Carrier WEATHERMAKER 48/50AJ Operation And Service Manual page 17

Table 21 — Fan Performance — 48AW,AY020,025 and 48A4,A5020 Units
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 339 0.71 414
5,000 384 1.10 452
6,000 433 1.61 494
7,000 484 2.27 540
7,500 511 2.66 563
8,000 538 3.09 588
9,000 593 4.07 639
10,000 649 5.23 691
11,000 706 6.58 744
12,000 763 8.12 799
12,500 792 8.97 827
13,000 821 9.87 855
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 820 3.68 852
5,000 844 4.28 877
6,000 869 4.96 901
7,000 895 5.74 926
7,500 909 6.18 940
8,000 925 6.66 955
9,000 957 7.72 986
10,000 993 8.96 1021
11,000 1031 10.37 1058
12,000 1071 11.97 1097
12,500 1092 12.85 1118
13,000 1113 13.78 1139
Table 22 — Fan Performance — 48AW,AY027,030 and 48A4,A5025-030 Units
AIRFLOW
0.2 0.4
(CFM)
Rpm Bhp Rpm
4,000 342 0.72 417
5,000 389 1.11 456
6,000 439 1.64 499
7,000 492 2.31 546
8,000 546 3.14 596
9,000 602 4.13 647
10,000 659 5.31 701
11,000 717 6.67 755
12,000 775 8.23 811
13,000 834 9.99 867
14,000 893 11.97 924
15,000 953 14.17 982
AIRFLOW
2.2 2.4
(CFM)
Rpm Bhp Rpm
4,000 821 3.69 853
5,000 846 4.31 879
6,000 872 5.00 903
7,000 899 5.79 930
8,000 930 6.72 960
9,000 963 7.80 992
10,000 1000 9.06 1028
11,000 1039 10.49 1066
12,000 1080 12.12 1106
13,000 1123 13.95 1148
14,000 1168 15.99 1192
15,000 — — —
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.
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.97 478 1.25 534 1.54
1.37 510 1.66 563 1.96
1.89 548 2.19 597 2.51
2.56 590 2.87 636 3.19
2.95 612 3.26 656 3.59
3.38 634 3.70 678 4.03
4.37 682 4.69 722 5.03
5.54 731 5.87 769 6.21
6.89 782 7.23 817 7.58
8.45 834 8.79 867 9.14
9.30 860 9.64 893 10.00
10.20 887 10.55 918 10.91
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
3.99 883 4.30 912 4.62
4.63 907 4.97 937 5.31
5.33 931 5.70 961 6.07
6.13 956 6.52 986 6.91
6.57 970 6.97 999 7.37
7.06 984 7.46 1013 7.87
8.13 1015 8.55 1042 8.97
9.38 1048 9.80 1075 10.23
10.80 1084 11.23 1110 11.67
12.41 1123 12.85 1148 13.30
13.29 1143 13.74 1167 14.19
14.22 1163 14.67 — —
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.6 0.8
Bhp Rpm Bhp Rpm Bhp
0.98 480 1.26 536 1.55
1.38 514 1.68 566 1.98
1.92 553 2.22 602 2.54
2.60 596 2.91 641 3.24
3.43 642 3.75 684 4.09
4.43 690 4.76 730 5.10
5.62 740 5.95 777 6.30
6.99 792 7.33 827 7.68
8.56 845 8.90 878 9.27
10.33 899 10.68 930 11.05
12.32 954 12.68 983 13.06
14.53 1010 14.90 1037 15.28
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
2.6 2.8
Bhp Rpm Bhp Rpm Bhp
4.00 884 4.31 913 4.63
4.65 909 4.99 939 5.34
5.36 934 5.73 964 6.10
6.18 960 6.57 989 6.96
7.12 989 7.53 1017 7.94
8.22 1020 8.63 1048 9.06
9.48 1055 9.91 1081 10.34
10.92 1092 11.36 1117 11.80
12.56 1131 13.00 1156 13.45
14.39 1172 14.84 1196 15.30
16.44 — — — —
— — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
585 1.84 631 2.14 674
611 2.28 656 2.60 698
643 2.84 686 3.18 726
679 3.53 719 3.88 757
698 3.94 737 4.29 775
718 4.38 756 4.74 793
760 5.39 796 5.76 831
805 6.58 839 6.95 872
851 7.95 884 8.33 915
899 9.52 930 9.90 960
924 10.38 954 10.77 983
949 11.29 978 11.68 1007
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
940 4.93 967 5.25 993
966 5.66 993 6.01 1020
990 6.44 1017 6.81 1044
1014 7.30 1042 7.70 1068
1027 7.78 1054 8.18 1081
1040 8.28 1067 8.69 1094
1069 9.39 1096 9.82 1121
1101 10.67 1126 11.11 1151
1135 12.12 1160 12.56 1184
1172 13.75 1196 14.21 —
1191 14.64 — — —
— — — — —
1.0 1.2
Rpm Bhp Rpm Bhp Rpm
587 1.85 633 2.15 676
614 2.30 659 2.62 701
647 2.87 689 3.21 730
684 3.58 724 3.93 762
724 4.44 762 4.80 798
768 5.46 803 5.83 838
813 6.67 847 7.04 880
860 8.06 893 8.44 924
909 9.64 940 10.03 970
960 11.44 989 11.83 1017
1012 13.44 1039 13.85 1066
1064 15.68 1091 16.08 1116
3.0 3.2
Rpm Bhp Rpm Bhp Rpm
941 4.95 968 5.26 994
968 5.68 995 6.03 1022
992 6.48 1020 6.85 1047
1018 7.36 1045 7.75 1072
1045 8.35 1072 8.76 1098
1075 9.48 1101 9.91 1126
1107 10.77 1133 11.22 1157
1142 12.24 1167 12.69 1191
1180 13.90 — — —
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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.
17
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.44 714 2.75 751 3.06
2.93 738 3.27 775 3.60
3.52 764 3.88 800 4.23
4.24 794 4.61 829 4.98
4.66 810 5.03 845 5.41
5.11 827 5.49 861 5.87
6.13 864 6.52 896 6.91
7.34 904 7.73 934 8.13
8.72 945 9.12 975 9.53
10.30 989 10.71 1017 11.12
11.16 1012 11.57 1039 11.99
12.08 1034 12.49 1062 12.92
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
5.57 1019 5.89 1043 6.21
6.35 1046 6.70 1071 7.05
7.19 1070 7.57 1096 7.94
8.10 1094 8.50 1120 8.90
8.59 1107 9.00 1132 9.41
9.11 1119 9.53 1144 9.95
10.25 1146 10.69 1171 11.12
11.55 1176 12.00 1200 12.45
13.02 — — — —
— — — — —
— — — — —
— — — — —
1.4 1.6 1.8
Bhp Rpm Bhp Rpm Bhp
2.45 715 2.76 753 3.07
2.95 740 3.29 777 3.62
3.56 768 3.91 804 4.27
4.29 798 4.66 833 5.03
5.17 833 5.55 866 5.93
6.21 871 6.60 903 7.00
7.43 911 7.83 942 8.23
8.83 954 9.24 983 9.65
10.43 999 10.84 1026 11.26
12.24 1045 12.65 1072 13.08
14.26 1093 14.68 1118 15.11
16.50 1142 16.93 1166 17.36
3.4 3.6 3.8
Bhp Rpm Bhp Rpm Bhp
5.58 1020 5.90 1044 6.22
6.38 1048 6.73 1073 7.08
7.22 1073 7.60 1098 7.98
8.15 1098 8.55 1123 8.95
9.18 1124 9.60 1148 10.02
10.34 1151 10.78 1176 11.21
11.66 1182 12.11 — —
13.15 — — — —
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2.0
Rpm Bhp
787 3.37
811 3.94
835 4.60
863 5.36
877 5.79
893 6.26
927 7.32
964 8.54
1003 9.95
1045 11.54
1066 12.42
1088 13.35
4.0
Rpm Bhp
1067 6.53
1095 7.40
1121 8.32
1145 9.30
1157 9.82
1169 10.37
1195 11.56
— —
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— —
— —
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2.0
Rpm Bhp
788 3.38
813 3.96
838 4.63
867 5.41
898 6.32
933 7.40
971 8.64
1011 10.07
1054 11.69
1098 13.51
1143 15.54
1190 17.80
4.0
Rpm Bhp
1068 6.55
1097 7.43
1123 8.36
1148 9.35
1173 10.44
1200 11.65
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