MEES21K047
PQ
R
Y-
P-
Z(
S)
LM
U
-A
1
22
5. SOUND LEVELS
WR2-Series-575V
5. SOUND LEVELS
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.
Measurement condition
PQRY-P72, 96, 120ZLMU-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
63.0
56.5
47.0
45.5
42.5
44.0
35.5
54.0
Low noise mode
60Hz
63.0
47.0
43.0
44.0
42.0
37.5
34.0
27.0
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 60Hz
Low
60Hz
Sound level of PQRY-P120ZLMU-A1
63
125
250
500
1k
2k
4k
8k
dB(A)
Standard
60Hz
66.5
45.5
44.5
42.0
39.5
34.5
32.0
25.5
46.0
Low noise mode
60Hz
41.5
42.0
38.5
43.0
40.0
33.0
30.5
22.0
44.0
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 PQRY-P72ZLMU-A1
63
125
250
500
1k
2k
4k
8k
dB(A)
Standard
60Hz
56.5
46.0
50.0
44.0
42.5
37.5
37.0
27.5
48.0
Low noise mode
60Hz
66.5
45.5
44.5
42.0
39.5
34.5
32.0
25.5
46.0
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 PQRY-P96ZLMU-A1
0000006382.BOOK 22 ページ 2021年7月19日 月曜日 午後4時14分