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PRODUCT DATA | 23
Product Data
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ACOUSTIC DATA
Outdoor Units
• 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 10: Four-Way Ceiling Cassette Outdoor Unit Sound Pressure Levels (dB[A]).
Figure 15: Four-Way Ceiling Cassette Outdoor Unit
Sound Pressure Level Measurement Location.
3.3 ft.
4.9 ft.
D
Figure 16: Four-Way Ceiling Cassette Outdoor Unit Sound Pressure Level Diagrams.
Model
Sound Pressure Levels (dB[A])
Cooling Heating
LUU180HHV 51 52
LUU240HHV 51 52
LUU360HHV 52 54
LUU420HHV 54 56
LUU480HHV 54 56
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
02 = Bd0( leveL erusserP dnuoS dnaB evatcO ȝPa )
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Cooling
Heating
LUU180HHV, LUU240HHV
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level (dB = 20ȝPa)
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Ŷ Cooling
ŸHeating
LUU360HHV
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
63 125 250 500 1000 2000 4000 8000
02 = Bd0( leveL erusserP dnuoS dnaB evatcO ȝPa )
Octave Band Center Frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
Cooling
Heating
LUU420HHV, LUU480HHV
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