1-27
1
1-6. Noise Criterion Curves
(A) Indoor Units
Low
High
Octave Band Level (dB)
*0dB = 0.0002 µbar
Frequency at center of sound pressure band (Hz)
10
20
30
40
50
60
63 125 250 500 1000 2000 4000 8000
NC-40
NC-60
NC-50
NC-30
NC-20
4 WAY Cassette Type
Approximate
minimum
audible limit
for continuous
noise
MODEL
SOUND LEVEL
CONDITION
SOURCE
: S-60PU1R5
: High
Low
36 dB(A)
28 dB(A)
: Under the unit 1.5m
: 230-240V, 1 phase, 50Hz
MODEL
SOUND LEVEL
CONDITION
SOURCE
: S-71PU1R5
: High
Low
37 dB(A)
28 dB(A)
: Under the unit 1.5m
Octave Band Level (dB)
*0dB = 0.0002 µbar
Frequency at center of sound pressure band (Hz)
10
20
30
40
50
60
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
Approximate
minimum
audible limit
for continuous
noise
: 230-240V, 1 phase, 50Hz
Octave Band Level (dB)
*0dB = 0.0002 µbar
Frequency at center of sound pressure band (Hz)
10
20
30
40
50
60
63 125 250 500 1000 2000 4000 8000
NC-40
NC-60
NC-50
NC-30
NC-20
Approximate
minimum
audible limit
for continuous
noise
MODEL
SOUND LEVEL
CONDITION
SOURCE
: S-100PU1R5
: High
Low
44 dB(A)
32 dB(A)
: Under the unit 1.5m
: 230-240V, 1 phase, 50Hz
Octave Band Level (dB)
*0dB = 0.0002 µbar
Frequency at center of sound pressure band (Hz)
10
20
30
40
50
60
63 125 250 500 1000 2000 4000 8000
NC-40
NC-50
NC-30
NC-20
NC-60
Approximate
minimum
audible limit
for continuous
noise
MODEL
SOUND LEVEL
CONDITION
SOURCE
: S-125PU1R5
: High
Low
45 dB(A)
33 dB(A)
: Under the unit 1.5m
: 230-240V, 1 phase, 50Hz
Octave Band Level (dB)
*0dB = 0.0002 µbar
Frequency at center of sound pressure band (Hz)
10
20
30
40
50
60
63 125 250 500 1000 2000 4000 8000
NC-40
NC-60
NC-50
NC-30
NC-20
Approximate
minimum
audible limit
for continuous
noise
MODEL
SOUND LEVEL
CONDITION
SOURCE
: S-140PU1R5
: High
Low
46 dB(A)
34 dB(A)
: Under the unit 1.5m
: 230-240V, 1 phase, 50Hz
Sec1.indb27Sec1.indb27 2012/03/0717:29:582012/03/0717:29:58