Engineering Manual
20 | PRODUCT DATA
Single Zone High Eciency Standard Wall Mount Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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ACOUSTIC DATA
Outdoor Units
• Measurements are taken 3.3 ft away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of
±1.
• Data is valid at nominal operation conditions. Operating conditions
are assumed to be standard.
• Reference acoustic pressure 0dB=20μPa
• Sound pressure levels are tested in an anechoic chamber under
ISO Standard 3745, and may be different according to the test
condition or equipment.
• 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 12: High Efciency Outdoor Unit Sound Level Measurement.
Table 7: High Efciency Wall Mount Outdoor Unit Acoustic Data.
3.3 ft. (1)
Center of
Outdoor Unit
Unit : ft. (m)
Model
Sound Pressure Levels (dB[A])
Cooling (Max.) Heating (Max.)
LSU090HSV5
47 51
LSU120HSV5
47 51
LSU181HSV5
55 55
Outdoor Unit Sound Pressure Measurement
Outdoor Unit Sound Pressure Levels
LSU090HSV5/ LSU120HSV5 Cooling and Heating Sound Pressure Diagrams
Figure 13: LSU090/120HSV5 Cooling Sound Pressure Level Diagram.
Figure 14: LSU090/120HSV5 Heating Sound Pressure Level Diagram.