Johnson Controls JX Series Engineering Manual page 25

(2) Sound Pressure Level
JCHX0352N, JCHXR03652N
JCHDZ07263N, JCHDZR07263N
90
80
70
60
50
40
30
20
10
Overall
* 0 dB = 0.0002 µbar
25
Model
Sound Pressure Level
Cooling
Condition
Approximate
minimum audible
limit for continuous
noise
63 125 250
Frequency at center of sound pressure band (Hz)
JCHDZ09663N, JCHDZR09663N
JCHX03652N, JCHXR03652N
Front 51 dB (A)
Quiet Mode 48 dB (A)
3.3 ft. in front at height of 4.9 ft.
500 1000 2000
FORM 121.00-EG1
ISSUE DATE: 5/31/2012
Front
Quiet Mode
NC – 70
NC – 60
NC – 50
NC – 40
NC – 30
NC – 20
4000 8000
JOHNSON CONTROLS