York MFSI, Manual, Page: 27 / 48

YORK® MIXED FLOW, INLINE FAN, MODEL MFSI
27
SOUND POWER LEVELS
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 and LwiA sound power
levels for Installation Type B: free inlet, ducted outlet. Ratings do not include the effects of duct end correction.
0
1 2
3
4
5
6 7
8
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
CFM x 1000
ST
ATIC PRESSURE (inches W
.G.)
90% WOV
80% WOV
70% WOV
60% WOV
1/4 HP
1/3 HP
1/2 HP
3/4 HP 1 HP
1 1/2 HP
7 1/2 HP
2 HP
3 HP
5 HP
1400
1700
2000
2200
2400
2600
2800
3409
3000
3200
Do not select in shaded area.
90% WOV
80% WOV
70% WOV
60% WOV
1/4 HP
1/3 HP
1/2 HP
3/4 HP
1 HP
1 1/2 HP
7 1/2 HP
2 HP
3 HP
5 HP
1400
1700
2000
2200
2400
2600
2800
3409
System curve, do not select to the left.
Static
Pressure
(inches
W
.G.)
CFM x 1000
3000
3200
Size 150
Inlet Sound Power (Lwi)
RPM %WOV 1 2 3 4 5 6 7 8 LwiA RPM %WOV 1 2 3 4 5 6 7 8 LwiA
824
100 72 73 75 77 73 63 55 47 77
2400
100 80 87 96 92 91 88 84 74 96
80 71 73 75 77 74 64 55 46 78 80 78 84 91 89 89 88 82 76 94
70 71 73 75 77 74 64 56 47 78 70 79 84 89 87 88 87 82 76 93
60 72 73 75 78 74 64 56 47 78 60 79 83 89 87 88 87 82 76 93
50 72 73 75 78 74 64 56 47 78 50 80 83 87 86 88 87 82 76 93
1100
100 80 78 80 82 82 72 63 56 84
2600
100 82 88 97 94 93 90 87 77 98
80 78 78 80 82 82 73 64 56 85 80 79 86 92 91 90 90 85 78 96
70 78 78 80 82 82 73 65 56 85 70 80 85 91 90 90 89 84 78 95
60 79 78 80 82 82 73 65 57 85 60 81 85 90 89 89 89 84 78 94
50 79 77 80 82 82 73 65 56 85 50 81 85 88 88 89 89 84 78 94
1400
100 79 82 82 83 84 78 69 62 87
2800
100 83 90 98 96 94 92 89 80 99
80 79 81 82 83 83 77 70 62 86 80 80 87 94 93 92 91 87 81 97
70 79 80 82 83 83 78 70 62 86 70 81 87 92 92 91 91 87 80 97
60 79 80 81 83 84 78 70 62 87 60 82 87 91 91 91 91 86 80 96
50 79 80 81 83 83 77 70 62 86 50 83 87 90 90 90 91 86 80 96
1700
100 79 84 85 85 86 81 74 66 89
3000
100 84 91 98 99 96 94 91 83 101
80 79 82 84 85 85 80 74 67 88 80 82 89 95 95 94 93 89 83 99
70 79 81 83 84 85 80 73 67 88 70 83 88 93 94 93 93 89 83 99
60 79 80 82 84 85 80 73 67 88 60 83 88 93 93 92 92 88 82 98
50 80 80 82 83 85 80 73 66 88 50 84 88 91 91 92 92 88 82 97
2000
100 79 85 90 88 88 84 79 69 92
3200
100 85 92 99 101 97 96 92 85 103
80 77 83 88 86 86 84 78 71 90 80 83 90 96 97 95 95 91 85 101
70 78 82 86 85 86 84 77 71 90 70 84 90 94 95 94 94 91 84 100
60 78 82 85 84 86 83 77 71 90 60 84 90 94 95 93 94 90 84 99
50 79 81 84 84 85 83 77 71 89 50 85 90 92 93 93 94 90 84 99
2200
100 79 85 94 89 89 86 82 71 94
3409
100 87 94 100 103 99 98 94 87 105
80 76 83 90 87 87 86 80 73 92 80 84 91 97 99 96 96 93 87 102
70 77 82 88 85 86 85 79 73 91 70 85 91 95 97 95 96 93 86 101
60 78 81 87 84 86 85 79 73 90 60 85 91 95 97 95 95 92 86 101
50 79 80 85 83 86 85 79 73 90 50 86 92 93 95 94 95 92 86 100