Daikin ERQ User Manual download pdf (Page 35)

• Ventilation • ERQ-AW1

• Outdoor Unit • ERQ-AW1

12 Sound data

12 - 2 Sound Pressure Spectrum

4D052394B

Octave band sound pressure level dB(0dB=0.0002μ bar)

Octave band center frequency (Hz)

ERQ125AW1

NOTES

1 The operating sound is measured in anechoic

chamber, if it is measured under the actual installation

conditions, it is normally over the set value due to

enviromental noise and sound reflection.

Location of

microphone

approximate

threshold hearing for

continuous noise

front side

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ERQ250AW1

4D052396K

NOTES

1 Over All (dB):

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2 Operating conditions:

 Power source Y1: 380-415V 50Hz

 JIS standard

3 Measuring place: anechoic chamber (conversion value)

4 The operating sound is measured in anechoic chamber, if it is measured under the actual

installation conditions, it is normally over the set value due to environmental noise and

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5 Location of microphone.

1 m

1.5 m

Front

side

Octave band sound pressure level dB (0dB=0.0002μ bar)

Octave band center frequency (Hz)

Scale 50Hz

A 58.0

C 67.0

Approximate

threshold hearing

for continuous

noise

1 2 ... 30 31 32 33 34 35 36 37 38 39

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Daikin ERQ User Manual Page 35

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