Noise Criteria Curves - Mitsubishi Electric MUZ-FA25VA Service Manual

4

NOISE CRITERIA CURVES

MUZ-FA25VA -
E1
MUZ-FA25VAH -
E1
FAN SPEED
High
Med.
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
FUNCTION SPL(dB(A)) LINE
COOLING 46
HEATING 46
6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MUZ-FA35VA -
E1
MUZ-FA35VAH -
FAN SPEED
High
Med.
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
OUTDOORUNIT
1m
MICROPHONE
7
E1
FUNCTION SPL(dB(A)) LINE
COOLING 47
HEATING 48
500 1000 2000 4000 8000
6:
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20