Indoor unit
9. Sound Levels
ARNU48GM3A4
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)
Sound Pressure Level (147Pa)
ARNU28GM2A4
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)
ARNU48GM3A4
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)
ARNU54GM3A4
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
250
Octave Band Center Frequency (Hz)
ARNU36GM2A4
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
250
Octave Band Center Frequency (Hz)
ARNU54GM3A4
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
250
Octave Band Center Frequency (Hz)
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
500
1 000 2 000 4 000 8 000
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
NC-20
NC-15
10
500
1 000 2 000 4 000 8 000
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
500
1 000 2 000 4 000 8 000
Ceiling Concealed Duct(Middle Static)
ARNU42GM2A4
n
High
▲ Mid
l Low
Approximate
Hearing
Threshold
63
125
250
500
1 000 2 000 4 000 8 000
Octave Band Center Frequency (Hz)
_ 33
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15