• Air Handling Unit Connection • ERQ-AV1
• Air Handling Unit Connection • Heat pump
24
9
Sound data
9 - 1 Sound pressure spectrum
4D052716B
Octave
band
sound
pressure
level
dB(0dB=0.0002
μ
bar)
Octave band center frequency (Hz)
ERQ140AV1
Overall (dB)
Scale A
53.0
Scale C
64.5
(B,G,N is already rectified)
Measure in anechoic room
Note: 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
Operating conditions
Power source 220-240V 50Hz, 220V 60Hz
Return air temperature: 27°C DB, 19°C
WB
Outdoor temperature: 35°C DB, 24°C
WB
Cooling:
4D052717B
Octave
band
sound
pressure
level
dB:(0dB
=
0.0002
μ
bar)
Octave band center frequency (Hz)
ERQ140AV1
approximate
threshold hearing
for continuous
noise
Power source 220-240V 50Hz, 220V 60Hz
Heating:
Return air temperature: 20°C DB
Outdoor temperature: 7°C DB, 6°C WB
Location of microphone
Overall (dB)
Scale A
55.0
Scale C
67.0
(B,G,N is already rectified)
Measure in anechoic room
Note: 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.
Operating conditions