CSV. series

Sound power levels (one-third octave bands) and sound pressure levels

The measurements were taken with the refrigerant R134a at different speeds.
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

For many CS. and CSV. compressors, sound insulation hoods are available. Mounting instructions are compiled in the Technical Information SW-179.

CSV.2

Sound power and sound pressure levels for screw compressors of series CSV.2
to: evaporation temperature, tc: condensing temperature
rpm: rotations per minute





Compressor




to/tc in °C





rpm

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

CSVH24-125

+3/+25.5

1280

12.2

19.7

16.9

14.5

15.8

19.8

24.1

26.5

28.1

45.0

48.4

56.9

69.1

64.9

67.2

68.9

60.5

58.3

53.4

51.5

49.7

50.7

44.7

59.0

68.2

46.1

43.9

67.4

+3.5/+34

2560

17.3

16.7

14.6

21.3

21.9

29.4

32.3

26.4

32.3

47.2

53.3

53.0

68.8

61.3

67.5

71.4

73.8

79.5

78.8

66.1

61.2

61.1

56.4

61.7

71.9

57.4

52.3

75.8

+3.5/+41

3840

18.0

7.0

17.0

22.6

26.1

22.5

27.6

40.2

35.5

44.0

56.6

66.9

61.0

66.7

81.2

75.9

85.7

77.7

78.3

80.0

72.0

69.1

63.3

63.6

71.1

57.6

52.8

81.1

+2.5/+50

5120

30.9

27.5

41.2

43.4

48.1

51.2

51.2

50.7

51.2

55.3

59.3

61.4

79.9

71.2

74.6

93.0

89.2

81.3

84.9

82.3

80.8

76.1

69.1

67.2

65.6

57.0

51.0

87.7

CSVH25-160

+3/+25.5

1600

27.8

32.9

32.7

32.5

34.3

39.2

41.2

42.7

42.0

54.0

55.7

59.1

64.2

69.0

67.0

67.9

64.5

62.0

54.9

53.2

49.2

51.3

48.1

58.8

67.8

46.9

43.8

67.5

+3.5/+34

3200

29.4

31.3

34.6

46.5

41.5

43.0

46.0

43.1

47.7

51.8

60.1

58.3

63.0

62.9

74.5

72.2

77.6

77.6

77.7

72.0

67.2

62.5

58.4

62.3

72.2

57.7

52.9

76.3

+3.5/+41

4800

31.6

27.0

34.7

39.2

42.2

41.5

44.2

52.2

49.2

54.2

60.3

64.5

62.2

74.6

75.8

81.1

86.1

77.5

79.1

82.0

75.0

73.2

65.5

64.6

70.8

57.8

53.6

81.9

+2.5/+50

6400

31.1

34.4

42.6

36.9

37.3

56.2

52.1

50.5

55.3

57.4

66.2

66.5

77.2

76.6

82.9

89.7

85.6

89.8

87.2

89.0

85.5

79.8

74.1

70.6

66.5

61.1

53.7

88.4

CSVH26-200

+3/+25.5

2000

47.4

49.5

52.5

54.9

57.4

63.4

62.6

62.9

59.3

65.3

64.9

61.8

58.1

74.1

66.8

66.6

69.6

66.6

56.7

55.3

48.6

52.0

52.3

58.6

67.4

47.9

43.7

70.6

+3.5/+34

4000

44.6

49.5

59.6

77.9

66.1

60.1

63.2

63.9

66.9

57.5

68.5

65.0

55.7

64.8

83.3

73.1

82.4

75.3

76.3

79.4

74.7

64.2

60.9

63.0

72.6

58.1

53.7

80.6

+3.5/+41

6000

48.5

52.0

56.8

60.0

62.3

65.3

65.0

67.3

66.4

67.0

65.0

61.4

59.1

84.5

69.0

72.8

86.5

75.0

80.1

79.5

78.8

78.4

68.3

65.8

70.5

58.1

54.5

82.7

+2.5/+50

8000

51.3

54.5

57.9

60.6

64.1

66.5

67.5

68.4

68.2

69.7

76.5

69.2

67.0

78.0

93.0

82.7

83.0

90.2

82.5

92.1

88.4

81.1

77.7

71.2

66.7

63.2

54.0

90.0

CSV.3

Sound power and sound pressure levels for screw compressors of series CSV.3
to: evaporation temperature, tc: condensing temperature
rpm: rotations per minute





Compressor




to/tc in °C





rpm

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

CSVH37-240

+3/+25.5

1328

29.6

27.0

32.1

32.3

36.5

36.3

49.2

41.6

36.5

51.3

56.8

58.1

62.5

63.4

72.1

77.4

73.5

70.3

70.1

65.5

66.3

69.6

63.5

65.0

73.5

63.6

60.0

74.2

+3.5/+34

2655

30.2

35.8

42.8

46.8

45.1

46.0

48.1

48.7

43.3

69.9

69.2

71.2

71.5

73.6

79.7

81.0

84.4

75.8

76.8

72.0

78.3

73.4

72.2

68.1

76.9

69.2

60.5

80.9

+3.5/+41

3982

35.2

29.9

29.8

42.7

60.7

56.2

54.6

52.2

49.2

52.0

63.1

78.0

73.9

70.5

89.1

81.0

91.8

85.8

82.6

80.7

84.7

83.0

78.8

70.2

75.4

67.3

62.6

86.6

+2.5/+50

5310

33.3

34.6

32.6

45.6

59.1

65.0

73.6

59.4

47.9

58.0

68.7

71.6

82.9

82.3

72.5

90.5

90.2

87.6

80.2

78.6

80.8

85.2

85.7

73.6

71.7

69.1

60.2

88.2

CSVH38-290

+3/+25.5

1600

9.4

15.4

21.5

25.7

31.0

26.4

41.8

67.3

58.4

47.6

56.5

56.9

73.0

67.8

74.4

77.6

73.5

72.9

71.3

67.6

61.4

66.9

58.7

61.2

71.3

58.5

56.5

75.0

+3.5/+34

3200

9.0

15.3

35.9

41.8

37.8

29.2

35.2

50.0

45.7

54.8

62.8

61.0

65.8

82.6

74.9

82.8

80.7

77.6

72.4

76.6

73.0

74.8

67.0

66.2

74.4

66.6

64.0

81.1

+3.5/+41

4800

12.9

23.8

20.3

40.4

46.9

49.8

43.2

50.4

47.4

58.8

59.5

69.3

86.9

71.0

72.3

89.8

79.1

86.3

79.3

82.2

80.2

82.3

78.0

72.2

73.6

68.3

65.9

86.8

+2.5/+50

6400

26.2

32.9

32.4

35.5

43.9

46.8

57.0

51.3

50.6

67.8

61.3

70.8

76.5

92.0

83.5

83.8

90.3

83.0

88.9

89.8

86.1

85.6

81.9

78.1

74.4

71.5

66.9

89.9