Carrier WEATHERMAKER 48/50AJ Operation And Service Manual page 9

AIRFLOW
0.2 0.4
(Cfm)
Rpm Bhp Rpm
7,000 534 2.46 584
8,000 590 3.27 635
9,000 646 4.23 687
10,000 704 5.35 742
10,500 733 5.97 769
11,000 762 6.63 797
12,000 820 8.09 853
13,000 879 9.72 909
14,000 938 11.54 967
15,000 997 13.56 1024
16,000 1056 15.78 1082
17,000 1116 18.20 1140
17,500 1145 19.49 1170
AIRFLOW
2.2 2.4
(Cfm)
Rpm Bhp Rpm
7,000 927 5.81 956
8,000 960 6.89 989
9,000 994 8.09 1023
10,000 1030 9.42 1058
10,500 1049 10.14 1077
11,000 1069 10.90 1095
12,000 1109 12.55 1135
13,000 1152 14.38 1176
14,000 1196 16.41 1220
15,000 1243 18.63 1265
16,000 1290 21.06 —
17,000 — — —
17,500 — — —
AIRFLOW
0.2
(Cfm)
Rpm
7,000 454
8,000 502
9,000 552
10,000 602
11,000 653
12,000 704
13,000 756
14,000 808
15,000 861
16,000 914
17,000 967
17,500 993
AIRFLOW
1.2
(Cfm)
Rpm
7,000 693
8,000 720
9,000 752
10,000 787
11,000 825
12,000 865
13,000 906
14,000 950
15,000 994
16,000 1039
17,000 1086
17,500 1109
AIRFLOW
2.2
(Cfm)
Rpm
7,000 881
8,000 901
9,000 923
10,000 948
11,000 976
12,000 1008
13,000 1042
14,000 1078
15,000 1116
16,000 1156
17,000 1197
17,500 1218
AIRFLOW
3.2
(Cfm)
Rpm
7,000 1035
8,000 1053
9,000 1072
10,000 1092
11,000 1114
12,000 1139
13,000 1167
14,000 1198
15,000 1230
16,000 1265
17,000 —
17,500 —
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.
Table 5 — Fan Performance — 48AJ,AK,A2,A3035 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
2.80 630 3.13 674 3.48
3.63 677 3.99 718 4.35
4.62 726 5.00 764 5.38
5.77 778 6.17 812 6.57
6.40 804 6.82 837 7.23
7.08 830 7.51 863 7.93
8.56 884 9.01 915 9.46
10.22 939 10.70 968 11.17
12.07 995 12.58 1022 13.07
14.11 1051 14.64 1076 15.16
16.35 1107 16.91 1132 17.45
18.80 1164 19.38 1188 19.95
20.10 1193 20.70 1216 21.28
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
6.13 985 6.45 1012 6.76
7.25 1018 7.60 1045 7.94
8.47 1051 8.85 1078 9.23
9.82 1085 10.23 1112 10.64
10.56 1103 10.97 1129 11.39
11.33 1122 11.76 1147 12.18
13.00 1160 13.44 1185 13.89
14.84 1200 15.31 1224 15.77
16.88 1243 17.36 1266 17.84
19.12 1287 19.61 — —
— — — — —
— — — — —
— — — — —
Table 6 — Fan Performance — 48AJ,AK036 Units
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
Bhp Rpm Bhp
2.15 508 2.52
2.90 550 3.30
3.81 595 4.24
4.89 642 5.34
6.15 689 6.62
7.60 738 8.09
9.24 788 9.76
11.10 838 11.64
13.18 888 13.74
15.49 940 16.06
18.03 991 18.62
19.40 1017 20.00
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
Bhp Rpm Bhp
4.09 734 4.52
4.97 759 5.40
6.00 788 6.45
7.20 821 7.67
8.58 856 9.07
10.14 895 10.66
11.90 935 12.44
13.87 976 14.43
16.05 1019 16.63
18.45 1063 19.06
21.09 1109 21.72
22.50 1131 23.14
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.4
Bhp Rpm Bhp
6.29 914 6.74
7.24 933 7.72
8.35 954 8.85
9.64 978 10.15
11.11 1005 11.63
12.77 1035 13.31
14.64 1068 15.19
16.71 1103 17.28
19.00 1140 19.59
21.51 1178 22.12
24.25 1218 24.89
25.71 1239 26.36
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4
Bhp Rpm Bhp
8.63 1062 9.11
9.69 1081 10.19
10.89 1099 11.41
12.25 1119 12.78
13.79 1140 14.34
15.53 1164 16.09
17.47 1191 18.05
19.63 1221 20.22
22.00 1253 22.62
24.61 1286 25.24
— — —
— — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
716 3.82 756 4.16 793
757 4.72 794 5.08 830
800 5.76 835 6.15 869
846 6.97 879 7.38 911
870 7.64 902 8.05 933
894 8.35 925 8.77 955
944 9.90 973 10.34 1001
996 11.63 1023 12.09 1050
1048 13.55 1074 14.03 1099
1102 15.67 1126 16.17 1150
1156 17.98 1179 18.50 1202
1210 20.50 1233 21.05 1255
1238 21.84 1260 22.40 1282
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
1039 7.06 1065 7.37 1090
1072 8.29 1098 8.63 1122
1104 9.61 1130 9.98 1155
1138 11.04 1163 11.44 1188
1155 11.81 1180 12.23 1204
1173 12.61 1197 13.04 1221
1209 14.34 1233 14.79 1256
1248 16.24 1271 16.70 1293
1288 18.32 — — —
— — — — —
— — — — —
— — — — —
— — — — —
0.6
Rpm Bhp
557 2.90
596 3.71
637 4.67
680 5.80
725 7.11
771 8.60
818 10.29
867 12.19
915 14.31
965 16.65
1015 19.23
1040 20.61
1.6
Rpm Bhp
773 4.95
796 5.85
823 6.92
854 8.16
887 9.57
924 11.18
962 12.99
1002 15.00
1044 17.22
1087 19.67
1131 22.35
1154 23.78
2.6
Rpm Bhp
946 7.21
965 8.20
985 9.35
1007 10.66
1033 12.16
1062 13.86
1093 15.76
1127 17.86
1163 20.19
1200 22.74
1240 25.52
1260 27.00
3.6
Rpm Bhp
1089 9.60
1108 10.70
1126 11.94
1145 13.33
1166 14.90
1189 16.67
1215 18.64
1244 20.82
1274 23.23
— —
— —
— —
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.
9
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
4.50 829 4.83 863 5.17
5.45 864 5.81 897 6.18
6.54 902 6.93 934 7.31
7.78 942 8.19 972 8.60
8.46 963 8.88 992 9.30
9.19 984 9.62 1013 10.04
10.78 1029 11.22 1056 11.66
12.55 1076 13.01 1102 13.46
14.51 1124 14.98 1149 15.46
16.66 1174 17.16 1197 17.65
19.02 1225 19.53 1247 20.04
21.58 1276 22.11 1298 22.64
22.94 — — — —
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
7.67 1114 7.97 1138 8.26
8.96 1147 9.29 1170 9.62
10.35 1179 10.71 1203 11.08
11.84 1212 12.24 1235 12.64
12.64 1228 13.05 1251 13.46
13.47 1245 13.89 1268 14.31
15.24 1279 15.69 — —
17.17 — — — —
— — — — —
— — — — —
— — — — —
— — — — —
— — — — —
0.8
Rpm Bhp Rpm
605 3.29 650
639 4.12 680
677 5.11 715
717 6.26 752
759 7.59 792
803 9.11 834
848 10.83 878
895 12.74 922
942 14.88 968
990 17.24 1015
1039 19.85 1062
1064 21.24 1086
1.8
Rpm Bhp Rpm
811 5.39 847
832 6.31 867
857 7.39 890
886 8.64 917
918 10.08 947
952 11.71 980
989 13.53 1016
1028 15.57 1053
1068 17.81 1093
1110 20.28 1133
1153 22.98 1175
1175 24.42 1197
2.8
Rpm Bhp Rpm
977 7.68 1006
995 8.69 1024
1014 9.86 1043
1036 11.19 1064
1061 12.70 1088
1088 14.41 1114
1118 16.32 1143
1151 18.45 1174
1186 20.79 1208
1222 23.36 1244
1261 26.17 1281
1280 27.66 —
3.8
Rpm Bhp Rpm
1115 10.09 1140
1134 11.21 1159
1152 12.47 1177
1171 13.88 1196
1191 15.46 1216
1213 17.24 1237
1238 19.23 1262
1266 21.43 1288
1296 23.85 —
— — —
— — —
— — —
2.0
Rpm Bhp
896 5.49
929 6.54
964 7.70
1002 9.01
1021 9.72
1041 10.47
1083 12.10
1127 13.92
1173 15.93
1220 18.14
1269 20.55
— —
— —
4.0
Rpm Bhp
1161 8.56
1193 9.95
1226 11.44
1258 13.03
1274 13.87
1291 14.73
— —
— —
— —
— —
— —
— —
— —
1.0
Bhp
3.69
4.54
5.55
6.73
8.08
9.63
11.36
13.30
15.46
17.85
20.47
21.87
2.0
Bhp
5.83
6.77
7.87
9.14
10.59
12.24
14.08
16.14
18.40
20.89
23.61
25.07
3.0
Bhp
8.15
9.19
10.37
11.71
13.24
14.97
16.89
19.03
21.40
23.98
26.81
—
4.0
Bhp
10.58
11.73
13.00
14.43
16.03
17.83
19.82
22.04
—
—
—
—