TD831077
IV - 95
4
W-ECO MULTI SYSTEM Unit Specifications
7-4. Noise criterion curves
MODEL : SPW-UR93GHN56, UR123GHN56
SOUND LEVEL :
HIGH 29 dB(A), NC 20 / LOW 22 dB(A), NC 13
CONDITION : Under the unit 1.5 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
7. Concealed Duct Type
1759_U_I
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
NC-50
NC-40
NC-30
NC-20
MODEL : SPW-UR183GHN56
SOUND LEVEL :
HIGH 30 dB(A), NC 23 / LOW 25 dB(A), NC 17
CONDITION : Under the unit 1.5 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
MODEL : SPW-UR253GHN56
SOUND LEVEL :
HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18
CONDITION : Under the unit 1.5 m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
1760_U_I
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
NC-50
NC-40
NC-30
NC-20
1761_U_I
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
NC-50
NC-40
NC-30
NC-20