ES compressors
Sound power levels (one-third octave band) and sound pressure levels
The measurements were taken with the refrigerant R134a (except ESH743Y: refrigerant R407C) at an operating frequency of 50 Hz and with a suction gas temperature of 20°C.
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
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| Sound power level in dB(A) at different frequencies (one-third octave band) | Sound pressure level in dB(A) | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
25 Hz | 31.5 Hz | 40 Hz | 50 Hz | 63 Hz | 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 | 8000 Hz | 10000 Hz | |||
ESH725 | +5/+50 | 17.4 | 15.8 | 14.8 | 29.2 | 17.6 | 17.8 | 27.7 | 28.5 | 23.8 | 32.2 | 35.5 | 43.3 | 44.9 | 54.3 | 59.0 | 62.2 | 65.0 | 59.7 | 61.1 | 59.2 | 60.1 | 60.3 | 57.9 | 50.1 | 49.0 | 46.5 | 41.1 | 62.8 |
-10/+45 | 14.7 | 13.9 | 20.4 | 32.3 | 11.2 | 19.0 | 24.1 | 18.9 | 30.6 | 33.1 | 34.9 | 44.8 | 45.6 | 53.2 | 62.1 | 61.6 | 66.5 | 64.9 | 63.3 | 62.9 | 65.0 | 62.8 | 59.2 | 57.3 | 54.5 | 49.3 | 43.9 | 65.4 | |
ESH730 | +5/+50 | 15.9 | 18.2 | 18.5 | 29.5 | 5.7 | 19.6 | 27.2 | 25.4 | 25.1 | 25.5 | 33.7 | 42.1 | 45.1 | 51.8 | 58.7 | 61.8 | 63.8 | 61.1 | 61.9 | 61.8 | 63.2 | 61.1 | 58.0 | 52.6 | 51.8 | 46.9 | 40.4 | 63.3 |
-10/+45 | 18.7 | 17.5 | 16.9 | 39.6 | 25.2 | 24.2 | 43.8 | 35.3 | 50.2 | 38.2 | 29.7 | 43.6 | 49.5 | 51.4 | 63.0 | 62.1 | 65.8 | 64.2 | 65.1 | 63.4 | 65.1 | 64.6 | 59.9 | 57.3 | 56.6 | 50.8 | 44.8 | 65.8 | |
ESH736 | +5/+50 | 12.1 | 17.2 | 15.1 | 30.2 | 6.2 | 16.4 | 28.2 | 23.5 | 22.6 | 32.9 | 33.7 | 40.0 | 45.0 | 50.6 | 58.0 | 61.4 | 62.8 | 60.0 | 60.5 | 61.2 | 64.7 | 60.3 | 58.8 | 50.5 | 49.0 | 42.6 | 39.5 | 63.0 |
-10/+45 | 13.7 | 14.0 | 10.5 | 22.9 | 17.6 | 20.9 | 15.8 | 25.9 | 34.2 | 35.1 | 31.0 | 43.1 | 41.1 | 52.4 | 62.5 | 61.8 | 65.0 | 64.1 | 63.3 | 63.1 | 65.3 | 62.3 | 60.2 | 58.9 | 55.2 | 48.0 | 42.7 | 65.2 | |
ESH743 | +5/+50 | 23.7 | 21.6 | 17.0 | 39.8 | 27.5 | 24.8 | 38.2 | 32.0 | 42.2 | 47.6 | 43.7 | 53.5 | 57.4 | 66.5 | 65.5 | 63.1 | 63.1 | 60.5 | 61.8 | 67.2 | 61.8 | 60.8 | 59.8 | 59.4 | 54.9 | 47.6 | 41.7 | 66.1 |
-10/+45 | 25.9 | 27.5 | 23.5 | 34.6 | 22.3 | 19.1 | 38.5 | 31.3 | 35.6 | 49.5 | 38.3 | 48.3 | 55.1 | 64.2 | 65.1 | 62.0 | 64.9 | 60.4 | 66.1 | 68.4 | 66.3 | 63.8 | 62.0 | 60.3 | 56.5 | 51.3 | 44.4 | 67.2 | |