Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 818
II 1066
III 1343
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-49
125 150 200
30
25
20
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 2 4 6 8 10 12 14 16 18
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
250 100 86 85 84 79 76 69 64 59 81
80 87 85 83 79 76 69 64 59 81
60 88 85 82 79 76 69 64 59 81
50 88 85 84 79 76 70 64 59 81
40 91 86 84 79 76 70 64 59 82
350 100 90 86 84 82 78 71 63 59 83
80 88 85 83 82 78 71 62 58 83
60 86 84 83 82 78 71 62 58 83
50 85 84 82 82 78 71 62 58 83
40 86 84 83 82 78 71 63 59 83
500 100 102 96 91 86 84 77 71 68 89
80 102 93 88 85 83 76 70 66 88
60 98 91 86 85 84 76 70 67 87
50 97 91 86 85 84 77 71 67 88
40 97 91 87 86 84 77 72 68 88
700 100 102 105 98 94 92 85 81 78 97
80 99 104 95 90 89 83 79 75 94
60 96 100 91 88 89 83 80 77 93
50 95 98 90 88 89 83 81 78 93
40 96 100 90 88 89 83 81 78 93
1000 100 108 119 109 102 101 96 91 88 108
80 105 117 106 98 97 91 89 86 105
60 103 114 102 95 95 90 89 87 102
50 102 112 101 94 94 90 90 88 101
40 103 111 100 94 94 91 90 88 101
1343 100 112 122 121 111 108 105 100 96 116
80 109 120 119 107 104 100 96 93 113
60 107 117 116 104 102 98 96 94 110
50 107 116 114 103 101 98 97 95 109
40 108 115 113 102 101 98 97 95 109
100
75
60
50
40
15
350
500
600
700
818
Volume (cfm x 10,000)
0 5 10 15 20 25 30
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.
71
950
50% WOV
250
1066
1150
1250
60% WOV
300
Sound Power [dB Ref 10 -12 watts]
1343
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
49 AFDW
% WOV = (CFM X 100) / (RPM X 128)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 250 100 85 81 79 75 70 59 53 44 76
80 85 81 79 75 70 60 53 44 76
60 83 80 78 75 70 60 53 44 76
50 83 79 78 74 71 60 53 45 76
40 83 79 78 74 70 60 53 45 76
350 100 95 87 81 79 75 67 59 54 81
80 95 85 80 78 74 67 58 53 80
60 93 83 79 78 74 67 58 53 79
50 91 82 78 77 74 67 58 53 79
40 92 82 77 77 73 66 58 52 79
500 100 110 98 90 87 82 77 70 66 90
80 106 96 87 84 80 75 68 62 88
60 102 93 84 83 79 74 67 62 85
50 101 93 83 83 79 74 68 63 85
40 100 93 83 83 79 74 68 64 85
700 100 108 107 98 96 92 85 80 75 98
80 102 103 93 91 88 82 77 73 94
60 101 101 90 88 86 79 77 73 91
50 100 101 89 87 86 79 77 73 91
40 101 101 89 87 86 80 77 74 91
1000 100 113 117 108 105 102 97 91 86 108
80 110 117 106 103 98 92 88 84 106
60 107 115 102 98 94 89 86 83 103
50 107 115 101 97 93 89 87 84 102
40 106 113 100 96 93 89 87 84 101
1343 100 118 122 119 113 110 105 99 94 116
80 114 120 118 111 106 101 96 92 114
60 111 119 115 106 102 97 94 91 110
50 111 118 115 105 101 97 94 92 110
40 111 117 113 104 101 96 94 92 109
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