Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 901
II 1174
III 1479
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-44
100 125 150
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 2 4 6 8 10 12 14 16
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
300 100 87 86 85 81 78 72 66 61 83
80 88 87 85 81 78 72 66 61 83
60 88 87 84 81 78 72 66 61 83
50 89 87 85 81 78 72 66 61 83
40 92 89 86 81 78 72 67 62 84
400 100 90 86 85 82 79 73 63 60 84
80 88 85 83 83 79 73 62 58 84
60 86 84 83 82 79 73 63 58 83
50 85 84 82 82 79 73 63 59 84
40 86 84 83 83 79 73 63 59 84
600 100 102 99 93 88 86 80 73 70 91
80 102 96 90 86 86 79 72 68 90
60 97 94 88 86 86 79 72 69 90
50 97 94 88 86 86 79 73 69 90
40 97 94 88 87 86 80 74 70 90
800 100 101 107 99 94 93 86 82 79 98
80 97 106 96 90 90 84 80 76 96
60 95 101 92 88 90 83 81 77 94
50 94 100 91 87 90 84 82 78 94
40 95 103 91 87 90 84 82 79 94
1100 100 106 117 109 101 101 96 91 88 107
80 102 116 106 98 97 91 88 85 104
60 100 113 103 94 94 89 89 86 102
50 100 111 101 93 94 90 89 87 100
40 101 109 100 93 94 90 90 87 100
1479 100 111 119 123 111 107 105 99 95 116
80 107 117 121 108 104 100 96 93 114
60 105 115 118 104 101 98 95 94 111
50 105 113 116 103 100 98 96 94 110
40 106 113 114 102 100 98 96 95 109
75
60
50
40
30
25
20
15
10
7½
400
550
650
800
901
Volume (cfm x 10,000)
0 2 4 6 8 10 12 14 16 18 20 22 24 26
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.
69
50% WOV 60% WOV
200 250
1050
1174
1300
1400
1479
70% WOV
Sound Power [dB Ref 10 -12 watts]
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
44 AFDW
% WOV = (CFM X 100) / (RPM X 95.6)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 300 100 86 83 81 77 73 63 56 47 79
80 86 83 81 77 73 64 56 47 79
60 84 82 80 77 73 64 56 47 78
50 84 81 80 76 73 64 56 48 78
40 84 81 79 76 73 64 56 48 78
400 100 97 89 81 80 76 69 60 55 82
80 96 87 80 79 75 69 59 54 81
60 94 84 79 78 75 68 59 54 80
50 93 83 78 78 75 68 59 54 79
40 94 83 77 78 75 68 59 53 79
600 100 110 102 92 88 85 79 73 68 92
80 106 101 89 86 82 78 71 65 90
60 102 97 85 85 81 77 70 65 88
50 101 97 85 85 81 77 70 65 88
40 101 98 85 85 81 77 70 66 88
800 100 107 109 99 96 93 86 81 76 99
80 101 106 94 91 89 82 78 74 95
60 100 103 91 88 87 80 77 74 93
50 99 103 90 87 87 80 77 74 92
40 100 104 89 86 87 80 77 74 93
1100 100 112 116 108 105 101 96 90 85 107
80 108 115 106 102 98 92 88 84 105
60 105 114 101 98 94 88 86 83 102
50 105 114 100 96 93 88 87 83 101
40 104 112 99 96 93 88 87 84 100
1479 100 117 120 120 113 109 105 99 94 116
80 113 118 120 110 106 101 96 92 114
60 110 116 117 106 102 97 93 91 111
50 110 116 117 104 101 96 94 91 111
40 110 115 115 104 100 96 94 91 109
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