Sound Levels - Mitsubishi Electric CITY MULTI Data Book

5. SOUND LEVELS

5. SOUND LEVELS
Measurement condition
PQRY-P72, 96, 120TLMU-A1/YLMU-A1
Measurement
location
Sound level of PQRY-P72TLMU-A1/YLMU-A1
90
Stand 60Hz
Low
80
70
60
50
40
30
Approximate minimum
20
audible limit on
continuous noise
10
63 125 250 500
Octave band central frequency (Hz)
63 125
Standard 60Hz 66.5 45.5 44.5 42.0 39.5 34.5
Low noise mode 60Hz 41.5 42.0 38.5 43.0 40.0 33.0
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.
Sound level of PQRY-P96TLMU-A1/YLMU-A1
90
Stand 60Hz
Low
80
70
60
50
40
30
Approximate minimum
20
audible limit on
continuous noise
10
63 125 250 500
Octave band central frequency (Hz)
63 125
Standard 60Hz 56.5 46.0 50.0 44.0 42.5 37.5
Low noise mode 60Hz 66.5 45.5 44.5 42.0 39.5 34.5
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.
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.
For BC controller, it is recommended to be installed in places such as ceilings of corridor, rest rooms and plant rooms.
MEES19K187
3-1/4ft.
(1m)
60Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1k 2k 4k 8k
250 500 1k 2k 4k 8k dB(A)
32.0 25.5 46.0
30.5 22.0 44.0
60Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1k 2k 4k 8k
250 500 1k 2k 4k 8k dB(A)
37.0 27.5 48.0
32.0 25.5 46.0
Sound level of PQRY-P120TLMU-A1/YLMU-A1
90
Stand 60Hz
Low 60Hz
80
70
60
50
40
30
Approximate minimum
20
audible limit on
continuous noise
10
63 125 250 500
Octave band central frequency (Hz)
63 125 250
Standard 60Hz 51.0 63.0 56.5 47.0 45.5 42.5
Low noise mode 60Hz 63.0 47.0 43.0 44.0 42.0 37.5
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.
WR2-Series
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1k 2k 4k 8k
500 1k 2k 4k 8k dB(A)
44.0 35.5 54.0
34.0 27.0 47.0
213