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16
Table 11 — Fan Performance — 48/50N 75-150 Nominal Ton Units Standard Return Fan Data
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
15,000
449
2.09
476
2.54
502
3.02
528
3.52
554
4.04
18,000
528
3.38
551
3.91
574
4.46
596
5.03
618
5.62
21,000
609
5.15
629
5.76
648
6.38
668
7.03
687
7.69
24,000
691
7.49
708
8.17
725
8.87
742
9.59
759
10.32
27,000
773
10.45
789
11.22
804
12.00
819
12.79
834
13.60
30,000
856
14.14
870
14.99
884
15.85
897
16.72
911
17.60
33,000
939
18.64
952
19.56
964
20.49
977
21.44
989
22.40
36,000
1022
24.00
1034
25.01
1045
26.02
1057
27.04
1068
28.09
39,000
1106
30.33
1116
31.41
1127
32.50
1137
33.61
1148
34.73
42,000
1189
37.69
1199
38.86
1209
40.04
1219
41.21
1228
42.42
45,000
1272
46.18
1282
47.42
1291
48.68
1300
49.94
1309
51.22
48,000
1356
55.86
1365
57.19
1373
58.52
1382
59.88
1391
61.23
51,000
1440
66.82
1448
68.24
1456
69.65
1464
71.07
1472
72.51
52,500
1482
72.81
1490
74.26
1497
75.71
1505
77.17
1513
78.65
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
15,000
579
4.59
604
5.15
629
5.73
653
6.32
677
6.94
18,000
639
6.23
661
6.86
682
7.50
703
8.16
723
8.84
21,000
705
8.36
724
9.06
743
9.77
761
10.50
779
11.24
24,000
776
11.07
792
11.84
809
12.62
825
13.41
842
14.22
27,000
849
14.42
864
15.26
879
16.11
894
16.97
908
17.85
30,000
924
18.49
938
19.40
951
20.33
965
21.26
978
22.21
33,000
1001
23.38
1014
24.36
1026
25.36
1038
26.37
1050
27.39
36,000
1079
29.13
1091
30.20
1102
31.27
1113
32.35
1125
33.44
39,000
1158
35.85
1169
37.00
1179
38.14
1190
39.30
1200
40.47
42,000
1238
43.62
1248
44.84
1258
46.06
1268
47.30
1277
48.54
45,000
1318
52.50
1328
53.79
1337
55.10
1346
56.41
1355
57.73
48,000
1399
62.59
1408
63.96
1416
65.35
1425
66.72
1434
68.13
51,000
1480
73.95
1489
75.40
1497
76.86
1505
78.32
1513
79.80
52,500
1521
80.13
1529
81.63
1537
83.12
1545
84.63
1553
86.14
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
15,000
700
7.56
723
8.21
746
8.86
768
9.53
791
10.21
18,000
744
9.53
764
10.24
784
10.96
804
11.69
824
12.44
21,000
797
11.99
815
12.77
833
13.55
851
14.35
868
15.16
24,000
858
15.04
874
15.88
890
16.72
906
17.59
921
18.46
27,000
923
18.74
937
19.64
952
20.56
966
21.48
980
22.43
30,000
991
23.17
1005
24.15
1018
25.13
1031
26.13
1044
27.13
33,000
1063
28.41
1075
29.46
1087
30.52
1099
31.58
1111
32.66
36,000
1136
34.55
1147
35.67
1158
36.79
1169
37.93
1180
39.08
39,000
1211
41.65
1221
42.84
1231
44.04
1242
45.24
1252
46.46
42,000
1287
49.80
1297
51.05
1306
52.33
1316
53.61
1325
54.90
45,000
1364
59.05
1373
60.40
1382
61.74
1391
63.09
1400
64.46
48,000
1442
69.53
1451
70.94
1459
72.37
1468
73.80
1476
75.23
51,000
1521
81.28
1529
82.78
1537
84.28
1545
85.78
1553
87.30
52,500
1560
87.66
1568
89.18
1576
90.72
1584
92.27
1592
93.83
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
15,000
813
10.90
834
11.60
856
12.31
877
13.02
898
13.75
18,000
843
13.19
862
13.96
881
14.74
900
15.53
919
16.34
21,000
886
15.98
903
16.81
920
17.66
937
18.51
954
19.38
24,000
937
19.35
952
20.25
968
21.15
983
22.08
999
23.01
27,000
994
23.38
1009
24.34
1023
25.32
1037
26.30
1050
27.30
30,000
1057
28.15
1070
29.18
1083
30.22
1095
31.27
1108
32.33
33,000
1123
33.74
1135
34.84
1146
35.94
1158
37.06
1170
38.19
36,000
1191
40.23
1202
41.39
1213
42.57
1224
43.76
1235
44.95
39,000
1262
47.68
1273
48.93
1283
50.18
1293
51.42
1303
52.69
42,000
1335
56.21
1344
57.51
1354
58.82
1364
60.16
1373
61.48
45,000
1409
65.83
1418
67.22
1427
68.61
1436
70.02
1445
71.42
48,000
1484
76.69
1493
78.13
1501
79.59
1510
81.07
1518
82.55
51,000
1561
88.80
1569
90.34
1577
91.89
1585
93.43
1593
94.97
52,500
1599
95.40
1607
96.95
1615
98.52
1623
100.12
1630
101.70
Summary of Contents for WeatherExpert 48N2
Page 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Page 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Page 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Page 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Page 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Page 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Page 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Page 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Page 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Page 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Page 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Page 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Page 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...