Multi F Engineering Manual

TWO-WAY VAHU INDOOR UNITS
Acoustic Data
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• 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
(acoustic absorption coefficient) of particular area in which the equipment is
installed.
• Sound power levels are measured in dB(A).
• Tested in anechoic chamber per ISO Standard 3745.
)LJXUH Sound Pressure Level Measurement Location.
7DEOH Sound Pressure Levels (dB[A]).
)LJXUH Sound Pressure Level Diagrams.
Model No.
Sound Pressure Levels (dB[A]) (Cooling and Heating)
High Fan Speed Medium Fan Speed Low Fan Speed
LMVN240HV 43 42 41
LMVN360HV 45 44 43
3.3 ft.
3.3 ft.
With Case
Microphone
Octave Band Center Frequency (Hz)
Octave Band Sound Pressure Level (dB = 20μPa)
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Approximate
Hearing
Threshold
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Octave Band Sound Pressure Level (dB = 20μPa)
10
20
30
40
50
60
70
80
Octave Band Center Frequency (Hz)
63 125 250 500 1000 2000 4000 8000
LMVN240HV LMVN360HV
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144 | VERTICAL-HORIZONTA L
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F