7
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
High
SPEED
HEATING
46
46
Heating : Dry-bulb temperature 7
:
Wet-bulb temperature 6
:
MUZ-A09YV -
MUZ-A09YVH -
E1
E1
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
High
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
MUZ-A12YV -
MUZ-A12YVH -
E1
E1
OB328 A--1qxp 04.4.26 4:49 PM Page 7
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