Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
40
35
30
25
20
15
10
5
0
Class Max RPM
I 1761
II 2294
III 2892
Static Pressure (in. wg)
18
16
14
12
10
8
6
4
2
BIDW-22
30
25
20
15
10
7½
5
3
2
1½
40
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
700
1000
50 60
1200
1500
0
0 4 8 12 16 20 24 28 32 36
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
500 100 80 76 76 78 69 62 57 52 77
80 78 74 73 75 67 60 55 51 74
60 77 71 72 76 67 60 55 51 74
50 77 70 72 76 67 60 55 51 75
40 76 70 71 76 67 60 54 51 75
700 100 82 90 83 81 75 71 63 60 83
80 81 88 80 77 71 66 58 53 79
60 78 82 76 76 71 66 59 54 77
50 77 79 75 75 71 66 59 54 76
40 77 78 74 76 70 66 59 54 76
1000 100 87 94 92 90 86 82 75 70 91
80 85 90 89 87 82 77 70 65 88
60 84 86 85 84 80 76 70 66 85
50 81 85 83 83 79 76 70 66 85
40 81 85 83 83 79 76 71 67 85
1400 100 91 95 98 95 92 88 83 77 97
80 89 92 96 93 90 85 79 75 95
60 87 89 93 89 86 82 77 74 91
50 87 89 91 88 85 82 78 75 90
40 88 89 90 87 85 81 78 75 90
2000 100 99 101 105 106 99 96 92 88 106
80 97 99 102 103 96 93 88 85 103
60 93 95 99 99 94 91 87 85 100
50 94 95 98 98 93 91 87 85 99
40 96 97 99 98 93 91 89 87 100
2892 100 107 109 111 115 110 106 102 98 116
80 105 107 108 112 107 103 98 95 113
60 101 103 106 108 104 101 97 94 110
50 103 103 107 107 103 100 97 94 109
40 105 105 107 107 103 100 98 96 109
Volume (cfm x 1000)
0 10 20 30 40 50 60
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.
1761
2000
50% WOV
2294
2500
60% WOV
Sound Power [dB Ref 10 -12 watts]
75
2700
2892
70% WOV
80% WOV
90% WOV
25 ®
22 BIDW
% WOV = (CFM X 100) / (RPM X 11.8)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 500 100 92 79 75 69 67 59 52 48 73
80 92 78 72 65 64 54 48 46 71
60 84 74 68 64 62 54 48 46 68
50 83 73 68 64 63 54 49 46 67
40 84 74 68 64 63 54 49 46 68
700 100 94 93 82 77 76 69 62 56 82
80 91 90 80 73 70 63 56 52 79
60 87 83 76 72 68 62 57 53 75
50 86 81 74 71 68 62 57 54 74
40 88 81 73 71 67 61 57 54 73
1000 100 100 95 91 87 86 81 74 67 90
80 96 93 89 84 81 74 67 61 87
60 92 89 84 79 78 72 66 62 83
50 92 88 82 78 77 71 66 62 82
40 92 88 81 77 76 71 67 63 81
1400 100 104 98 98 94 93 89 83 76 97
80 101 96 96 92 91 86 80 72 95
60 98 92 92 88 87 82 76 72 91
50 98 93 91 87 85 81 76 72 90
40 99 93 91 86 84 80 76 72 89
2000 100 110 106 108 110 102 98 94 88 109
80 107 102 104 105 99 94 89 83 105
60 103 98 98 100 96 91 86 81 101
50 104 98 97 98 94 90 86 81 99
40 107 101 96 96 93 89 86 82 98
2892 100 119 115 114 119 113 108 104 99 119
80 116 112 110 115 110 104 100 94 115
60 112 108 105 108 106 102 97 92 110
50 113 109 105 106 104 100 96 92 109
40 117 112 106 104 103 99 96 92 108