Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 739
II 963
III 1213
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-54
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 2 4 6 8 10 12 14 16 18 20 22
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
250 100 90 88 87 83 79 73 67 62 85
80 91 88 86 82 79 73 67 62 84
60 91 89 85 82 79 73 67 62 84
50 91 88 87 82 79 73 67 62 85
40 94 90 87 82 79 73 67 62 85
350 100 93 89 87 85 81 74 66 62 86
80 91 88 86 85 81 74 65 61 86
60 89 87 86 85 81 74 65 61 86
50 89 87 85 85 81 74 65 62 86
40 89 87 86 85 81 74 66 62 86
450 100 104 96 91 87 84 77 72 68 89
80 103 93 88 86 83 76 70 66 88
60 99 91 87 86 83 76 71 67 88
50 99 91 87 86 83 77 71 68 88
40 98 91 87 86 84 77 72 69 88
650 100 104 106 99 95 92 86 82 79 98
80 101 104 96 92 90 84 80 76 95
60 99 100 92 90 89 84 81 78 94
50 98 99 91 90 89 85 82 79 94
40 99 101 91 90 90 85 82 79 94
900 100 111 120 108 103 101 96 92 88 108
80 108 119 105 99 97 92 89 86 106
60 106 116 102 96 95 91 90 87 103
50 105 114 100 95 94 91 90 88 102
40 105 112 99 95 94 92 91 88 101
1213 100 114 124 119 111 109 105 100 96 116
80 110 122 117 107 105 100 97 94 113
60 108 120 114 104 103 98 97 95 110
50 108 118 112 102 102 98 97 95 109
40 109 117 111 102 102 99 98 96 109
150
125
100
75
60
50
40
30
25
200
300
425
525
250
625
739
Volume (cfm x 10,000)
0 5 10 15 20 25 30 35
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.
73
850
300
50% WOV
963
350
1050
1125
60% WOV
Sound Power [dB Ref 10 -12 watts]
1213
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
54 AFDW
% WOV = (CFM X 100) / (RPM X 173)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 250 100 88 84 82 78 73 63 56 47 79
80 88 84 82 78 74 63 56 47 80
60 86 83 81 78 74 63 56 47 79
50 86 82 81 78 74 63 56 48 79
40 86 82 81 77 74 63 56 48 79
350 100 99 90 84 83 78 71 62 57 84
80 98 88 83 81 77 70 61 56 83
60 96 86 82 81 77 70 61 56 82
50 94 85 81 81 77 70 61 56 82
40 95 85 80 80 77 70 61 55 82
450 100 111 98 90 87 82 76 71 66 90
80 107 95 87 85 80 75 68 62 88
60 103 92 85 83 79 74 67 62 86
50 102 92 84 83 79 74 68 63 85
40 102 92 84 83 79 74 68 64 85
650 100 109 107 99 97 92 86 81 76 99
80 104 103 95 92 89 83 78 74 95
60 103 101 92 90 86 80 78 74 92
50 102 101 90 89 86 81 78 74 92
40 103 101 90 88 86 81 78 75 92
900 100 114 118 108 106 102 96 91 86 108
80 112 118 107 103 98 93 88 84 106
60 109 116 102 98 94 89 87 83 103
50 109 116 101 97 93 89 87 84 103
40 108 114 100 96 93 89 88 84 102
1213 100 119 123 118 114 110 105 99 94 116
80 115 122 116 111 107 101 96 92 114
60 113 121 113 106 102 97 95 91 110
50 112 121 112 105 101 97 95 92 110
40 112 119 110 104 101 97 95 92 109
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