Sanyo DHX4852 - Manual (Page 161)

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4-47
W-2WAY ECO-i SYSTEM Unit Specifications
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MODEL : UHX0752
UHX1252
SOUND LEVEL : HIGH 29 dB(A), NC 20 / LOW 22 dB(A), NC 13
CONDITION : Under the unit 4.9 ft
SOURCE : 208 - 230 V, Single-phase, 60 Hz
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
MODEL : UHX1852
SOUND LEVEL : HIGH 30 dB(A), NC 23 / LOW 25 dB(A), NC 17
CONDITION : Under the unit 4.9 ft
SOURCE : 208 - 230 V, Single-phase, 60 Hz
MODEL : UHX2452
SOUND LEVEL : HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18
CONDITION : Under the unit 4.9 ft
SOURCE : 208 - 230 V, Single-phase, 60 Hz
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
Sound Pressure Le
ve
l (dB)
(0 dB = 0.0002
µ
bar
)
Sound Pressure Le
ve
l (dB)
(0 dB = 0.0002
µ
bar
)
Frequency at center of sound pressure band (Hz) Frequency at center of sound pressure band (Hz)
Sound Pressure Le
ve
l (dB)
(0 dB = 0.0002
µ
bar
)
Frequency at center of sound pressure band (Hz)
60Hz
4-4. Noise Criterion Curves
4. Concealed Duct Type (U Type)
TD831138-02_W-2WAY.indb 47 2007/07/26 14:32:59