York K3EU180 User Manual
036-21300-002-A-0905
6
Unitary Products Group
NOTE:
These values have been accessed using a model of sound propagation from a point source into the hemispheric free field. The dBA values provided are
for reference only. Calculation of dBA values cover matters of system design and the fan manufacturer has no way of knowing the details of each sys-
tem. This constitutes an exception to any specification or guarantee requiring a dBA value or sound data in any other form than sound power level rat-
ings.
for reference only. Calculation of dBA values cover matters of system design and the fan manufacturer has no way of knowing the details of each sys-
tem. This constitutes an exception to any specification or guarantee requiring a dBA value or sound data in any other form than sound power level rat-
ings.
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TABLE 3: SOUND POWER RATINGS
UNIT
MODEL
CFM
ESP
BLOWER
SOUND POWER (dB 10
-12
WATTS)
OCTAVE BAND CENTERLINE FREQUENCY (HZ)
IWG
RPM
BHP
63
125
250
500
1,000
2,000
4,000
8,000
SWL dB(a)
dB(A)
@
10 FT.
1
060
2,000
0.50
940
0.70
88
88
78
71
73
66
61
56
77
44
090
3,000
0.60
750
1.05
88
88
78
73
71
66
61
56
77
45
120
4,000
0.70
850
1.75
91
91
81
74
76
69
64
59
81
48
180
6,000
0.75
750
2.75
95
95
85
80
78
73
68
63
84
52
1. At a distance of 10 feet from the blower.