Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 700
II 913
III 1150
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
BIDW-54
100
75
60
50
40
30
25
150 200 250
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
300
400
500
600
0
0 2 4 6 8 10 12 14 16 18 20 22
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
200 100 85 83 80 76 71 66 61 55 78
80 85 83 80 76 71 66 61 55 78
60 84 83 79 76 71 65 60 54 77
50 83 82 79 76 71 65 60 53 77
40 84 82 79 76 71 66 61 55 77
300 100 92 89 86 82 78 72 65 60 84
80 90 86 84 81 77 70 63 57 82
60 86 85 84 81 77 70 63 58 82
50 85 84 83 81 77 70 64 59 82
40 86 84 83 81 77 70 64 59 82
400 100 104 96 90 88 84 78 73 68 90
80 100 92 88 86 81 74 69 65 87
60 98 89 86 85 81 73 70 67 86
50 97 88 85 85 81 74 70 67 86
40 98 89 85 85 81 74 71 68 86
600 100 108 108 101 98 96 91 86 81 101
80 105 105 97 94 91 86 82 78 97
60 102 101 94 90 87 83 80 78 93
50 101 100 93 90 87 83 81 78 93
40 101 99 92 89 86 83 81 79 93
800 100 113 117 109 106 104 101 97 93 110
80 110 115 105 102 98 94 91 87 105
60 106 110 101 97 94 90 88 86 101
50 106 110 101 97 94 90 88 87 101
40 108 110 100 96 93 90 89 87 100
1150 100 119 124 120 114 114 111 107 103 119
80 115 122 117 111 109 104 100 97 115
60 111 118 112 106 104 99 97 95 110
50 112 117 112 106 104 99 97 95 110
40 116 117 112 105 103 99 98 96 110
125
300
Volume (cfm x 10,000)
0 5 10 15 20 25 30 35
3
Volume (m /hr x 10,000)
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
The sound power level ratings shown are in decibels, referred to 10 -12 watts calculated per AMCA Standard 301. Values shown are for inlet Lwi, LwiA and outlet
Lwo, LwoA sound power levels for Installation Type B: free inlet, ducted outlet. Outlet ratings include the effects of duct end correction. The A-weighted sound
ratings shown have been calculated per AMCA International Standard 301.
700
800
50% WOV
350 400
913
1000
60% WOV
1075
1150
70% WOV
Sound Power [dB Ref 10 -12 watts]
80% WOV
90% WOV
43 ®
54 BIDW
% WOV = (CFM X 100) / (RPM X 176)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 200 100 85 80 75 73 67 58 50 41 74
80 84 79 75 72 67 58 49 40 73
60 80 77 73 70 65 56 47 40 71
50 81 77 73 70 65 56 48 40 71
40 80 76 72 70 65 56 48 40 71
300 100 99 89 83 80 76 69 61 55 83
80 95 86 80 78 74 67 59 53 80
60 95 85 78 76 72 65 58 53 78
50 92 83 78 75 72 65 58 54 77
40 91 83 78 76 72 66 59 54 78
400 100 110 97 90 87 83 77 71 64 90
80 107 94 87 84 80 74 68 63 87
60 103 90 83 81 76 71 66 62 84
50 102 89 83 79 76 71 66 62 83
40 103 89 82 79 75 71 67 63 83
600 100 111 108 101 99 95 91 84 78 101
80 108 105 98 95 91 85 79 73 97
60 105 102 94 91 86 81 78 74 93
50 104 100 93 90 85 81 78 74 92
40 105 100 92 89 85 81 78 74 92
800 100 115 117 109 107 105 102 97 91 110
80 112 114 105 103 100 96 91 84 106
60 108 110 101 99 94 90 86 82 101
50 108 109 100 98 93 90 87 82 100
40 108 108 100 97 92 89 87 82 100
1150 100 121 124 119 117 114 112 107 102 120
80 118 121 115 113 110 106 102 95 115
60 115 118 110 109 105 100 96 92 111
50 115 116 109 108 104 99 96 92 110
40 116 115 109 107 103 98 96 92 109