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73
Table 27 — Fan Performance, 48EJ,EK024,034 — Vertical Discharge Units
(For EW,EY units, reduce net available external static pressure by 0.3 in. wg)
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.
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
340
0.83
416
1.17
480
1.52
537
1.90
588
2.29
635
2.69
679
3.11
720
3.53
5,000
384
1.25
453
1.61
513
1.99
566
2.39
615
2.79
660
3.21
703
3.64
742
4.08
6,000
432
1.79
495
2.19
550
2.59
600
3.01
647
3.43
690
3.87
730
4.31
769
4.77
7,000
483
2.48
540
2.91
591
3.33
638
3.77
682
4.22
723
4.67
762
5.14
799
5.61
8,000
536
3.33
588
3.78
635
4.23
679
4.69
720
5.16
759
5.64
797
6.12
832
6.61
8,250
549
3.57
600
4.02
646
4.48
690
4.95
730
5.42
769
5.90
806
6.39
841
6.88
9,000
590
4.34
637
4.82
681
5.30
722
5.78
762
6.27
799
6.77
834
7.27
868
7.77
10,000
645
5.54
689
6.04
729
6.54
768
7.04
805
7.56
840
8.07
874
8.59
906
9.12
11,000
701
6.92
741
7.44
779
7.96
816
8.49
850
9.03
884
9.56
916
10.10
947
10.65
12,000
757
8.49
795
9.04
830
9.59
865
10.14
898
10.69
929
11.25
960
11.81
990
12.37
12,500
786
9.36
822
9.92
856
10.47
890
11.03
922
11.60
953
12.16
983
12.73
1012
13.31
13,000
814
10.28
849
10.84
883
11.41
915
11.98
946
12.56
976
13.13
1006
13.71
1034
14.30
13,750
857
11.75
890
12.34
922
12.92
953
13.51
983
14.10
1012
14.69
1041
15.28
1068
15.88
14,000
871
12.27
904
12.86
936
13.45
966
14.05
996
14.64
1025
15.23
1053
15.83
1080
16.43
15,000
929
14.50
960
15.10
990
15.71
1019
16.33
1047
16.94
1074
17.55
1101
18.17
1127
18.79
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
759
3.97
796
4.42
831
4.87
865
5.34
897
5.81
929
6.30
959
6.79
988
7.28
5,000
780
4.53
816
4.99
851
5.45
884
5.93
916
6.41
946
6.90
976
7.40
1005
7.91
6,000
805
5.23
840
5.70
874
6.18
906
6.67
937
7.16
968
7.66
997
8.17
1025
8.69
7,000
834
6.09
868
6.57
901
7.07
932
7.56
962
8.07
992
8.58
1020
9.10
1048
9.63
8,000
866
7.10
899
7.60
930
8.11
961
8.62
990
9.14
1019
9.67
1047
10.20
1074
10.74
8,250
874
7.38
907
7.89
938
8.40
968
8.92
998
9.44
1026
9.97
1054
10.50
1081
11.04
9,000
901
8.29
932
8.80
963
9.33
992
9.86
1021
10.39
1049
10.93
1076
11.48
1102
12.03
10,000
938
9.65
968
10.18
997
10.72
1026
11.27
1054
11.82
1081
12.37
1107
12.93
1133
13.49
11,000
977
11.19
1006
11.75
1035
12.30
1062
12.87
1089
13.43
1115
14.00
1141
14.57
1166
15.15
12,000
1019
12.94
1047
13.51
1074
14.08
1100
14.66
1126
15.24
1152
15.83
1177
16.42
1201
17.01
12,500
1040
13.88
1067
14.46
1094
15.05
1120
15.63
1146
16.22
1171
16.82
1195
17.41
—
—
13,000
1062
14.88
1089
15.47
1115
16.06
1140
16.66
1166
17.25
1190
17.86
—
—
—
—
13,750
1095
16.48
1121
17.08
1147
17.68
1172
18.29
1196
18.90
—
—
—
—
—
—
14,000
1106
17.04
1132
17.64
1157
18.25
1182
18.86
—
—
—
—
—
—
—
—
15,000
1152
19.41
1177
20.04
1200
20.66
—
—
—
—
—
—
—
—
—
—
AIRFLOW
(Cfm)
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
3.4
3.6
3.8
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
4,000
1017
7.79
1045
8.30
1072
8.82
5,000
1033
8.42
1061
8.94
1087
9.46
6,000
1053
9.21
1080
9.73
1106
10.27
7,000
1075
10.16
1102
10.69
1127
11.24
8,000
1100
11.28
1126
11.83
1151
12.38
8,250
1107
11.59
1133
12.14
1158
12.69
9,000
1128
12.58
1153
13.14
1178
13.70
10,000
1158
14.06
1183
14.63
—
—
11,000
1190
15.74
—
—
—
—
12,000
—
—
—
—
—
—
12,500
—
—
—
—
—
—
13,000
—
—
—
—
—
—
13,750
—
—
—
—
—
—
14,000
—
—
—
—
—
—
15,000
—
—
—
—
—
—
Watts =
Bhp x 746
Motor Efficiency
Summary of Contents for WEATHERMAKER 48AJ020
Page 3: ...3 Fig 1 Roof Curb 48AJ AK020 030 and 48EJ EK024 034 Units ...
Page 4: ...4 Fig 2 Roof Curb 48AJ AK034 050 and 48EJ EK038 048 Units ...
Page 5: ...5 Fig 3 Roof Curb 48AJ AK060 and 48EJ EK054 068 Units ...
Page 97: ...97 Fig 78 Typical 48EK VAV 24 V Control Circuit ...
Page 99: ...99 Fig 80 Typical 48EK VAV 115 V Control Circuit ...
Page 100: ...100 Fig 81 Typical 48EJ CV 115 V Control Circuit ...
Page 101: ...101 Fig 82 Label Diagram Staged Gas Heat 48AJ AK AW AY020 050 and 48EJ EK EW EY024 048 Units ...
Page 102: ...102 Fig 83 Label Diagram Staged Gas Heat 48AJ AK AW AY060 and 48EJ EK EW EY054 068 Units ...