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Table 18 — DIP Switch Factory Settings
*On 48EJ,EW,AJ,AW units equipped with staged gas option, DIP switch 7 should be closed.
Table 19 — Fan Performance, 48AJ,AK020-030 — Vertical Discharge Units
LEGEND
Bhp — Brake Horsepower
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. Per-
formance at 70 cfm/ton is limited to unloaded operation and
may be additionally limited by edb (entering dry bulb) and ewb
(entering wet bulb) conditions.
UNIT 12345678
48AJ,AW and 48EJ,EW Closed Closed Closed Closed Closed Closed Open* Closed
48AK,AY and 48EK,EY Open Closed Closed Closed Closed Closed Open Closed
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.20.40.60.81.01.21.41.6
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
4,000 394 1.06 416 1.17 481 1.53 538 1.91 590 2.30 637 2.71 680 3.12 721 3.55
5,000 388 1.26 453 1.61 512 1.99 566 2.39 616 2.80 662 3.23 704 3.66 745 4.11
6,000 433 1.80 495 2.18 549 2.58 600 3.00 646 3.43 690 3.87 731 4.32 770 4.79
7,000 484 2.49 540 2.91 591 3.33 637 3.76 681 4.21 722 4.66 761 5.13 799 5.61
8,000 537 3.34 589 3.79 635 4.23 678 4.69 719 5.15 758 5.62 795 6.10 831 6.59
9,000 590 4.35 638 4.83 682 5.31 723 5.78 761 6.26 798 6.75 833 7.24 867 7.75
10,000 645 5.53 690 6.05 731 6.56 769 7.05 805 7.55 840 8.06 873 8.57 905 9.09
11,000 700 6.90 742 7.46 781 7.99 817 8.51 851 9.04 884 9.56 916 10.09 946 10.62
12,000 755 8.46 795 9.05 832 9.61 866 10.17 899 10.71 930 11.26 960 11.81 989 12.36
13,000 811 10.23 849 10.85 884 11.44 917 12.02 948 12.59 978 13.16 1006 13.73 1034 14.30
14,000 868 12.20 904 12.86 937 13.48 968 14.08 998 14.68 1026 15.27 1054 15.86 1081 16.45
15,000 924 14.40 959 15.08 990 15.73 1020 16.37 1049 16.99 1076 17.61 1103 18.22 1128 18.83
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.82.02.22.42.62.83.03.2
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
4,000 759 3.97 795 4.40 829 4.84 862 5.29 893 5.73 923 6.18 952 6.64 980 7.09
5,000 782 4.56 818 5.02 853 5.49 885 5.96 917 6.43 947 6.91 976 7.39 1004 7.88
6,000 807 5.26 843 5.74 876 6.23 909 6.72 940 7.22 970 7.72 999 8.23 1028 8.74
7,000 835 6.09 869 6.59 902 7.09 934 7.60 965 8.12 994 8.64 1023 9.17 1051 9.70
8,000 865 7.09 898 7.60 930 8.12 961 8.64 991 9.17 1020 9.71 1049 10.25 1076 10.80
9,000 899 8.26 931 8.78 962 9.31 992 9.84 1021 10.39 1049 10.94 1076 11.49 1103 12.05
10,000 936 9.61 967 10.15 996 10.69 1025 11.24 1053 11.79 1080 12.35 1107 12.92 1133 13.49
11,000 976 11.16 1005 11.71 1033 12.26 1060 12.82 1087 13.39 1114 13.96 1139 14.54 1165 15.12
12,000 1018 12.91 1045 13.47 1072 14.04 1099 14.61 1125 15.19 1150 15.77 1175 16.36 1199 16.96
13,000 1061 14.87 1088 15.45 1114 16.03 1139 16.62 1164 17.21 1188 17.80 — — — —
14,000 1107 17.05 1132 17.64 1157 18.23 1181 18.84 — — — — — — — —
15,000 1153 19.44 1178 20.05 — — ——————————
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.43.63.84.0
Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp
4,000 1007 7.55 1033 8.02 1058 8.48 1083 8.95
5,000 1032 8.37 1058 8.86 1084 9.36 1109 9.86
6,000 1055 9.25 1081 9.77 1107 10.29 1132 10.82
7,000 1078 10.23 1105 10.77 1131 11.32 1156 11.86
8,000 1103 11.35 1129 11.90 1155 12.47 1180 13.03
9,000 1130 12.62 1155 13.19 1180 13.76 — —
10,000 1158 14.07 1183 14.65 — — — —
11,000 118915.71——————
12,000 ————————
13,000 ————————
14,000 ————————
15,000 ————————
Watts =
Bhp x 746
Motor Efficiency