Double-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
35
30
25
20
15
10
5
0
Class Max RPM
I 668
II 871
III 1097
Static Pressure (in. wg)
16
14
12
10
8
6
4
2
AFDW-60
150
125
100
75
60
50
40
30
200 300
250
275
375
475
575
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
200 100 87 86 83 80 75 69 63 58 81
80 88 86 83 80 75 69 64 58 81
60 88 86 83 80 75 69 64 59 81
50 88 86 83 80 75 69 64 58 81
40 91 87 84 80 75 69 64 59 82
300 100 92 89 86 84 79 72 65 61 85
80 90 88 86 84 79 71 63 59 85
60 88 87 86 84 79 72 64 59 85
50 88 86 85 84 79 72 64 60 85
40 88 87 85 84 80 72 65 61 85
400 100 104 96 90 87 83 76 72 68 89
80 103 93 88 86 83 75 70 66 88
60 99 91 87 86 83 76 70 67 88
50 99 91 87 86 83 76 71 68 88
40 99 91 88 87 83 76 72 69 88
550 100 105 104 97 94 90 85 81 78 96
80 103 101 93 92 87 83 79 75 94
60 100 98 90 90 87 83 80 77 93
50 99 96 90 90 87 84 81 78 93
40 101 97 89 90 87 84 81 78 93
800 100 113 120 108 103 101 96 91 88 108
80 111 118 104 99 96 92 89 86 105
60 108 116 101 97 94 91 90 87 103
50 107 114 99 96 94 92 90 88 102
40 107 112 99 95 94 92 91 89 101
1097 100 116 127 118 110 110 105 100 97 116
80 112 125 115 107 106 100 97 94 113
60 110 122 112 103 103 98 98 95 111
50 110 120 110 102 103 99 98 96 110
40 111 119 109 102 103 99 99 96 109
Volume (cfm x 10,000)
0 5 10 15 20 25 30 35 40
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.
668
75
350
775
50% WOV
871
400 450
950
1025
60% WOV
Sound Power [dB Ref 10 -12 watts]
1097
70% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft 3
Density 1.2 kg/m 3
80% WOV
90% WOV
60 AFDW
% WOV = (CFM X 100) / (RPM X 234)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 200 100 85 82 79 75 68 59 51 43 76
80 85 82 79 75 68 59 51 42 76
60 83 81 78 75 68 59 51 42 76
50 83 80 78 75 68 59 52 43 76
40 83 80 78 75 68 59 52 43 75
300 100 96 88 84 81 76 68 61 56 83
80 95 87 82 80 75 68 60 54 81
60 93 85 81 80 75 67 60 55 81
50 92 84 81 80 75 67 60 55 80
40 92 84 80 79 75 67 59 54 80
400 100 110 96 90 87 82 76 70 66 90
80 107 94 87 84 80 74 68 62 87
60 103 91 85 83 79 73 67 62 85
50 102 90 85 83 79 73 68 63 85
40 102 91 85 83 79 73 68 64 85
550 100 109 104 98 95 90 84 79 75 97
80 105 100 93 92 86 81 77 72 93
60 103 97 90 89 84 79 76 73 91
50 103 97 89 88 84 80 76 73 90
40 104 96 88 88 84 80 77 74 90
800 100 116 118 109 106 101 96 90 85 108
80 113 118 106 103 97 92 88 84 106
60 111 116 102 98 93 89 87 83 103
50 111 116 101 97 93 89 87 84 103
40 110 114 100 96 93 90 88 84 101
1097 100 121 125 117 114 110 105 99 94 116
80 117 124 115 111 107 101 97 93 114
60 114 123 110 107 103 97 95 92 111
50 114 123 109 105 102 97 96 92 110
40 114 121 108 105 102 97 96 93 109
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