Mitsubishi Electric PQRY-P72TLMU-A Manual page 49

6. SOUND PRESSURE LEVELS
Measurement condition
PQRY-P288, 312, 336TSLMU-A/YSLMU-A
Sound level of PQRY-P288TSLMU-A/YSLMU-A
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 78.5 56.5 55.0 51.0 51.0
Low noise mode 60Hz 57.0 56.5 50.5 46.5 46.5
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.
Sound level of PQRY-P312TSLMU-A/YSLMU-A
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 75.5 55.0 58.5 50.5 51.5
Low noise mode 60Hz 66.5 54.0 50.0 47.0 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.
• • 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.
© 2017 Mitsubishi Electric US, Inc.
Sound level of PQRY-P336TSLMU-A/YSLMU-A
3-1/4ft.
(1m)
Measurement
location
Standard
Low noise mode
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.
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1k 2k 4k 8k
500 1k 2k 4k 8k dB(A)
46.5 43.5 36.5 57.0
45.0 47.5 43.5 53.5
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
1k 2k 4k 8k
500 1k 2k 4k 8k dB(A)
49.0 50.5 43.5 58.0
45.0 48.0 43.5 54.0
PQRY-P-T(S)LMU, Y(S)LMU (April 2017 Ver2)
90
Stand 60Hz
Low 60Hz
80
70
60
50
40
30
Approximate minimum
20
audible limit on
continuous noise
10
63 125 250 500 1k
Octave band central frequency (Hz)
63 125 250 500
60Hz 51.0 53.0 60.5 49.5 51.5
60Hz 69.5 48.5 49.5 47.0 49.0
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
2k 4k 8k
1k 2k 4k 8k dB(A)
50.5 53.0 46.0 59.0
45.0 48.0 43.5 54.5
WR2-49