LG LC188HHV4 Engineering Manual page 22

ACOUSTIC DATA
Indoor Units
• Data is valid under diffuse field conditions.
• Data is valid under nominal operating conditions.
• Sound power level is measured using rated conditions, and tested
in a reverberation room per ISO 3741 standards.
• Sound power level will vary depending on a range of factors such
as construction (acoustic absorption coefficient) of particular area
in which the equipment is installed
•
Figure 14: Four-Way Ceiling Cassette Indoor Unit Sound Power Level Diagrams.
LCN249HV
120.0
110.0
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
125 250 500 1000 2000
Octave Band Center Frequency (Hz)
22 | PRODUCT DATA
2
120.0
110.0
NR-110
100.0
NR-105
NR-100
90.0
NR-95
NR-90
80.0
NR-85
NR-80
70.0
NR-75
NR-70
60.0
NR-65
NR-60
50.0
NR-55
NR-50
40.0
NR-45
NR-40
30.0
NR-35
NR-30
20.0
NR-25
NR-20
10.0
4000 8000 125 250
Octave Band Center Frequency (Hz)
©
Table 9: Four-Way Ceiling Cassette Indoor Unit Sound Power Levels
(dB[A]).
Model
LCN188HV4
LCN249HV
LCN369HV
LCN429HV
LCN489HV
LCN369HV
NR-110
NR-105
NR-100
NR-95
NR-90
NR-85
NR-80
NR-75
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-25
NR-20
500 1000 2000 4000 8000
Sound Power Levels (dB[A])
-
57
61
62
62
LCN429HV, LCN489HV
120.0
110.0
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
125 250 500 1000 2000
Octave Band Center Frequency (Hz)
NR-110
NR-105
NR-100
NR-95
NR-90
NR-85
NR-80
NR-75
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-25
NR-20
4000 8000