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24 | PRODUCT DATA
Single-Zone LGRED° Four-Way Ceiling-Cassette System Engineering Manual
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ACOUSTIC DATA
Outdoor Units
Figure 17: Four-Way Ceiling Cassette Outdoor Unit Sound Power Level Diagrams.
• 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
• 5HIHUHQFHDFRXVWLFLQWHQVLW\G% (ȝ:P
2
Table 11: Four-Way Ceiling Cassette Outdoor Unit Sound Power Levels
(dB[A]).
Model Sound Power Levels (dB[A])
LUU180HHV 67
LUU240HHV 67
LUU360HHV 69
LUU420HHV 71
LUU480HHV 71
LUU180HHV, LUU240HHV
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
120.0
125 250 500 1000 2000 4000 8000
Sound Power Level (0dB = 10E-6ȝW/m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
NR-95
NR-100
NR-105
NR-110
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
120.0
125 250 500 1000 2000 4000 8000
Sound Power Level (0dB = 10E-6ȝW/m
2
)
Octave Band Center Frequency (Hz)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
NR-95
NR-100
NR-105
NR-110
LUU360HHV
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
120.0
125 250 500 1000 2000 4000 8000
S
oun
d
P
ower
L
eve
l
(0dB
=
10E
-
6
ȝW/m
2
)
NR-70
NR-65
NR-60
NR-55
NR-50
NR-45
NR-40
NR-35
NR-30
NR-75
NR-25
NR-20
NR-80
NR-85
NR-90
NR-95
NR-100
NR-105
NR-110
LUU420HHV, LUU480HHV
Octave Band Center Frequency (Hz)
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