Mitsubishi Electric CITY MULTI, Data Book

Page: 135 / 372

MEES19K187
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124
5. SOUND LEVELS
WY-Series-575V
 Depending on the operation conditions, the unit generates noise caused by valve actuation, refrigerant flow, and
pressure changes when operating normally. Please consider to avoid location where quietness is required.
Measurement condition
PQHY-P288, 312, 336, 360ZSLMU-A1
Measurement
location
3-1/4ft.
(1m)
3-1/4ft.
(1m)
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 60Hz 51.0 53.0 60.5 49.5 51.5 50.5 53.0 46.0 59.0
Low noise mode 60Hz 69.5 48.5 49.5 47.0 49.0 45.0 48.0 43.5 54.5
When Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation
from Low noise mode automatically in the case that the operation condition is severe.
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-40
NC-30
NC-20
NC-60
NC-50
NC-70
Octave band central frequency (Hz)
Octave band sound level (dB)
Approximate minimum
audible limit on
continuous noise
Stand 60Hz
Low 60Hz
Sound level of PQHY-P336ZSLMU-A1
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 60Hz 78.5 56.5 55.0 51.0 51.0 46.5 43.5 36.5 57.0
Low noise mode 60Hz 57.0 56.5 50.5 46.5 46.5 45.0 47.5 43.5 53.5
When Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation
from Low noise mode automatically in the case that the operation condition is severe.
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-40
NC-30
NC-20
NC-60
NC-50
NC-70
Octave band central frequency (Hz)
Octave band sound level (dB)
Approximate minimum
audible limit on
continuous noise
Stand 60Hz
Low 60Hz
Sound level of PQHY-P288ZSLMU-A1
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 60Hz 54.5 59.5 59.0 54.5 52.5 50.5 54.0 50.0 60.0
Low noise mode 60Hz 67.5 53.5 52.0 50.0 48.5 47.0 51.0 43.5 56.0
When Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation
from Low noise mode automatically in the case that the operation condition is severe.
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-40
NC-30
NC-20
NC-60
NC-50
NC-70
Octave band central frequency (Hz)
Octave band sound level (dB)
Approximate minimum
audible limit on
continuous noise
Stand 60Hz
Low 60Hz
Sound level of PQHY-P360ZSLMU-A1
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 60Hz 75.5 55.0 58.5 50.5 51.5 49.0 50.5 43.5 58.0
Low noise mode 60Hz 66.5 54.0 50.0 47.0 48.0 45.0 48.0 43.5 54.0
When Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation
from Low noise mode automatically in the case that the operation condition is severe.
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-40
NC-30
NC-20
NC-60
NC-50
NC-70
Octave band central frequency (Hz)
Octave band sound level (dB)
Approximate minimum
audible limit on
continuous noise
Stand 60Hz
Low 60Hz
Sound level of PQHY-P312ZSLMU-A1
0000005753.BOOK 124 ページ ２０２０年２月２８日 金曜日 午前１１時１７分