Engineering Manual

FOUR-WAY VAHU INDOOR UNITS
Acoustic Data
Table 104: Vertical Air Handling Unit Sound Power Levels (dB[A]).
Model No.
Sound Power Levels (dB[A])
High Fan Speed
LVN180HV4 59
LVN240HV4 60
LVN360HV4 61
• 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 level will vary depending on a range of factors such as
construction (acoustic absorption coefficient) of particular area in
which the equipment is installed.
• Reference acoustic intensity: 0dB = 10E-6μW/m2
Figure 226: Sound Power Level Diagrams.
LVN180HV4 LVN240HV4 LVN360HV4
VERTICAL-HORIZONTAL | 169
Vertical-Horizontal Air Handling Unit
Due to our policy of continuous product innovation, some specications may change without notication.
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