Single-Width Centrifugal Fan Performance Supplement - Greenheck

Static Pressure (Pa x 100)
60
40
20
0
Class Max RPM
I 694
II 905
III 1142
IV 1375
Static Pressure (in. wg)
25
20
15
10
5
BISW-54
75
60
50
40
30
25
20
15
10
150
125
500
600
694
800
905
DO NOT SELECT TO THE LEFT OF THIS SYSTEM CURVE
250 300 350
50% WOV
60% WOV
0
0 2 4 6 8 10 12 14
Inlet Sound Power, Lwi
RPM %WOV 1 2 3 4 5 6 7 8 Lwi A
200 100 81 73 68 62 56 48 41 36 65
80 79 71 65 59 54 45 39 36 62
60 79 70 64 60 55 45 40 34 62
50 79 70 65 62 56 47 41 37 63
40 78 70 65 62 57 48 42 38 64
400 100 104 92 84 81 78 71 64 60 85
80 101 88 80 77 74 68 63 58 81
60 99 85 78 76 74 70 66 62 80
50 96 83 77 76 74 70 66 62 79
40 100 86 79 77 74 70 67 63 81
600 100 104 103 95 92 91 84 77 72 95
80 102 101 91 87 85 80 74 70 91
60 99 97 88 85 83 80 77 73 89
50 99 96 87 84 82 80 77 74 88
40 103 97 90 86 83 81 79 77 90
800 100 109 113 103 99 97 94 87 81 103
80 106 111 99 95 93 89 83 79 100
60 103 107 95 91 90 88 85 82 97
50 104 108 95 90 89 88 86 83 97
40 110 111 98 93 90 88 86 83 99
1140 100 116 120 114 107 106 105 98 92 112
80 111 118 110 103 102 99 93 89 109
60 108 115 107 100 99 97 94 91 106
50 110 115 107 99 98 96 95 92 106
40 119 119 111 102 99 97 95 93 108
1375 100 119 124 122 113 110 109 104 97 118
80 114 121 119 109 106 104 99 94 114
60 111 118 116 106 103 101 99 96 111
50 114 119 116 105 102 101 99 97 111
40 122 123 120 109 104 102 100 97 115
100
400
200
Volume (cfm x 10,000)
0 5 10 15 20
3
Volume (m /hr x 10,000)
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
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.
51
975
1075
1142
1275
1375
®
54 BISW
% WOV = (CFM X 100) / (RPM X 93.0)
Outlet Sound Power, Lwo
RPM %WOV 1 2 3 4 5 6 7 8 LwoA 200 100 85 79 72 68 61 53 48 44 70
80 84 77 70 65 59 51 47 44 68
60 82 77 69 66 60 51 47 44 68
50 82 77 69 65 60 52 48 45 68
40 82 76 69 66 60 52 48 45 68
400 100 104 93 88 85 81 75 69 66 87
80 100 90 84 81 76 70 65 61 83
60 98 87 81 78 74 69 66 63 81
50 99 87 81 78 74 70 67 66 81
40 98 87 80 77 73 69 67 67 80
600 100 111 106 99 96 93 89 82 78 99
80 106 102 94 91 88 83 77 73 94
60 104 101 92 88 84 81 77 74 92
50 103 99 91 87 83 80 77 75 91
40 103 98 90 87 83 79 77 75 90
800 100 115 116 107 103 101 98 91 84 107
80 112 113 103 99 96 92 86 80 103
60 108 111 100 96 92 89 85 81 100
50 108 110 99 95 91 88 85 82 99
40 108 109 98 94 90 87 85 82 98
1140 100 122 123 117 113 109 108 103 95 116
80 119 120 113 109 105 102 96 91 112
60 113 119 110 106 102 99 95 91 109
50 114 117 109 105 100 97 95 91 108
40 116 116 109 104 99 96 94 91 107
1375 100 125 127 125 118 114 112 108 101 122
80 122 124 121 114 110 107 102 96 117
60 117 121 119 111 107 103 100 96 115
50 118 121 118 110 105 102 99 96 114
40 119 120 117 109 105 101 99 96 113