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M-AP-001-EN Rev. N
M-AP-001-EN Rev. N
Sound and Power Specications
Table 15-3 - Sound Power at
Third Octave Band, TT300
Compressor
Sound Power, 250kW (70 Ton) Sound Power, 315kW (90 Ton)
Third octave band
(Hz)
Linear scale (dB) A-weighted (dBA)
Third octave band
(Hz)
Linear scale (dB) A-weighted (dBA)
160 55.5 41.8 160 59.6 45.8
200 62.0 51.7 200 64.9 54.9
250 63.9 55.6 250 67.7 59.5
315 68.7 62.0 315 69.9 63.4
400 66.9 62.3 400 66.6 62.2
500 71.5 68.6 500 65.7 62.6
630 60.2 58.4 630 71.8 69.8
800 65.1 64.5 800 67.7 67.2
1000 76.5 76.7 1000 70.5 70.6
1250 66.2 66.9 1250 82.3 83.0
1600 69.9 71.0 1600 72.6 73.9
2000 69.6 70.9 2000 73.3 74.7
2500 68.6 69.9 2500 72.8 74.3
3150 72.3 73.6 3150 75.3 76.7
4000 71.3 72.3 4000 74.6 75.8
Table 15-4 - Sound Power
Measurements
Table 15-5 - Sound Pressure
Calculation
Operation Mode
Sound Power
(A-Scale)
dBA
Sound Power
(Linear Scale)
dB
420 kW (120 Ton) 88.4 89.1
525 kW (150 Ton) 88.1 89.2
Distance in Relation to Compressor
(meters)
Operational Mode of Compressor
(Capacity)
420 kW
(120 Ton)
dBA
525 kW
(150 Ton)
dBA
1 80.5 80
1.5 77 76.5
3 71 70.5
5 66.5 66
8 62.3 62
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