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 1225
II 1597
III 2012
Static Pressure (in. wg)
18
16
14
12
10
8
6
4
2
AFDW-33
60 75 100
10
7½
5
3
500
700
850
1050
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
400 100 96 81 81 78 71 62 58 54 79
80 94 80 79 78 70 62 57 53 78
60 93 79 78 77 70 61 57 53 77
50 92 79 77 77 70 61 57 53 77
40 92 79 77 77 70 61 57 53 77
600 100 98 94 89 83 80 71 64 62 86
80 94 88 87 81 77 69 62 61 83
60 92 86 85 80 77 68 62 61 82
50 92 85 84 79 77 68 63 61 82
40 95 87 85 79 77 68 62 61 82
800 100 95 96 93 89 87 81 74 69 92
80 92 93 91 88 83 77 72 67 89
60 93 94 89 86 82 76 72 68 88
50 95 96 89 84 82 76 72 69 88
40 99 94 89 85 82 77 73 69 88
1100 100 100 102 104 95 95 93 83 77 101
80 98 98 100 92 90 87 79 75 96
60 96 96 97 90 88 83 79 75 94
50 99 96 95 89 87 83 80 76 93
40 104 99 97 90 88 83 80 77 94
1500 100 109 104 111 103 102 103 96 88 109
80 106 100 109 100 97 98 91 85 105
60 105 98 106 97 94 92 88 85 102
50 105 99 105 96 94 91 88 86 101
40 112 107 107 98 94 91 89 86 102
2012 100 116 111 117 112 108 110 105 98 116
80 114 108 114 109 104 105 100 94 112
60 113 106 112 106 102 100 96 92 109
50 113 107 111 105 101 99 96 93 108
40 120 116 115 108 102 99 96 94 111
50
40
30
25
20
15
1225
Volume (cfm x 10,000)
0 2 4 6 8 10 12
3
Volume (m /hr x 10,000)
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.
63
125
1400
50% WOV
1597
1750
150
1850
60% WOV
2012
Sound Power [dB Ref 10 -12 watts]
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
33 AFDW
% WOV = (CFM X 100) / (RPM X 38.4)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 400 100 87 84 78 72 69 57 49 48 75
80 87 81 76 70 67 54 46 47 73
60 84 80 75 69 67 54 48 47 72
50 85 80 75 70 67 54 49 48 73
40 85 80 75 70 68 54 50 48 73
600 100 102 97 85 82 80 71 62 58 86
80 98 93 83 78 77 66 58 55 83
60 98 92 81 76 76 65 59 56 82
50 97 92 80 76 76 64 59 57 81
40 97 92 80 76 76 64 60 57 81
800 100 97 104 89 87 86 79 71 65 92
80 94 101 86 83 81 74 67 63 88
60 93 99 84 81 79 71 67 64 86
50 99 100 85 80 79 71 68 65 87
40 101 97 86 80 79 71 68 66 86
1100 100 104 102 99 95 94 92 82 75 99
80 102 97 96 91 89 86 77 72 94
60 98 96 95 88 85 80 76 73 92
50 102 97 94 87 85 80 76 74 91
40 109 102 95 88 86 80 77 75 93
1500 100 114 108 106 104 103 102 94 87 108
80 107 103 103 100 98 95 89 82 103
60 107 102 101 97 94 90 85 82 99
50 105 101 100 95 93 89 86 83 98
40 115 112 103 98 95 89 86 83 102
2012 100 121 117 113 111 109 109 104 96 115
80 114 110 110 108 105 103 98 91 111
60 113 110 108 104 102 98 93 90 107
50 111 109 107 104 100 97 93 90 106
40 121 120 113 106 103 98 94 91 110
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