Single-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
60
50
40
30
20
10
0
Class Max RPM
I 1163
II 1517
III 1911
IV 2302
Static Pressure (in. wg)
25
20
15
10
5
BISW-33
20
3
50 60 75
1000
850
700
1163
1350
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
1517
0
0 10 20 30 40 50 60
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
350 100 85 78 73 65 60 52 45 39 69
80 78 70 65 58 53 46 39 34 62
60 76 66 61 56 52 44 38 32 59
50 74 65 61 57 54 46 40 34 60
40 74 64 60 57 54 46 40 33 59
700 100 92 92 88 83 80 74 65 60 86
80 89 90 85 80 76 70 64 58 83
60 89 90 83 79 75 70 66 62 82
50 88 87 82 78 75 71 67 63 81
40 89 86 81 78 75 71 68 64 81
1000 100 95 98 99 92 89 86 78 71 95
80 92 95 96 88 84 81 75 70 92
60 91 92 93 86 82 80 76 73 89
50 91 91 91 84 82 79 77 74 88
40 91 93 93 85 82 80 77 74 89
1400 100 100 103 106 100 98 98 92 82 104
80 96 99 103 95 93 91 86 79 99
60 95 95 99 92 90 89 86 83 96
50 96 96 99 90 89 88 87 84 96
40 100 100 101 92 90 89 87 85 97
1911 100 110 107 115 108 104 106 103 93 112
80 107 102 112 104 100 99 96 89 108
60 107 98 108 99 97 96 94 91 104
50 108 100 109 98 96 95 95 92 104
40 110 105 110 100 97 96 95 93 106
2302 100 114 113 117 115 109 110 108 100 117
80 110 109 114 111 105 103 101 95 112
60 110 106 110 107 102 101 99 96 109
50 111 107 111 106 101 100 99 97 109
40 113 111 113 108 102 100 100 98 110
40
30
25
15
10
7½
5
100 125 150
Volume (cfm x 1000)
0 20 40 60 80 100
3
Volume (m /hr x 1000)
Sound Power [dB Ref 10 -12 watts]
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.
41
1650
50% WOV
1800
1911
2050
60% WOV
2200
2302
70% WOV
80% WOV
90% WOV
®
33 BISW
% WOV = (CFM X 100) / (RPM X 22.2)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 350 100 87 79 73 69 64 55 48 41 71
80 86 78 70 64 60 51 44 38 68
60 85 74 67 61 58 50 46 40 66
50 83 73 65 61 58 50 46 41 65
40 82 73 65 61 58 50 47 41 65
700 100 98 95 88 85 84 77 69 62 88
80 97 92 84 81 79 72 66 60 84
60 94 90 82 78 75 69 65 63 81
50 93 89 80 77 74 69 67 67 81
40 93 89 80 77 74 69 68 67 80
1000 100 104 101 99 94 93 90 82 73 98
80 101 100 98 92 89 84 78 72 95
60 99 98 96 89 85 80 76 73 92
50 98 98 95 87 83 79 76 74 91
40 98 97 94 86 83 79 77 75 90
1400 100 110 109 109 103 102 101 95 86 108
80 106 106 105 100 99 96 91 83 104
60 104 104 103 98 95 91 87 83 101
50 104 102 101 96 93 90 87 84 99
40 104 102 100 95 92 89 87 84 98
1911 100 118 115 117 110 109 109 106 97 116
80 113 112 114 107 106 104 101 93 112
60 111 109 111 105 104 100 96 92 109
50 112 109 109 103 102 98 95 92 107
40 112 109 109 102 101 97 95 92 106
2302 100 121 120 121 117 113 113 111 104 120
80 116 116 117 114 111 109 106 99 117
60 114 114 115 111 108 105 101 97 114
50 115 114 113 110 106 103 100 97 112
40 115 114 113 109 105 102 99 97 111