Mitsubishi Electric PQHY-P200-900Y(S)LM-A, Data Book

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31
WY
MEE15K036
5. SOUND LEVELS
HEAT SOURCE
 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-P400, 450, 500, 550, 600YSLM-A
Measurement
location
1m
1m
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 50/60Hz 59.5 49.0 53.0 47.0 45.5 40.5 40.0 30.5 51.0
Low noise mode 50/60Hz 69.5 48.5 47.5 45.0 42.5 37.5 35.0 28.5 49.0
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 50/60Hz
Low 50/60Hz
Sound level of PQHY-P500YSLM-A
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 50/60Hz 69.5 48.5 47.5 45.0 42.5 37.5 35.0 28.5 49.0
Low noise mode 50/60Hz 44.5 45.0 41.5 46.0 43.0 36.0 33.5 25.0 47.0
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 50/60Hz
Low 50/60Hz
Sound level of PQHY-P400YSLM-A
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 50/60Hz 57.5 63.0 57.5 49.0 47.5 43.5 45.0 36.0 55.0
Low noise mode 50/60Hz 68.0 49.5 47.0 46.0 44.0 39.5 36.0 29.5 49.5
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 50/60Hz
Low 50/60Hz
Sound level of PQHY-P550YSLM-A
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 50/60Hz 67.0 49.0 51.0 46.0 44.5 39.5 38.0 29.5 50.0
Low noise mode 50/60Hz 66.5 47.0 45.5 45.5 43.0 37.0 34.5 27.0 48.0
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 50/60Hz
Low 50/60Hz
Sound level of PQHY-P450YSLM-A
63 125 250 500 1k 2k 4k 8k dB(A)
Standard 50/60Hz 54.0 66.0 59.5 50.0 48.5 45.5 47.0 38.5 57.0
Low noise mode 50/60Hz 66.0 50.0 46.0 47.0 45.0 40.5 37.0 30.0 50.0
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 50/60Hz
Low 50/60Hz
Sound level of PQHY-P600YSLM-A
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