NOISE CRITERIA CURVES
6
MXZ-2A40VA
90
80
70
60
50
40
30
20
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
BAND CENTER FREQUENCIES, Hz
MXZ-3A54VA
90
80
70
60
50
40
30
20
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
BAND CENTER FREQUENCIES, Hz
FAN SPEED
FUNCTION
SPL(dB
)
LINE
(A)
High
Cooling
47
High
Heating
48
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
48
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500
1000
2000
4000
8000
MXZ-2A52VA
90
80
70
60
50
40
30
20
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
MXZ-4A71VA
90
80
70
60
50
40
30
20
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125
250
BAND CENTER FREQUENCIES, Hz
27
FAN SPEED
FUNCTION
SPL(dB
)
(A)
High
Cooling
49
High
Heating
50
500
1000
2000
4000
8000
BAND CENTER FREQUENCIES, Hz
FAN SPEED
FUNCTION
SPL(dB
)
LINE
(A)
High
Cooling
48
High
Heating
50
500
1000
2000
4000
8000
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20