Mitsubishi Electric MU-GA35VB-E1, Руководство по обслуживанию

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5
NOISE CRITERIA CURVES
4
NOISE CRITERIA CURVES
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
Test conditions,
Cooling : Dry-bulb temperature 27
: Wet-bulb temperature 19 :
High
46
SPL(dB
(A)
) LINE
FAN SPEED
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
Test conditions,
Cooling : Dry-bulb temperature 27
: Wet-bulb temperature 19 :
High
44
SPL(dB
(A)
) LINE
FAN SPEED
MCF-GA35VB -
E1
MCF-GA50VB -
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
Test conditions,
Cooling : Dry-bulb temperature 27
: Wet-bulb temperature 19 :
High 48
SPL(dB
(A)
) LINE FAN SPEED
INDOOR UNIT
WALL
1m
1m
MICROPHONE
MCF-GA60VB -
E1
OB382--1.qxp 04.12.21 16:45 Page 5