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 996
II 1298
III 1635
Static Pressure (in. wg)
18
16
14
12
10
8
6
4
2
AFDW-40
100 125 150 200
10
7½
5
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 1 2 3 4 5 6 7 8 9 10 11 12
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
300 100 84 83 82 78 75 69 63 58 80
80 85 84 82 78 75 69 63 58 80
60 85 84 81 78 75 69 63 58 80
50 85 84 82 78 75 69 63 58 80
40 89 85 83 78 75 69 63 58 81
400 100 87 83 81 79 76 70 60 57 81
80 85 82 80 80 76 70 59 55 81
60 83 81 80 79 76 70 60 55 80
50 82 81 79 79 76 70 60 56 81
40 82 81 80 79 76 70 60 56 81
600 100 99 95 90 85 83 77 70 67 88
80 98 93 87 83 83 76 69 65 87
60 94 90 85 83 83 76 69 66 86
50 94 91 85 83 83 76 70 66 87
40 93 91 85 84 83 77 71 67 87
800 100 97 104 96 91 90 83 79 76 95
80 93 102 93 87 87 81 77 73 92
60 91 98 89 85 87 80 78 74 91
50 90 97 88 84 87 81 79 75 90
40 91 100 88 84 87 81 79 76 91
1200 100 104 115 110 101 100 95 90 87 106
80 100 113 107 98 96 91 87 84 103
60 98 110 104 94 93 89 88 85 101
50 98 108 102 93 93 89 88 86 100
40 99 107 101 92 93 89 89 87 99
1635 100 109 117 124 111 107 104 99 95 117
80 106 114 122 108 103 100 95 92 115
60 104 112 120 105 100 98 95 93 112
50 104 111 118 103 99 98 95 94 111
40 105 111 116 102 99 98 95 94 110
75
60
50
40
30
25
20
15
400
550
700
850
996
Volume (cfm x 10,000)
0 2 4 6 8 10 12 14 16 18 20
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.
67
1150
50% WOV
1298
1400
1500
60% WOV
Sound Power [dB Ref 10 -12 watts]
1635
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
40 AFDW
% WOV = (CFM X 100) / (RPM X 70.7)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 300 100 83 80 78 74 70 60 53 44 76
80 83 80 78 74 70 61 53 44 76
60 81 79 77 74 70 61 53 44 75
50 81 78 77 73 70 61 53 45 75
40 81 78 76 73 70 61 53 45 75
400 100 94 86 78 77 73 66 57 52 79
80 93 84 77 75 72 65 56 51 78
60 91 81 76 75 72 65 56 51 77
50 90 80 75 75 72 65 56 51 76
40 91 80 74 75 72 65 56 50 76
600 100 107 99 89 85 82 76 70 65 89
80 103 98 86 83 79 75 68 62 87
60 99 94 82 82 78 74 67 62 85
50 98 94 82 82 78 74 67 62 85
40 98 95 82 82 78 74 67 63 85
800 100 104 106 96 93 90 83 78 73 96
80 98 103 91 88 86 79 75 71 92
60 97 100 88 85 84 77 74 71 90
50 96 100 87 84 84 77 74 71 89
40 96 101 86 83 84 77 74 71 89
1200 100 110 114 108 104 101 96 90 85 107
80 106 113 107 102 97 92 87 83 104
60 103 112 103 97 93 88 85 82 101
50 103 111 102 96 92 87 86 83 100
40 103 110 101 95 92 87 86 83 99
1635 100 116 119 122 112 109 105 99 94 116
80 112 116 121 110 106 101 96 91 115
60 109 114 120 105 101 97 93 90 113
50 109 114 120 104 100 96 93 91 112
40 108 113 118 103 100 96 93 91 111
®