Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 1163
II 1517
III 1911
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
BIDW-33
60 75 100
50
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 1 2 3 4 5 6 7 8
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
350 100 86 83 80 73 68 61 55 52 76
80 85 82 77 70 66 58 54 51 73
60 82 81 75 70 66 58 54 52 72
50 82 80 73 70 66 58 54 52 72
40 82 80 72 70 66 58 54 52 72
500 100 94 87 83 78 76 69 62 59 81
80 93 85 81 77 74 67 61 58 79
60 90 82 79 75 72 65 60 58 78
50 89 81 78 75 72 65 61 58 77
40 87 80 77 74 72 66 61 59 77
700 100 95 96 91 87 84 80 75 71 90
80 92 93 88 85 81 76 72 71 87
60 90 90 86 84 79 75 73 72 86
50 89 89 85 84 79 75 73 72 86
40 91 88 84 84 79 76 74 72 85
1000 100 99 101 102 96 92 90 86 82 99
80 95 98 99 92 89 86 83 80 96
60 93 94 94 89 86 83 82 80 93
50 94 93 93 88 86 83 82 81 92
40 94 92 92 88 86 83 82 81 92
1400 100 105 106 113 104 101 100 96 90 108
80 103 102 108 101 97 94 90 86 104
60 98 99 104 97 95 91 88 86 101
50 99 98 103 96 94 91 89 87 100
40 101 99 101 95 93 91 90 88 99
1911 100 113 111 120 114 109 107 105 99 117
80 111 108 116 110 106 103 99 95 113
60 107 104 111 106 103 99 96 94 109
50 107 104 110 105 102 99 97 95 108
40 110 106 108 104 101 98 97 95 107
40
30
25
20
15
10
7½
5
3
500
700
850
1000
Volume (cfm x 10,000)
0 2 4 6 8 10 12
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.
1163
50% WOV
125 150
1350
1517
1650
60% WOV
Sound Power [dB Ref 10 -12 watts]
1800
1911
70% WOV
80% WOV
90% WOV
33 ®
33 BIDW
% WOV = (CFM X 100) / (RPM X 40.4)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 350 100 85 83 77 73 68 58 51 47 75
80 82 80 75 70 63 53 48 46 72
60 77 75 70 69 62 53 49 47 70
50 78 75 68 69 62 54 50 47 69
40 81 77 69 68 64 55 50 47 70
500 100 101 92 82 79 77 69 61 54 83
80 101 91 80 76 72 63 56 51 81
60 94 84 76 74 70 62 58 54 77
50 91 82 74 73 70 63 59 55 75
40 92 83 73 72 70 63 59 55 75
700 100 98 99 89 86 84 79 72 64 90
80 95 96 86 83 80 74 68 62 86
60 92 92 82 79 77 71 67 64 83
50 92 89 81 78 76 70 67 64 81
40 94 90 81 78 76 72 68 65 82
1000 100 103 103 102 97 94 90 85 77 100
80 99 100 98 93 90 84 79 72 96
60 96 97 95 89 85 81 77 74 92
50 96 96 94 87 84 80 77 74 91
40 98 95 92 86 84 80 78 75 90
1400 100 110 109 108 106 104 101 96 88 109
80 107 105 105 102 99 95 90 83 104
60 103 102 102 98 95 90 87 82 101
50 103 102 100 97 94 89 87 82 99
40 107 103 98 94 92 88 87 84 98
1911 100 117 116 116 114 112 109 106 98 117
80 114 112 113 110 108 103 99 93 113
60 110 109 110 106 104 99 95 91 109
50 110 109 108 105 102 98 95 91 107
40 114 111 106 102 100 96 95 92 106