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APPROXIMATION FOR SOUND POWER LEVEL AT SUPPLY DUCT FLANGE OF UNIT
MODEL
PE(H)-7
PE(H)-8
PE(H)-10
PE(H)-15
PE(H)-20
60
70
90
140
180
125
125
125
200
200
77.2
79.4
81.2
83.4
84.5
74.7
76.9
78.7
80.9
82.1
71.6
73.9
75.7
78.0
79.1
69.9
72.4
74.3
76.6
77.7
65.7
68.4
70.4
72.7
73.8
61.4
64.3
66.5
68.9
70.1
Air volume
<CMM>
External
static
pressure
<Pa>
125Hz 250Hz 500Hz 1000Hz
2000Hz
4000Hz
Note: This is very rough calculation, Noise level will be changed by operation condition or installation.