Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 607
II 792
III 998
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-66
200 250 300 350 400
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
200 100 90 89 86 83 78 72 66 61 84
80 91 89 86 83 78 72 66 61 84
60 91 89 85 82 78 72 67 62 84
50 92 89 86 83 78 72 66 61 84
40 94 90 86 83 78 72 67 62 84
300 100 95 92 89 87 82 75 68 64 88
80 93 90 89 87 82 74 66 62 88
60 91 90 88 87 82 75 67 62 87
50 91 89 88 87 82 75 67 63 88
40 91 90 88 87 82 75 67 64 88
400 100 107 99 93 90 86 79 74 71 92
80 106 96 91 89 85 78 73 69 91
60 102 94 90 89 85 78 73 70 91
50 102 94 90 89 85 79 74 71 91
40 102 94 91 90 86 79 75 72 91
500 100 107 104 97 95 90 85 81 78 97
80 105 101 93 92 87 83 79 75 94
60 102 97 90 92 87 83 80 77 93
50 101 96 90 91 87 84 81 78 93
40 103 96 89 92 87 84 82 79 93
700 100 116 117 106 103 100 95 91 88 107
80 113 115 103 99 95 91 88 85 103
60 111 112 99 97 93 91 89 87 101
50 109 110 98 96 93 92 90 88 100
40 109 109 97 96 93 92 90 88 100
998 100 118 128 118 111 110 105 100 97 117
80 115 126 115 107 106 100 98 95 114
60 113 124 111 104 104 99 98 96 112
50 112 122 110 103 103 99 99 97 110
40 113 120 109 103 103 100 99 97 110
150
125
100
75
60
50
40
250
350
425
525
607
Volume (cfm x 10,000)
0 5 10 15 20 25 30 35 40 45 50
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.
77
700
50% WOV
450
792
850
925
60% WOV
Sound Power [dB Ref 10 -12 watts]
998
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
66 AFDW
% WOV = (CFM X 100) / (RPM X 312)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 200 100 88 85 82 78 71 62 54 46 79
80 88 85 82 78 71 62 54 45 79
60 86 84 81 78 71 62 54 45 79
50 86 83 81 78 71 62 55 46 78
40 86 83 81 77 71 62 55 46 78
300 100 99 91 86 84 79 71 64 59 85
80 98 90 85 83 78 70 63 57 84
60 96 88 84 83 78 70 62 58 84
50 95 86 84 82 78 70 63 58 83
40 95 86 83 82 78 70 62 57 83
400 100 113 99 93 90 85 79 73 69 93
80 110 97 90 87 83 77 70 65 90
60 106 93 88 86 82 76 70 65 88
50 105 93 88 86 82 76 71 66 88
40 105 94 88 86 82 76 71 67 88
500 100 110 103 99 96 90 84 79 75 97
80 107 99 94 92 86 81 77 73 93
60 105 96 91 90 84 80 77 73 91
50 105 95 89 89 84 80 77 73 91
40 105 95 89 89 84 80 77 74 91
700 100 116 115 108 105 100 95 89 84 107
80 115 114 106 102 96 91 87 83 104
60 113 111 101 97 92 89 86 83 101
50 113 111 100 96 92 89 87 84 100
40 111 109 99 96 92 89 87 84 100
998 100 122 126 117 114 111 106 100 95 117
80 119 126 115 112 107 101 97 93 115
60 116 124 111 107 103 98 95 92 112
50 116 124 110 106 102 98 96 93 111
40 115 122 109 105 102 98 96 93 110
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