1

1-10 Noise Criterion Curves

Concealed Duct Type

MODEL : UH2442

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, 1 Phase, 60 Hz

dB

60

 

 

 

 

 

 

LEVEL,

50

 

 

 

 

 

NC-50

PRESSURE

40

 

 

 

 

 

NC-40

 

 

 

 

 

 

 

 

 

 

 

 

 

OCTAVE BAND SOUND

30

 

 

 

 

 

NC-30

20

APPROXIMATE

 

 

 

NC-20

 

THRESHOLD OF

 

 

 

 

 

 

 

 

 

HEARING FOR

 

 

 

 

 

CONTINUOUS

 

 

 

 

10

NOISE

 

 

 

 

 

63

125

250

500

1000

2000 4000 8000

0.0002(0bar)dB=

BAND CENTER FREQUENCIES, Hz

 

 

 

 

 

1761_U_I

1. Specifications

MODEL : UH3642

SOUND LEVEL : HIGH 38 dB(A), NC 30 / LOW 31 dB(A), NC 21

CONDITION : Under the unit 4.9 ft.

SOURCE

: 208 - 230 V, 1 Phase, 60 Hz

dB

60

 

 

 

 

 

 

LEVEL,

 

 

 

 

 

 

50

 

 

 

 

 

NC-50

PRESSURE

 

 

 

 

 

40

 

 

 

 

 

NC-40

 

 

 

 

 

 

 

 

 

 

 

 

 

OCTAVE BAND SOUND

30

 

 

 

 

 

NC-30

20

APPROXIMATE

 

 

 

NC-20

 

THRESHOLD OF

 

 

 

 

 

 

 

 

 

HEARING FOR

 

 

 

 

 

CONTINUOUS

 

 

 

 

 

10

NOISE

 

 

 

 

 

63

125

250

500

1000

2000 4000 8000

0.0002(0bar)dB=

BAND CENTER FREQUENCIES, Hz

 

 

 

 

 

1762_U_I

SM830082

I - 92

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Image 96
Sanyo KH2442 / CH2442, XH3642 / CH3642, XH4242 / CH4242, XH2442 / CH2442 Noise Criterion Curves Concealed Duct Type, Level