Sound Levels - LG MULTI V ARNU07GTUA4 Engineering Product Data Book

Indoor unit

9. Sound Levels

9.1 Sound Pressure Levels
Overall
DISCHARGE
DUCT
2m
❈ Measuring place : Anechoic chamber
Model
H
ARNU48GBRZ4 41
ARNU76GB8Z4 45
ARNU96GB8Z4 47
ARNU48GBRZ4
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
SUCTION
DUCT
1.5m
2m
[dB(A)]
Sound Pressure Levels
M L
40 38
43 43
45 45
ARNU76GB8Z4
80
n
High
▲ Mid
l Low
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
Approximate
NC-20
Hearing
Threshold
NC-15
10
63 125
Octave Band Center Frequency (Hz)
Notes:
1. Sound measured at 1.5m away from the center of the unit
2. Operating condition|
- Cooling : Outdoor temperature (33°C DB, 28°C WB)
- Heating : Outdoor temperature (0°C DB, -2.9°C WB)
3. Reference accoustic pressure 0dB = 20μPa
4. Sound level will vary depending on a range of factors such as the
construction(acoustic absorption coefficient) of particular room in
which the equipment in installed.
n
High
▲ Mid
l Low
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1 000 2 000 4 000 8 000
ARNU96GB8Z4
80
n
▲ Mid
l Low
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
Fresh Air Intake Unit
High
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
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