Indoor unit
Ceiling Concealed Duct(High Static)
_
25
Indoor Units
9. Sound Levels
Sound Pressure Level (140Pa)
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
ARNU28GBGA4
ARNU36GBGA4
ARNU42GBGA4
n
High
▲
Mid
l
Low
n
High
▲
Mid
l
Low
n
High
▲
Mid
l
Low
Sound Pressure Level (160Pa)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
Octave Band Sound Pressure Level (0 dB = 20 μPa)
Octave Band Center Frequency (Hz)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Octave Band Center Frequency (Hz)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Octave Band Center Frequency (Hz)
10
20
30
40
50
60
70
80
63
125
250
500
1 000 2 000 4 000 8 000
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
ARNU28GBGA4
ARNU36GBGA4
ARNU42GBGA4
n
High
▲
Mid
l
Low
n
High
▲
Mid
l
Low
n
High
▲
Mid
l
Low