90
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
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27°C
Wet-bulb temperature 19°C
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
43
44
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
Heating : Dry-bulb temperature 20°C
Wet-bulb temperature 15°C
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
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27°C
Wet-bulb temperature 19°C
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
37
37
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
Heating : Dry-bulb temperature 20°C
Wet-bulb temperature 15°C
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
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling : Dry-bulb temperature 27°C
Wet-bulb temperature 19°C
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
38
38
SPL(dB(A))
LINE
Super High
FAN SPEED
HEATING
Heating : Dry-bulb temperature 20°C
Wet-bulb temperature 15°C
INDOOR UNIT
WALL
1m
1m
MICROPHONE
MFZ-KA25VA
MFZ-KA35VA
MFZ-KA50VA
9
NOISE CRITERION CURVES