18 | PRODUCT DATA
Single Zone W
all Mounted Extended Piping Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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INDOOR UNIT ACOUSTIC DATA
Figure 4: Indoor Unit Sound Levels
2.62 ft
3.28 ft
Microphone
Model
H
M
L
LSN243HLV
49
44
40
LSN303HLV
49
44
40
LSN363HLV
49
44
40
Table 7: Indoor Unit Sound Pressure Data
• Measurements are taken 3.28 ft away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of
±3.
• Sound pressure levels are tested in an anechoic chamber under
ISO Standard 3745.
• Sound level will vary depending on a range of factors including the
construction (acoustic absorption coefficient) of a particular room in
which the unit was installed.
Figure 5: LSU243HLV, LSU303HLV, LSU363HLV
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (0dB = 20μPa)
10
20
30
40
50
60
70
80
63
125
250
500 1000 2000 4000 8000
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
