Noise Criteria Curves - Mitsubishi Electric MUCFH-GA35VB Service Manual

4

NOISE CRITERIA CURVES

MUCFH-GA35VB -
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)
Heating : Dry-bulb temperature 7: Wet-bulb temperature
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MUCFH-GA60VB -
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)
Heating : Dry-bulb temperature 7: Wet-bulb temperature
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
E1
SPL(dB )
FUNCTION
(A)
COOLING
49
HEATING
500 1000 2000 4000
E1
FUNCTION SPL(dB )
(A)
COOLING
53
HEATING
500 1000 2000 4000
MUCFH-GA50VB -
LINE
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature (24:)
6:
Heating : Dry-bulb temperature 7: Wet-bulb temperature
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
8000
63
LINE
6:
NC-70
MICROPHONE
NC-60
NC-50
NC-40
NC-30
NC-20
8000
8
E1
FUNCTION SPL(dB
COOLING
52
HEATING
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
OUTDOORUNIT
1m
) LINE
(A)
6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000