Semi-hermetic compressors for R744 transcritical
Sound power level (one-third octave bands) and sound pressure levels
The measurements were taken with the refrigerant R744 (CO2) at operating frequency 50 Hz.
Evaporation temperature to = -10°C, pressure at the high pressure side (pHP) = 90 bar
The calculated sound pressure level in the last column refers to free field conditions with hemispherical sound propagation at a distance of 1 m.
The tolerance for all specifications is +/- 2 dB(A).
For the measured quantities and their units: Introduction
Series TE (2MTE .. 6CTE)
Compressor | Sound power level in dB(A) at different frequencies (one-third octave band) | Sound pressure level in dB(A) | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
80 Hz | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz | 6300 Hz | ||
2MTE-4 | 19.1 | 32.2 | 35.1 | 52.4 | 41.4 | 51.7 | 52.9 | 57.4 | 56.9 | 57.7 | 65.9 | 63 | 65 | 62.1 | 59.5 | 55 | 49 | 52.8 | 52.8 | 47.9 | 63.6 |
2MTE-5 | 19.7 | 32.8 | 35.7 | 53 | 42 | 52.3 | 53.5 | 58 | 57.5 | 58.3 | 66.5 | 63.6 | 65.6 | 62.7 | 60.1 | 55.6 | 49.6 | 53.4 | 53.4 | 48.5 | 64.2 |
2KTE-5 | 20.1 | 33.2 | 36.1 | 53.4 | 42.4 | 52.7 | 53.9 | 58.4 | 57.9 | 58.7 | 66.9 | 64 | 66 | 63.1 | 60.5 | 56 | 50 | 53.8 | 53.8 | 48.9 | 64.6 |
2KTE-7 | 20.5 | 33.6 | 36.5 | 53.8 | 42.8 | 53.1 | 54.3 | 58.8 | 58.3 | 59.1 | 67.3 | 64.4 | 66.4 | 63.5 | 60.9 | 56.4 | 50.4 | 54.2 | 54.2 | 49.3 | 65.0 |
4PTE-6 | 18.5 | 35.5 | 33.8 | 40.6 | 44.9 | 51.9 | 50.3 | 48.2 | 54.6 | 56.9 | 63.0 | 58.8 | 60.5 | 61.5 | 60.2 | 62.3 | 51.2 | 50.1 | 45.2 | 46.4 | 61.8 |
4PTE-7 | 18.8 | 35.8 | 34.1 | 40.9 | 45.2 | 52.2 | 50.6 | 48.5 | 54.9 | 57.2 | 63.3 | 59.1 | 60.8 | 61.8 | 60.5 | 62.6 | 51.5 | 50.4 | 45.5 | 46.7 | 62.1 |
4MTE-7 | 18.9 | 35.9 | 34.2 | 41.0 | 45.3 | 52.3 | 50.7 | 48.6 | 55.0 | 57.3 | 63.4 | 59.2 | 60.9 | 61.9 | 60.6 | 62.7 | 51.6 | 50.5 | 45.6 | 46.8 | 62.2 |
4MTE-10 | 19.2 | 36.2 | 34.5 | 41.3 | 45.6 | 52.6 | 51.0 | 48.9 | 55.3 | 57.6 | 63.7 | 59.5 | 61.2 | 62.2 | 60.9 | 63.0 | 51.9 | 50.8 | 45.9 | 47.1 | 62.5 |
4KTE-10 | 19.7 | 36.8 | 35.1 | 41.9 | 46.2 | 53.2 | 51.6 | 49.5 | 55.9 | 58.2 | 64.3 | 60.1 | 61.8 | 62.8 | 61.5 | 63.6 | 52.5 | 51.4 | 46.5 | 47.7 | 63.1 |
4JTE-10 | 27.2 | 35.3 | 30.0 | 38.3 | 49.2 | 59.5 | 50.7 | 49.8 | 57.0 | 65.1 | 66.5 | 67.1 | 68.0 | 69.7 | 74.7 | 59.7 | 63.4 | 65.7 | 64.0 | 57.1 | 70.4 |
4JTE-15 | 27.4 | 35.5 | 30.2 | 38.5 | 49.4 | 59.7 | 50.9 | 50.0 | 57.2 | 65.3 | 66.7 | 67.3 | 68.2 | 69.9 | 74.9 | 59.9 | 63.6 | 65.9 | 64.2 | 57.3 | 70.6 |
4HTE-15 | 27.8 | 35.9 | 30.6 | 38.9 | 49.8 | 60.1 | 51.3 | 50.4 | 57.6 | 65.7 | 67.1 | 67.7 | 68.6 | 70.3 | 75.3 | 60.3 | 64.0 | 66.3 | 64.6 | 57.7 | 71.0 |
4HTE-20 | 28.1 | 36.2 | 30.9 | 39.2 | 50.1 | 60.4 | 51.6 | 50.7 | 57.9 | 66.0 | 67.4 | 68.0 | 68.9 | 70.6 | 75.6 | 60.6 | 64.3 | 66.6 | 64.9 | 58.0 | 71.3 |
4GTE-20 | 28.5 | 36.6 | 31.3 | 39.6 | 50.5 | 60.8 | 52.0 | 51.1 | 58.3 | 66.4 | 67.8 | 68.4 | 69.3 | 71.0 | 76.0 | 61.0 | 64.7 | 67.0 | 65.3 | 58.4 | 71.7 |
4GTE-30 | 28.2 | 37.0 | 31.7 | 40.0 | 50.9 | 61.2 | 52.4 | 51.5 | 58.7 | 66.8 | 68.2 | 68.8 | 69.7 | 71.4 | 76.4 | 61.4 | 65.1 | 67.4 | 65.7 | 58.8 | 72.1 |
4FTE-20 | 28.1 | 44.9 | 45.5 | 53.9 | 56.9 | 55.7 | 52.4 | 55.7 | 60.6 | 72.1 | 72.1 | 68.8 | 70.1 | 70.9 | 75.0 | 65.4 | 68.5 | 66.1 | 66.3 | 59.0 | 72.7 |
4FTE-30 | 28.5 | 45.3 | 45.9 | 54.3 | 57.3 | 56.1 | 52.8 | 56.1 | 61.0 | 72.5 | 72.5 | 69.2 | 70.5 | 71.3 | 75.4 | 65.8 | 68.9 | 66.5 | 66.7 | 59.4 | 73.1 |
4DTE-25 | 29.3 | 46.1 | 46.7 | 55.1 | 58.1 | 56.9 | 53.6 | 56.9 | 61.8 | 73.3 | 73.3 | 70.0 | 71.3 | 72.1 | 76.2 | 66.6 | 69.7 | 67.3 | 67.5 | 60.2 | 73.9 |
4CTE-30 | 29.6 | 46.4 | 47.0 | 55.4 | 58.4 | 57.2 | 53.9 | 57.2 | 62.1 | 73.6 | 73.6 | 70.3 | 71.6 | 72.4 | 76.5 | 66.9 | 70.0 | 67.6 | 67.8 | 60.5 | 74.2 |
6FTE-35 | 21.1 | 43.4 | 53.7 | 66.3 | 53.7 | 55 | 59.7 | 56.7 | 59.8 | 67.5 | 75.5 | 79.5 | 72.5 | 68.6 | 72.6 | 63.6 | 65.1 | 65.1 | 62 | 62.3 | 74.9 |
6FTE-50 | 21.4 | 43.7 | 54 | 66.6 | 54 | 55.3 | 60 | 57 | 60.1 | 67.8 | 75.8 | 79.8 | 72.8 | 68.9 | 72.9 | 63.9 | 65.4 | 65.4 | 62.3 | 62.6 | 75.2 |
6DTE-40 | 21.9 | 44.2 | 54.5 | 67.1 | 54.5 | 55.8 | 60.5 | 57.5 | 60.6 | 68.3 | 76.3 | 80.3 | 73.3 | 69.4 | 73.4 | 64.4 | 65.9 | 65.9 | 62.8 | 63.1 | 75.7 |
6DTE-50 | 22.2 | 44.5 | 54.8 | 67.4 | 54.8 | 56.1 | 60.8 | 57.8 | 60.9 | 68.6 | 76.6 | 80.6 | 73.6 | 69.7 | 73.7 | 64.7 | 66.2 | 66.2 | 63.1 | 63.4 | 76.0 |
6CTE-50 | 22.7 | 45 | 55.3 | 67.9 | 55.3 | 56.6 | 61.3 | 58.3 | 61.4 | 69.1 | 77.1 | 81.1 | 74.1 | 70.2 | 74.2 | 65.2 | 66.7 | 66.7 | 63.6 | 63.9 | 76.5 |