9
5
NOISE CRITERIA CURVES
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
Test conditions,
Cooling: Dry-bulb temperature 27
ºC
Wet-bulb temperature 19
ºC
COOLING
FUNCTION
47
48
SPL(dB(A))
LINE
High
FAN SPEED
HEATING
Heating: Dry-bulb temperature 20
ºC
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
ºC
Wet-bulb temperature 19
ºC
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
38
37
SPL(dB(A))
LINE
High
FAN SPEED
HEATING
Heating: Dry-bulb temperature 20
ºC
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
ºC
Wet-bulb temperature 19
ºC
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
40
40
SPL(dB(A))
LINE
High
FAN SPEED
HEATING
Heating: Dry-bulb temperature 20
ºC
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
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
MLZ-KP25VF
MLZ-KP35VF
MLZ-KP50VF
INDOOR UNIT
CEILING
GRILLE
MICROPHONE
1.4m
OBH801
