1.6Ar.th; 1.6Ar.th-T - Mitsubishi Electric SLH Series Technical & Service Manual

NOISE CRITERION CURVES
SLH-1AR.TH
SLH-1AR .TH
1
SL-1AR.TH
SL-1AR.TH-T
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SLH-2AR.TH
SLH-2AR .TH
1
SL-2AR.TH
SL-2AR.TH-T
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.
<50Hz>
NOTCH SPL(dB) LINE
Hi 36
Me 34
Lo
31
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
<50Hz>
NOTCH SPL(dB) LINE
Hi 40
Me 38
Lo
35
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SLH-1.6AR.TH
SLH-1.6AR .TH
1
SL-1.6AR.TH
SL-1.6AR.TH-T
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
CEILING
Ambient temperature 27:
Test conditions are based on JIS Z8731
33
NOTCH SPL(dB)
Hi 39
Me 37
Lo
34
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
1.5m
MICROPHONE
<50Hz>
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
UNIT