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 1680
II 2192
III 2762
Static Pressure (in. wg)
18
16
14
12
10
8
6
4
2
AFDW-24
30
25
20
15
10
7½
5
3
2
1½
40
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
700
1000
50 60 75
1200
1400
1680
0
0 4 8 12 16 20 24 28 32 36 40 44
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
500 100 89 82 77 75 69 61 55 51 76
80 87 80 75 74 68 60 54 50 75
60 86 79 74 73 68 60 54 50 74
50 86 79 74 73 68 60 54 50 74
40 86 79 74 73 68 60 54 50 74
700 100 90 91 84 79 75 68 60 57 82
80 86 86 81 76 72 65 58 55 79
60 84 84 79 75 71 64 58 55 77
50 84 84 79 75 71 64 58 56 77
40 87 86 80 74 71 65 58 55 78
1000 100 89 91 90 86 84 79 72 66 89
80 86 89 88 85 81 75 69 64 86
60 86 89 86 83 79 74 69 65 85
50 89 91 87 82 78 74 69 66 85
40 93 91 87 82 79 74 70 66 85
1400 100 96 96 102 93 91 91 82 75 98
80 93 93 97 90 87 86 77 73 94
60 91 92 94 88 85 81 76 73 91
50 95 93 92 87 85 81 77 74 90
40 99 97 94 88 85 81 77 74 91
2000 100 106 101 107 103 99 101 96 88 107
80 104 98 105 100 95 96 91 85 103
60 102 96 102 97 93 91 87 83 100
50 102 96 102 96 92 90 87 84 99
40 109 106 105 98 92 90 87 84 101
2563 100 110 111 109 112 105 106 104 97 113
80 108 108 106 109 102 100 99 92 109
60 106 106 104 107 99 97 94 90 106
50 107 107 104 106 98 96 93 90 106
40 113 115 110 107 99 96 93 91 108
Volume (cfm x 1000)
0 10 20 30 40 50 60 70
3
Volume (m /hr x 1000)
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.
57
1900
2192
50% WOV
2400
2600
60% WOV
2762
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
24 AFDW
% WOV = (CFM X 100) / (RPM X 15.0)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 500 100 82 81 76 70 66 57 47 44 73
80 81 79 73 68 63 54 44 42 71
60 79 77 72 67 63 54 46 43 70
50 80 77 72 67 63 54 46 44 70
40 80 77 72 67 64 54 47 44 70
700 100 95 94 82 77 74 67 58 53 83
80 92 90 79 74 71 63 54 50 79
60 92 90 78 72 70 62 54 51 78
50 91 89 77 71 70 61 55 51 78
40 90 89 77 71 70 61 55 52 78
1000 100 92 99 88 83 83 77 69 63 89
80 88 96 85 80 78 72 65 60 85
60 87 94 83 78 76 69 64 61 83
50 94 96 84 77 76 69 65 62 84
40 97 94 85 77 76 69 65 62 84
1400 100 100 100 95 92 91 90 81 74 96
80 99 95 93 88 86 84 76 70 92
60 94 93 92 86 83 78 73 70 89
50 98 95 91 85 82 77 73 71 89
40 106 103 93 86 84 78 74 72 92
2000 100 112 108 104 102 100 100 95 87 106
80 105 101 100 98 96 94 89 82 101
60 104 101 99 95 92 89 84 81 98
50 102 100 98 94 91 87 84 81 97
40 111 111 104 97 93 88 85 82 101
2563 100 116 115 110 108 106 105 103 95 112
80 109 108 105 105 102 100 97 90 108
60 108 108 105 102 99 96 91 87 104
50 106 107 104 102 97 94 91 88 104
40 116 117 112 105 100 96 91 88 108
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