Figure 2-8.8: KEM-60 DRS4 octave band level (in heating mode at rated compressor frequency)
Octave band sound level (dB
)
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
31.5
63
125
250
500
1000
2000
4000
8000
NR-90
NR-80
NR-70
NR-60
NR-50
NR-40
NR-30
NR-20
NR-10
NR-0
Octave band central frequency (Hz)
Figure 2-8.9: KEM-60 DRS4 KH octave band level (in heating mode at rated compressor frequency)
Octave band sound level (dB
)
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
31.5
63
125
250
500
1000
2000
4000
8000
NR-90
NR-80
NR-70
NR-60
NR-50
NR-40
NR-30
NR-20
NR-10
NR-0
Octave band central frequency (Hz)
Part 2 - Engineering Da
ta
DC Inverter Chiller
35