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ページを印刷するSOUND POWER AND SOUND PRESSURE LEVELS
INDOOR UNIT
MAXIMUM
SPEED
CXE 30
SPEED
CXE 50
CXE 70
Sound Power Levels were obtained in full accordance with the direct method of BS EN ISO3174:2000. Levels are
shown in dB with a standard reference of 1 pW.
Sound Pressure Levels in dB(A) refer to semi-hemispherical radiation (wall or ceiling mounted) at a distance of 1.5m
from the front of the unit, with the fan operating at full speed.
OUTDOOR UNIT
MAXIMUM
SPEED
MCU+ 50
SPEED
MCU+ 80
MCU+ 90
MCU+ 100
MCU+ 130
MCU+ 165
MCU+ 150
MCU+ 180
Sound Power Levels were obtained in full accordance with the direct method of ISO 3741: 1988. Levels are shown in
dB with a standard reference of 1 pW.
Sound Pressure Levels in dB(A) refer to semi-hemispherical radiation (wall or floor mounted) at a distance of 3m from
the front of the unit, with the fan operating at full speed; (add 3dBA or 3NC for units at an intersection of a wall, add
1dBA or 1NC for high level wall mounted units).
SOUND POWER LEVELS
Frequency Hz
125
250
500
1K
69.1
67.7
67.6
65.6
71.7
69.2
69.1
67.1
70.1
68.2
68.6
66.1
SOUND POWER LEVELS
Frequency Hz
125
250
500
1K
74
68
67
71
69
68
82
72
69
79
74
72
73
70
70
73
70
70
73
70
70
73
72
72
2K
4K
62.2
56.0
63.2
58.5
63.2
57.5
2K
4K
66
61
54
65
60
54
69
63
57
69
64
58
69
65
57
69
66
58
69
66
58
69
66
58
5
SOUND PRESSURE
LEVELS
dB(A)
NC
55
48
56
50
56
49
SOUND PRESSURE
LEVELS
dB(A)
NC
49
44
49
43
52
47
53
47
52
47
57
51
57
51
59
53
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