Sanyo SPW-C256VH, Technical Data & Service Manual

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1
1-301
1-8. Noise Criterion Curves
Concealed-Duct Type
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
MODEL
SOUND LEVEL
CONDITION
SOURCE
: SPW-UR364GH56 (A/B)
SPW-UR364SH56B
SPW-U365H (N)
SPW-U365SH (T)
: STRONG 38 dB(A), NC 30 / WEAK 31 dB(A), NC 21
: Under the unit 1.5 m
: 220 - 230 - 240 V, Single Phase, 50 Hz
Sound pressure level (dB) (0dB = 0.0002 μbar)
Frequency at center of sound pressure band (Hz)
1. Value obtained in the actual place where the unit is
installed may be slightly higher than the values shown
in this graph because of the conditions of operation,
the structure of the building, the background noise and
other factors.
2. The test results were obtained from an anechoic
room.
3. The layout of the testing condition is shown at right.
REMARKS:
NOTE
To evaluate the noise level, the maximum value of the measured sound pressure level is used. Read the value at
each frequency level (on horizontal axis, center of the sound pressure band) from 63 Hz to 8000 Hz, and select the
corresponding maximum value indicated on the vertical axis.
MODEL
SOUND LEVEL
CONDITION
SOURCE
: SPW-UR484 / 604GH56 (A/B)
SPW-UR484 / 604SH56B
SPW-U485 / 605H (N)
SPW-U485 / 605SH (T)
: STRONG 40 dB(A), NC 33 / WEAK 33 dB(A), NC 25
: Under the unit 1.5 m
: 220 - 230 - 240 V, Single Phase, 50 Hz
Sound pressure level (dB) (0dB = 0.0002 μbar)
APPROXIMATE
THRESHOLD OF
HEATING FOR
CONTINUOUS
NOISE
Frequency at center of sound pressure band (Hz)
Auxiliary Duct
of 2 m length
Air discharge
Unit
Air intake
1.5 m
1.5 m directly below unit
(Concealed-Duct Type)
Auxiliary Duct
of 1 m length
APPROXIMATE
THRESHOLD OF
HEATING FOR
CONTINUOUS
NOISE
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