Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
30
25
20
15
10
5
0
Class Max RPM
I 2617
II 3413
III 3900
Static Pressure (in. wg)
14
12
10
8
6
4
2
BIDW-15
2
1½
1
¾
10 15
3
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
1100
1500
1900
0
0 2 4 6 8 10 12 14 16
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
800 100 74 79 77 76 73 68 61 55 78
80 74 79 77 76 72 68 60 54 77
60 72 73 76 76 72 67 60 54 77
50 73 73 77 76 72 67 60 54 77
40 72 74 76 75 72 67 60 54 77
1100 100 78 82 82 78 75 73 67 59 81
80 76 81 81 76 73 70 63 55 79
60 75 78 77 75 72 69 63 56 77
50 75 78 76 75 72 69 64 56 77
40 76 78 75 75 73 69 64 56 77
1600 100 87 87 90 88 83 80 78 70 89
80 85 84 88 86 80 77 72 64 87
60 84 82 84 86 79 75 71 66 86
50 86 85 84 85 79 75 72 67 85
40 87 84 84 85 80 75 72 67 86
2200 100 96 97 95 99 94 91 90 89 100
80 95 97 93 98 92 87 86 80 98
60 93 94 90 94 89 85 83 78 95
50 92 93 90 93 89 85 83 79 94
40 93 92 90 93 89 85 83 79 94
3100 100 101 99 99 105 100 96 96 97 106
80 98 96 97 103 97 93 91 88 103
60 94 96 95 99 94 91 89 86 100
50 95 98 96 99 94 91 89 87 100
40 95 99 97 100 94 91 90 87 101
3900 100 106 106 104 109 106 102 101 101 111
80 103 103 102 106 103 98 96 94 108
60 99 102 101 103 101 96 94 92 105
50 99 104 102 103 100 96 94 92 105
40 99 104 103 105 101 97 95 92 106
7½
5
2300
Volume (cfm x 1000)
0 5 10 15 20 25
3
Volume (m /hr x 1000)
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.
20
2617
50% WOV
3000
3413
3700
60% WOV
Sound Power [dB Ref 10 -12 watts]
25
3900
70% WOV
80% WOV
90% WOV
17 ®
15 BIDW
% WOV = (CFM X 100) / (RPM X 3.82)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 800 100 91 85 77 67 70 65 54 47 75
80 90 81 77 65 69 63 53 46 74
60 87 77 76 64 68 62 53 46 73
50 89 78 76 65 69 62 54 47 73
40 91 80 76 65 69 62 54 47 74
1100 100 94 84 83 75 74 72 64 54 80
80 92 83 81 73 72 68 59 51 78
60 91 82 80 71 71 66 59 52 77
50 93 82 81 70 71 66 60 53 77
40 95 83 81 70 71 66 60 53 78
1600 100 101 91 95 84 82 81 76 67 90
80 98 89 93 82 80 77 70 61 87
60 98 89 92 80 78 74 69 63 86
50 100 88 89 79 78 74 69 64 85
40 102 91 90 80 78 74 69 64 86
2200 100 105 97 96 96 90 89 86 82 97
80 103 94 93 93 87 85 80 72 94
60 103 92 91 91 85 82 77 72 92
50 104 94 92 92 84 81 77 73 92
40 105 96 93 91 84 81 77 73 92
3100 100 112 104 103 106 100 98 95 94 106
80 111 101 100 102 97 95 90 86 103
60 109 99 98 98 94 91 87 83 100
50 110 101 99 98 93 91 87 83 100
40 111 104 101 98 93 90 87 84 100
3900 100 117 111 108 110 106 103 100 99 112
80 116 108 105 107 103 101 96 92 109
60 114 106 103 103 100 97 93 89 105
50 115 108 104 103 99 96 93 89 105
40 116 111 106 103 99 96 93 89 106