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9. Operation noise (sound pressure)
9-1. Noise level curve
¢ Model: AOHG18KBTB
Cooling
80
70
60
50
40
30
20
10
0
63
125
250
Octave band center frequency, Hz
¢ Model: AOHG22KBTB
Cooling
80
70
60
50
40
30
20
10
0
63
125
250
Octave band center frequency, Hz
9-1. Noise level curve
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
500
1,000
2,000
4,000
8,000
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
500
1,000
2,000
4,000
8,000
Heating
80
70
60
50
40
30
20
10
0
63
125
250
Octave band center frequency, Hz
Heating
80
70
60
50
40
30
20
10
0
63
125
250
Octave band center frequency, Hz
- 91 -
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
500
1,000
2,000
4,000
8,000
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
500
1,000
2,000
4,000
8,000
9. Operation noise (sound pressure)
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