Noise Criteria Curves - Mitsubishi Electric MSZ-EF VE Series Service Manual

NOISE CRITERIA CURVES

4
MXZ-2D33VA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
MXZ-2D42VA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
OBH626E
FAN SPEED FUNCTION SPL(dB ) LINE
(A)
High Cooling 49
High Heating 50
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
FAN SPEED FUNCTION SPL(dB ) LINE
(A)
46
High Cooling
High Heating 51
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MXZ-2D40VA
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
MXZ-2D53VA
MXZ-2D53VAH
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
14
FAN SPEED FUNCTION SPL(dB )
(A)
High Cooling 49
High Heating 50
250 500 1000 2000 4000 8000
FAN SPEED FUNCTION SPL(dB )
(A)
50
High Cooling
High Heating 53
250 500 1000 2000 4000 8000
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20