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Table 6 — Fan Performance — 48/50N 105 Nominal Ton Units High-Static Supply Fan Data
LEGEND
Bhp —
Brake Horsepower
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
21,000
441
4.97
466
5.77
491
6.61
516
7.49
540
8.41
25,000
497
6.95
519
7.83
541
8.75
563
9.69
584
10.67
27,000
534
8.54
555
9.47
576
10.43
596
11.42
616
12.44
29,000
572
10.35
592
11.33
611
12.34
630
13.38
649
14.44
31,000
610
12.41
629
13.44
647
14.50
664
15.58
682
16.69
33,000
649
14.72
666
15.80
683
16.91
699
18.03
716
19.18
35,000
687
17.30
703
18.43
719
19.58
735
20.75
751
21.95
37,000
726
20.16
741
21.34
756
22.53
771
23.75
786
25.00
39,000
764
23.31
779
24.54
793
25.79
807
27.06
822
28.34
41,000
803
26.78
817
28.05
831
29.35
844
30.65
858
31.99
42,000
842
30.56
855
31.89
868
33.22
881
34.59
894
35.96
44,000
881
34.68
893
36.06
906
37.44
918
38.84
930
40.26
46,000
920
39.14
932
40.56
944
41.99
956
43.45
967
44.91
48,000
959
43.97
970
45.43
982
46.91
993
48.41
1004
49.92
52,500
1047
56.20
1057
57.78
1068
59.35
1078
60.95
1088
62.57
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
21,000
563
9.35
587
10.33
609
11.34
632
12.38
654
13.44
25,000
606
11.67
627
12.71
647
13.77
667
14.86
688
15.97
27,000
636
13.49
655
14.56
675
15.66
694
16.78
713
17.93
29,000
667
15.53
685
16.64
704
17.78
722
18.94
739
20.12
31,000
699
17.81
717
18.97
734
20.15
751
21.34
768
22.57
33,000
732
20.35
749
21.55
765
22.77
781
24.01
797
25.27
35,000
766
23.16
782
24.41
797
25.66
812
26.94
827
28.24
37,000
801
26.25
815
27.54
830
28.84
844
30.16
859
31.49
39,000
836
29.65
850
30.97
863
32.31
877
33.67
891
35.05
41,000
871
33.34
884
34.71
897
36.09
911
37.49
924
38.91
42,000
907
37.35
919
38.76
932
40.19
945
41.64
957
43.09
44,000
943
41.70
955
43.15
967
44.62
979
46.11
991
47.61
46,000
979
46.40
991
47.89
1002
49.41
1014
50.92
1025
52.48
48,000
1016
51.44
1027
52.99
1038
54.54
1049
56.12
1060
57.69
52,500
1099
64.19
1109
65.82
1119
67.48
1129
69.14
1140
70.82
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
21,000
676
14.53
697
15.65
719
16.79
739
17.96
760
19.16
25,000
707
17.11
727
18.27
746
19.46
765
20.67
784
21.90
27,000
731
19.11
750
20.30
768
21.52
786
22.76
804
24.02
29,000
757
21.34
774
22.56
792
23.82
809
25.09
826
26.38
31,000
784
23.81
801
25.07
817
26.36
833
27.66
849
29.00
33,000
813
26.55
828
27.85
844
29.17
859
30.51
875
31.87
35,000
842
29.56
857
30.90
872
32.26
887
33.63
901
35.02
37,000
873
32.85
887
34.22
901
35.62
915
37.03
929
38.46
39,000
905
36.44
918
37.86
932
39.28
945
40.73
958
42.21
41,000
937
40.34
950
41.80
963
43.27
975
44.75
988
46.26
42,000
970
44.57
982
46.06
994
47.56
1007
49.09
1019
50.63
44,000
1003
49.13
1015
50.66
1027
52.20
1039
53.76
1050
55.34
46,000
1037
54.03
1048
55.60
1060
57.19
1071
58.78
1082
60.40
48,000
1071
59.29
1082
60.91
1093
62.54
1104
64.17
1115
65.83
52,500
1150
72.51
1160
74.21
1170
75.93
1180
77.66
1190
79.39
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
21,000
780
20.37
801
21.61
820
22.87
840
24.14
859
25.45
25,000
803
23.16
822
24.44
840
25.73
858
27.05
876
28.38
27,000
822
25.30
839
26.61
857
27.94
874
29.28
891
30.64
29,000
843
27.69
859
29.02
876
30.38
892
31.75
908
33.14
31,000
865
30.33
881
31.70
897
33.08
913
34.48
928
35.90
33,000
890
33.25
905
34.64
920
36.06
935
37.49
950
38.93
35,000
916
36.43
930
37.86
945
39.31
959
40.77
973
42.25
37,000
943
39.90
957
41.37
971
42.85
984
44.34
998
45.85
39,000
972
43.68
985
45.18
998
46.69
1011
48.20
1024
49.76
41,000
1001
47.76
1014
49.30
1026
50.84
1039
52.41
1051
53.99
42,000
1031
52.18
1043
53.76
1055
55.33
1067
56.93
1079
58.54
44,000
1062
56.93
1074
58.53
1085
60.15
1097
61.79
1108
63.44
46,000
1094
62.03
1105
63.67
1116
65.33
1127
67.00
1138
68.68
48,000
1126
67.49
1137
69.17
1147
70.87
1158
72.57
1169
74.29
52,500
1200
81.15
1210
82.92
1220
84.69
1230
86.47
1240
88.28
Содержание WeatherExpert 48N2
Страница 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Страница 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Страница 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Страница 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Страница 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Страница 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Страница 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Страница 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Страница 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Страница 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Страница 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Страница 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Страница 168: ...168 Fig 47 Sensor and Ignition Position Fig 48 Combustion Blower Details SENSOR DETAILS IGNITION DETAILS ...
Страница 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...