M-Series SEZ-KA Engineering Manual

SEZ Ducted Heat Pump Systems (August 2014)
SEZ-41
© 2014 Mitsubishi Electric US, Inc.
Due to continuing improvement, above specication may be subject to change without notice.
3-12. SOUND PRESSURE LEVELS
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
SPL(dB(A))
LINE
HEATING
46
50
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
SUZ-KA09NA.TH
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
SPL(dB(A))
LINE
HEATING
49
51
OUTDOOR UNIT
MICROPHONE
1m
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
SUZ-KA12NA.TH
COOLING
FUNCTION
SPL(dB(A)) LINE
HEATING
54
56
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
SUZ-KA18NA.TH
OUTDOOR UNIT
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
COOLING
FUNCTION
SPL(dB(A))
LINE
HEATING
49
51
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
SUZ-KA15NA.TH
(2) Outdoor Unit