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Figure 14: Four-Way Ceiling Cassette Outdoor Unit
Sound Pressure Level Measurement Location.
4.9 ft.
D
3.3 ft.
Figure 15: Four-Way Ceiling Cassette Outdoor Unit
Sound Pressure Level Diagrams.
LUU090HV
LUU240HV
80
▲ Cooling
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63
125
250
500
1000
2000 4000
Octave Band Center Frequency (Hz)
• Measurements taken with no attenuation and units operating at full load normal
operating condition.
• Sound level will vary depending on a range of factors such as construction (acous-
tic absorption coefficient) of particular area in which the equipment is installed.
• Sound pressure levels are measured in dB(A)±1.
• Tested in anechoic chamber per ISO Standard 3745.
Table 9: Four-Way Ceiling Cassette Outdoor Unit Sound Levels (dB[A]).
LUU360HV, LUU420HV
80
75
Heating
70
65
60
NC-65
55
NC-60
NC-55
50
NC-50
45
NC-45
40
NC-40
35
NC-35
30
NC-30
25
NC-25
20
Approximate
NC-20
Hearing
15
NC-15
10
8000
63
125
Octave Band Center Frequency (Hz)
©
Sound Pressure Levels (dB[A])
Model
Cooling
LUU090HV
LUU120HV
LUU180HV
LUU240HV
LUU360HV
LUU420HV
LUU120HV
Cooling
Heating
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250
500
1000
2000
4000
8000
ACOUSTIC DATA
Outdoor Units
Sound Power Levels
Heating
47
51
49
52
48
52
48
52
52
54
52
54
LUU180HV
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63
125
250
500
1000
Octave Band Center Frequency (Hz)
PRODUCT DATA | 27
(dB[A])
-
-
67
67
65
66
Cooling
Heating
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
2000 4000
8000
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