Table of Contents
Advertisement
1
1-8. Noise Criterion Curves
Concealed-Duct Type
MODEL
: SPW-UR184GH56 (A/B)
SOUND LEVEL :
CONDITION
: Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V,
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63
Frequency at center of sound pressure band (Hz)
MODEL
: SPW-UR364GH56 (A/B)
SOUND LEVEL :
CONDITION
: Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V , Single Phase, 50Hz
60
50
40
30
Approximate
20
minimum audible
limit for
continuous noise
10
63
Frequency at center of sound pressure band (Hz)
REMARKS: 1. Value obtained in the actual place where the unit is
2. The test results were obtained from an anechoic room.
3. The layout of the testing condition is shown at right.
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.
SPW-UR184SH56B
SPW-U185H
SPW-U185SHT
STRONG 30 dB(A), NC 23 / WEAK 25 dB(A), NC 17
Single Phase, 50 Hz
125 250
500 1000 2000 4000 8000
SPW-UR364SH56B
SPW-U365H
SPW-U365SHT
STRONG 38 dB(A), NC 30 / WEAK 31 dB(A), NC 21
125 250
500 1000 2000 4000 8000
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.
MODEL
SOUND LEVEL : STRONG 34 dB(A), NC 22 / WEAK 27 dB(A), NC 18
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
Approximate
20
NC-20
minimum audible
limit for
continuous noise
10
63
Frequency at center of sound pressure band (Hz)
MODEL
SOUND LEVEL :
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
Approximate
20
NC-20
minimum audible
limit for
continuous noise
10
Frequency at center of sound pressure band (Hz)
Air discharge
(Concealed-Duct Type)
1-98
Both 50Hz / 60Hz
: SPW-UR254GH56 (A/B)
SPW-UR254SH56B
SPW-U255H
SPW-U255SHT
: Under the unit 1.5 m
Single Phase, 50 Hz
: 220 - 230 - 240 V,
125 250
500 1000 2000 4000 8000
: SPW-UR484GH56 (A/B)
SPW-UR484SH56B
SPW-U485H
SPW-U485SHT
STRONG 40 dB(A), NC 33 / WEAK 33 dB(A), NC 25
: Under the unit 1.5 m
: 220 - 230 - 240 V ,
Single Phase, 50Hz
63
125 250
500 1000 2000 4000 8000
Auxiliary Duct
of 2 m length
Unit
1.5 m directly below unit
Strong
Weak
NC-50
NC-40
NC-30
NC-20
NC-50
NC-40
NC-30
NC-20
Auxiliary Duct
of 1 m length
Air intake
- Quick Links:
- Technical Data
- Service Manual
- Unit Specifications
Hide quick links:
Advertisement
Chapters
Table of Contents
