20.59 894 21.60 927 22.61
23,000 819 20.48 856 21.71 890 22.81 923 23.87 954 24.90
24,000 851 22.75 887 24.04 920 25.19 952 26.28 983 27.34
25,000 883 25.17 918 26.52 951 27.72 982 28.84 1011 29.94
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 673 6.60 711 7.42 747 8.26 782 9.10 815 9.96
12,000 714 8.24 751 9.12 786 10.02 819 10.92 851 11.85
13,000 735 9.22 772 10.11 806 11.03 839 11.97 870 12.92
14,000 758 10.30 793 11.21 827 12.15 859 13.11 890 14.08
15,000 781 11.50 816 12.43 849 13.38 881 14.35 911 15.35
16,000 804 12.82 839 13.76 871 14.73 902 15.72 932 16.73
17,000 829 14.27 862 15.23 894 16.21 925 17.21 954 18.24
18,000 853 15.85 886 16.82 918 17.82 948 18.84 977 19.88
19,000 879 17.58 911 18.56 942 19.57 971 20.60 1000 21.65
20,000 905 19.44 936 20.44 966 21.45 995 22.50 1023 23.57
21,000 931 21.46 961 22.47 991 23.50 1019 24.55 1047 25.63
22,000 958 23.62 987 24.64 1016 25.69 1044 26.76 1071 27.84
23,000 985 25.93 1014 26.97 1042 28.03 1069 29.11 1096 30.21
24,000
1012 28.40 1041 29.46 1068 30.54 1095 31.63 1121 32.74
25,000 1040 31.02 1068 32.11 1095 33.21 1121 34.31 1147 35.44
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 846 10.82 876 11.69 906 12.56 934 13.44 961 14.32
12,000 881 12.78 911 13.72 939 14.67 967 15.62 993 16.58
13,000 900 13.88 929 14.85 957 15.82 984 16.81 1011 17.80
14,000 920 15.06 948 16.06 976 17.07 1003 18.08 1029 19.11
15,000 940 16.36 968 17.38 996 18.41 1022 19.45 1048 20.50
16,000 961 17.76 989 18.80 1016 19.86 1042 20.92 1067 22.00
17,000 983 19.28 1010 20.34 1036 21.42 1062 22.51 1087 23.60
18,000 1005 20.94 1032 22.01 1058 23.11 1083 24.21 1108 25.33
19,000 1027 22.72 1054 23.81 1080 24.92 1105 26.04 1129 27.18
20,000 1050 24.65 1076 25.76 1102 26.88 1126 28.01 1151 29.17
21,000 1073 26.73 1099 27.84 1124 28.97 1149 30.13 1173 31.29
22,000 1097 28.95 1123 30.08 1147 31.22 1172 32.39 1195 33.56
23,000 1122 31.33 1147 32.47 1171 33.63 1195 34.80 — —
24,000 1146 33.87 1171 35.02 1195 36.19 — — — —
25,000 1171 36.58 1196 37.74 ——————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.2 3.4 3.6 3.8 4.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
10,000 988 15.21 1014 16.09 1039 16.98 1063 17.88 1087 18.77
12,000 1019 17.54 1045 18.51 1069 19.48 1093 20.45 1117 21.43
13,000 1036 18.80 1061 19.80 1086 20.81 1109 21.82 1133 22.84
14,000 1054 20.13 1079 21.17 1103 22.21 1126 23.26 1149 24.31
15,000 1073 21.56 1097 22.63 1121 23.70 1144 24.78 1167 25.86
16,000 1092 23.08 1116 24.17 1140 25.28 1162 26.38 1185 27.49
17,000 1112 24.71 1135 25.83 1159 26.95 1181 28.09 — —
18,000 1132 26.46 1156 27.60 1178 28.74 — — — —
19,000 1153 28.33 1176 29.48 1199 30.65 — — — —
20,000 1174 30.33 1197 31.50 ——————
21,000 119632.47————————
22,000 ——————————
23,000 ——————————
24,000 ——————————
25,000 ——————————
Watts =
Bhp x 746
Motor efficiency
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