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M-AP-001-EN Rev. Q
Chapter 15.0 Sound and Power Specifications
15.1 TTS300 and TTS400 Sound Power Measurements
The sound power levels on the TTS300 and TTS400 compressors are measured in compliance with ISO
9614-1 (1993) and are given in decibels and in A-scale dB(A).
Three series of sound power measurements were performed on the unit while in two (2) different modes:
• For TTS300: 250kW (70 ton) refrigeration capacity
• 315kW (90 ton) refrigeration capacity
For TTS400:
• 420kW (120 ton) refrigeration capacity
• 525kW (150 ton) refrigeration capacity
15.1.1 Results
The sound power measured under each operational mode is presented in "Table 15-1 Sound Power
Measurements for TTS300" and "Table 15-2 Sound Pressure Calculation for TTS300", and "Table 15-4
Sound Power Measurements, TTS400 Compressor", and "Table 15-5 Sound Pressure Calculation,
TTS400 Compressor" presents the results of sound pressure calculations for various distances while the
compressor is installed on top of a building.
Disclaimer
• The sound data below should be used as a guide only.
• The following sound measurements are based on a specific physical setup, such as suction/discharge
piping, evaporator and condensers, as well as specific pressure ratios. Any OEM system design would not
necessarily match these conditions.
• OEMs are responsible for their system sound level measurements and their published data.
Below are the results from “Sound Power Measurements on a Turbocor TTS300 Compressor.
Table 15-1 Sound Power Measurements for TTS300
Table 15-2 Sound Pressure Calculation for TTS300
Operation Mode
Sound Power
(A-Scale)
dBA
Sound Power
(Linear Scale)
dB
Dominant Frequency
250 kW
81.5
81.5
1070 Hz
315 kW
86.0
85.5
1180 Hz
Distance in
Relation to Compressor
(Meters)
Operational Mode of Compressor (Capacity)
250 kW (70 Ton) dBA
315 kW (90 Ton) dBA
1
73.5
78.0
1.5
70.0
70.0
3
64
68.5
5
59.5
64.0
8
55.5
60.0
Содержание TGH Series
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