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9. Noise Criterion Curves
9.1 Indoor Unit
Notes:
-Sound measured at 1.5m away from the center of the unit.
-Data is valid at free field condition
-Data is valid at nominal operation condition
-Reference acoustic pressure OdB = 20µPa
-Sound level will vary depending on a range of factors such as
the construction -(acoustic absorption coefficient) of particular
room
in which the equipment is installed.
-The operating conditions are assumed to be standard.
Model
Power supply
(Outdoor )
Noise level dB(A)
H M L
IF2-XY 70M
220~240-1-50 49 46 41
IF2-XY 105M
220~240-1-50 50 46 42
IF2-XY 105M
380~415-3-50 50 46 40
IF2-XY 140M
380~415-3-50 54 50 46
IF2-XY 160M
380~415-3-50 54 47 42
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