90
8. Sound Data
Sound Pressure level
8-2. Indoor unit
1
AR4500
Unit: dB(A)
1m
1m
Microphone
Model
Turbo
Silent
AR18TXHZAWKNEU
41
28
AR24TXHZAWKNEU
45
29
•
NR Curve
4) AR18TXHZAWKNEU
5) AR24TXHZAWKNEU
NR 65
NR 60
NR 55
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
Hearing threshold
High
Silent
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
63
125
250
500
1000
2000
4000
8000
Sound
Pr
es
sur
e L
ev
el
(dB
)
Octave Band Center Frequency(Hz)
NR 65
NR 60
NR 55
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
Hearing threshold
High
Silent
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
63
125
250
500
1000
2000
4000
8000
Sound
Pr
es
sur
e L
ev
el
(dB
)
Octave Band Center Frequency(Hz)
NOTE
• Specifications may be subject to change without prior notice
- Sound pressure level is obtained in an anechoic room.
- Sound pressure level is a relative value, depending on the distance and acoustic environment.
- Sound pressure level may differ depending on operation condition.
- dBA = A-weighted sound pressure level
-
Reference acoustic pressure 0 dB = 20μPa
