Ceiling concealed duct - Middle static pressure
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11
7. Sound levels
Indoor unit
Compact
Indoor Units
7.2 Sound power level
Model
Sound power level [dB(A)]
H
ABNW18GBHC0 [UB18C NH0]
59
ABNW24GBHC0 [UB24C NH0]
63
Notes:
1. Operating condition
- Power source : 220-240V 50Hz / 220V 60Hz
- Cooling : Indoor temperature (27°C DB, 19°C WB), Outdoor temperature (35°C DB, 24°C WB)
- Heating : Indoor temperature (20°C DB, 15°C WB), Outdoor temperature (7°C DB, 6°C WB)
- External static pressure is according to “Standard mode” value. Refer the specifications.
2. Reference acoustic intensity 0dB = 10E-6μW/m
2
3. 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.
Octave Band Center Frequency (Hz)
Sound Power Level (0dB = 10E-6μW/m
2
)
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000 8000
NR-30
NR-35
NR-40
NR-45
NR-50
NR-55
NR-60
NR-65
NR-70
NR-75
NR-80
NR-85
NR-90
Octave Band Center Frequency (Hz)
Sound Power Level (0dB = 10E-6μW/m
2
)
20
30
40
50
60
70
80
90
100
125
250
500
1000
2000
4000 8000
NR-30
NR-35
NR-40
NR-45
NR-50
NR-55
NR-60
NR-65
NR-70
NR-75
NR-80
NR-85
NR-90
ABNW18GBHC0 [UB18C NH0]
ABNW24GBHC0 [UB24C NH0]
