JOHNSON CONTROLS
76
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
SECTION 4 - TECHNICAL DATA
LD20184
B Side
A Side
1
4
2
3
5
FIGURE 26 -
SAMPLE SOUND TESTING
LOCATION* OVERALL
OCTAVE BAND
31.5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz
2 kHz
4 kHz
8 kHz 16 kHz
1
78/87
36/70
52/78
65/82
62/71
63/67
66/66
70/69
66/63
60/57
49/47
2
76/89
43/77
55/80
65/82
64/73
61/64
65/64
66/64
63/61
55/55
42/40
3
79/93
50/85
57/80
69/83
65/73
61/63
62/62
66/65
65/63
61/58
38/36
4
80/88
40/74
52/77
64/79
59/67
58/62
66/66
70/69
67/66
63/61
41/39
5
67/82
35/73
42/69
60/77
53/62
51/55
54/54
53/52
48/47
34/33
25/25
* Position of Measuring instrument
Height:1.5 m, Horizon:1.0 m (from chiller-heater surface)
NOTE:
These data are reference value, as the chiller-heater unit was not covered with the thermal insulation materials and the water pipes
(for chilled/hot water, and cooling water) were temporary during the measurement.
Evaporator Side
Background
Noise
Generator Side
(Burner Side)
(Flue Gas
Duct Side)
