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 1348
II 1757
III 2214
Static Pressure (in. wg)
18
16
14
12
10
8
6
4
2
AFDW-30
50 60 75
5
3
2
550
750
950
1150
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
400 100 92 78 78 75 68 59 55 51 76
80 90 77 76 75 67 59 54 51 75
60 89 76 75 74 67 58 54 50 74
50 89 76 75 74 67 58 54 50 74
40 89 76 74 74 67 58 54 50 74
600 100 95 91 86 80 77 69 61 59 83
80 90 85 84 78 74 66 59 58 80
60 89 83 82 77 74 65 59 58 79
50 88 82 82 76 74 65 60 58 79
40 92 84 82 76 74 65 60 58 79
800 100 91 93 90 87 85 78 71 66 89
80 89 90 88 85 81 74 69 64 86
60 89 91 87 83 79 73 69 65 85
50 92 93 86 81 79 73 69 66 85
40 95 91 86 82 79 74 70 66 85
1100 100 97 99 101 92 92 90 80 74 98
80 94 95 97 89 88 84 76 72 93
60 93 93 94 87 85 81 76 73 91
50 95 93 92 86 85 80 77 74 90
40 100 96 94 87 85 80 77 74 91
1600 100 108 101 110 102 100 103 95 87 108
80 105 98 108 99 96 97 90 84 104
60 104 95 106 96 93 91 86 84 101
50 104 96 105 95 92 90 87 84 100
40 111 105 106 97 92 90 87 85 101
2214 100 115 112 114 113 108 109 106 98 115
80 113 109 112 110 104 104 100 94 112
60 111 107 109 107 101 99 96 92 108
50 111 107 109 106 100 98 95 93 108
40 118 116 114 108 101 98 96 93 110
40
30
25
20
15
10
7½
100 125
1348
Volume (cfm x 1000)
0 10 20 30 40 50 60 70 80 90 100 110
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.
61
1550
50% WOV
1757
1900
2050
60% WOV
2214
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
30 AFDW
% WOV = (CFM X 100) / (RPM X 28.8)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 400 100 84 81 75 69 66 54 46 45 72
80 84 79 73 67 64 51 43 44 70
60 82 77 72 66 64 51 45 44 69
50 83 77 72 67 64 51 46 45 70
40 83 77 72 67 65 51 47 45 70
600 100 99 94 83 79 77 68 59 55 83
80 95 90 80 75 74 63 55 52 80
60 95 89 78 73 73 62 56 53 79
50 94 89 77 73 73 61 56 54 78
40 94 89 77 73 73 61 57 54 78
800 100 95 101 86 84 83 76 68 62 89
80 91 98 83 80 79 71 64 60 85
60 90 96 81 78 76 68 64 61 83
50 96 97 82 77 76 68 65 63 84
40 98 95 83 77 76 68 65 63 83
1100 100 101 99 96 92 92 89 79 72 96
80 99 95 93 88 86 83 74 69 92
60 95 93 92 85 83 77 73 70 89
50 99 94 91 84 82 77 73 71 88
40 106 99 92 85 83 77 74 72 90
1600 100 113 107 105 102 101 101 94 86 107
80 106 101 102 99 96 94 88 81 102
60 106 101 100 95 93 89 84 81 98
50 104 100 99 94 92 87 84 82 97
40 113 111 103 96 94 88 85 82 101
2214 100 120 117 113 110 108 109 104 97 115
80 112 110 109 107 105 103 98 91 110
60 112 110 107 104 101 98 93 90 107
50 110 109 107 103 100 96 93 90 106
40 119 119 113 106 102 98 94 91 110
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