10
NOISE CRITERIA CURVES
4
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 35
:
Wet-bulb temperature (24
:
)
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
SPL(dB(A))
LINE
HEATING
46
46
Heating : Dry-bulb temperature 7
:
Wet-bulb temperature 6
:
MUZ-GA25VA
MUZ-GA25VAH
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
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
SPL(dB(A))
LINE
FAN SPEED
HEATING
47
48
Test conditions
Cooling : Dry-bulb temperature 35
:
Wet-bulb temperature (24
:
)
Heating : Dry-bulb temperature 7
:
Wet-bulb temperature 6
:
OUTDOORUNIT
MICROPHONE
1m
High
Med.
MUZ-GA35VA
MUZ-GA35VAH
OB379 C--1qxp 07.2.1 2:25 PM Page 10
