Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 549
II 716
III 902
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-73
250
200
150
125
100
75
60
50
300
350 400 450
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
225
300
375
450
549
0
0 5 10 15 20 25 30 35 40
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
180 100 91 90 86 83 78 72 66 61 84
80 91 90 86 83 78 72 66 61 84
60 92 89 86 83 78 72 67 62 84
50 92 90 86 83 78 72 66 61 84
40 94 91 86 83 78 72 67 62 85
250 100 93 90 88 85 80 71 66 62 86
80 91 89 88 85 80 71 64 60 86
60 90 88 87 85 80 71 65 60 86
50 90 88 87 85 80 71 65 61 86
40 90 88 87 85 80 71 66 62 86
350 100 105 98 92 90 85 78 74 71 91
80 103 95 91 89 84 77 72 68 90
60 100 93 90 89 84 77 73 69 90
50 100 93 90 89 84 78 74 70 90
40 100 93 90 90 85 78 74 71 91
500 100 110 107 100 98 93 88 85 81 100
80 109 104 96 96 90 86 82 78 97
60 105 100 94 95 90 86 83 80 96
50 104 99 93 95 90 87 84 81 96
40 106 99 92 95 90 87 85 82 96
650 100 118 117 107 105 101 96 92 89 107
80 116 114 103 101 96 92 90 87 104
60 114 111 100 98 94 93 90 88 102
50 112 109 99 97 94 93 91 89 101
40 111 108 98 97 94 93 92 89 101
902 100 121 130 117 112 110 105 101 97 118
80 118 128 114 108 106 101 98 95 115
60 115 125 111 105 104 100 99 96 112
50 115 123 109 104 103 100 99 97 111
40 115 121 109 104 103 101 100 98 111
Volume (cfm x 10,000)
0 10 20 30 40 50 60
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.
79
625
50% WOV
716
775
850
60% WOV
Sound Power [dB Ref 10 -12 watts]
902
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
73 AFDW
% WOV = (CFM X 100) / (RPM X 422)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 180 100 88 85 82 78 70 61 54 45 79
80 88 85 82 78 70 62 53 44 79
60 87 84 82 78 70 62 53 44 79
50 86 84 81 78 70 62 54 46 79
40 86 84 81 78 70 62 54 46 78
250 100 96 89 85 82 76 68 62 57 83
80 95 87 84 81 76 67 60 55 82
60 92 85 83 81 75 67 60 55 82
50 91 84 83 81 75 67 60 56 81
40 91 84 82 81 75 67 60 55 81
350 100 110 97 92 89 84 78 72 68 91
80 107 95 90 87 82 76 70 64 89
60 104 91 88 85 81 75 69 64 87
50 103 91 88 85 81 75 70 65 87
40 103 91 88 85 81 75 70 66 87
500 100 113 107 102 99 93 87 82 78 100
80 110 102 97 95 89 84 80 76 96
60 108 99 94 93 87 83 80 76 94
50 108 98 92 92 87 83 80 76 94
40 108 98 92 92 87 83 80 77 94
650 100 118 115 109 106 101 96 90 85 108
80 117 114 107 103 97 92 88 84 105
60 115 110 102 98 93 90 87 84 101
50 115 110 101 97 93 91 88 85 101
40 114 108 100 97 93 91 88 85 100
902 100 124 127 118 115 111 105 100 95 117
80 121 127 116 112 107 102 97 93 115
60 118 125 111 107 103 98 96 93 112
50 118 125 110 106 102 98 96 93 112
40 117 123 109 106 102 98 97 93 111
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