Engineering Manual

B-158
7
NOISE CRITERION CURVES
MSZ-EF09NAW
MSZ-EF09NAB
MSZ-EF09NAS
7-1. INDOOR UNIT
MSZ-EF12NAW
MSZ-EF12NAB
MSZ-EF12NAS
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
42
46
NC-10
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
42
45
NC-10