Johnson Controls JX Series Engineering Manual page 90

FORM 121.00-EG1
ISSUE DATE: 5/31/2012
Slim Concealed Duct, Standard and Slim (JU, JUM Type)
Noise Criterion Curves
MODEL
SOUND LEVEL :
CONDITION
SOURCE
60
50
40
1
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
2
Frequency at center of sound pressure band (Hz)
3
MODEL
SOUND LEVEL :
4
CONDITION
SOURCE
60
5
50
40
6
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
7
NOISE
10
Frequency at center of sound pressure band (Hz)
8
JOHNSON CONTROLS
: JUHX0762N
JUHX0962N
JUHX1262N
HIGH 29 dB (A), NC 20 / LOW 22 dB(A), NC13
: Under the unit 4.9 ft.
: 208 - 230 V, Single-phase, 60 Hz
63 125 250 500 1000 2000 4000 8000
: JUHX1862N
JUHX2462N
HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC18
: Under the unit 4.9 ft.
: 208 - 230 V, Single-phase, 60 Hz
63 125 250 500 1000 2000 4000 8000
MODEL
SOUND LEVEL :
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
20
APPROXIMATE
NC-20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
Frequency at center of sound pressure band (Hz)
NC-50
NC-40
NC-30
NC-20
: JUHX1562N
HIGH 30 dB(A), NC 23 / LOW 25 dB(A), NC17
: Under the unit 4.9 ft.
: 208 - 230 V, Single-phase, 60 Hz
63 125 250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
90