Sound data, Method of sound measurement, Condensers – Airedale Air Cooled Condensers R407C User Manual
Page 12: Measurement of sound data, Semi hemispherical, Standard condenser fan – horizontal, Standard condenser fan – vertical

C11-45 / CS50 - 105
CONDENSERS
12
Condensers
Installation and Maintenance Manual: 6259642 V1.2.0 02/2013
Sound Data
METHOD OF SOUND MEASUREMENT
Measurement of Sound
Data
All sound data quoted has been measured in the third-octave band limited values, using
a Real Time Analyser calibrated sound intensity meter in accordance with
BS EN ISO9614 Part 1 : 1995.
All Sound Power Levels quoted are calculated from measured sound intensity according
BS EN ISO9614 Part 1 : 1995.
Semi Hemispherical
Sound Pressure Levels are calculated from sound power using the semi-hemispherical
method where the noise source is in junction with 2 boundaries i.e. the floor and 1 wall.
SOUND DATA
Standard Condenser Fan
– Horizontal
Sound
Measurement
Overall
dB(A)
Frequency (Hz) dB
63
125
250
500
1000
2000
4000
8000
C11HI-H
Power
dB(A)
67
56
58
63
64
63
61
55
47
Pressure
@ 10m
39
28
30
35
36
35
33
27
19
C15HI-H
Power
dB(A)
70
59
61
66
67
66
64
58
50
Pressure
@ 10m
42
31
33
38
39
38
36
30
22
C20HI-H
Power
dB(A)
79
78
87
76
73
74
70
62
55
Pressure
@ 10m
51
50
59
48
45
46
42
34
27
C25HI-H
Power
dB(A)
79
78
87
76
73
74
70
62
55
Pressure
@ 10m
51
50
59
48
45
46
42
34
27
C35HI-H
Power
dB(A)
79
78
87
76
73
74
70
62
55
Pressure
@ 10m
51
50
59
48
45
46
42
34
27
C45HI-H
Power
dB(A)
82
81
90
79
76
77
73
65
61
Pressure
@ 10m
54
53
62
51
48
49
45
37
33
CS50H
Power
dB(A)
81
84
89
77
77
76
73
66
65
Pressure
@ 10m
53
56
61
49
49
48
45
38
37
CS65H
Power
dB(A)
81
84
89
77
77
76
73
66
65
Pressure
@ 10m
53
56
61
49
49
48
45
38
37
CS80H
Power
dB(A)
83
80
89
80
77
79
75
68
67
Pressure
@ 10m
55
52
61
52
49
51
47
40
39
CS105H
Power
dB(A)
83
80
89
80
77
79
75
68
67
Pressure
@ 10m
55
52
61
52
49
51
47
40
39
Standard Condenser Fan
– Vertical
Sound
Measurement
Overall
dB(A)
Frequency (Hz) dB
63
125
250
500
1000
2000
4000
8000
C11HI-V
Power
dB(A)
68
53
61
63
64
64
62
56
48
Pressure
@ 10m
40
25
33
35
36
36
34
28
20
C15HI-V
Power
dB(A)
71
56
64
66
67
67
65
59
51
Pressure
@ 10m
43
28
36
38
39
39
37
31
23
C20HI-V
Power
dB(A)
80
75
92
76
73
75
71
63
56
Pressure
@ 10m
52
47
64
48
45
47
43
35
28
C25HI-V
Power
dB(A)
80
75
92
76
73
75
71
63
56
Pressure
@ 10m
52
47
64
48
45
47
43
35
28
C35HI-V
Power
dB(A)
80
75
92
76
73
75
71
63
56
Pressure
@ 10m
52
47
64
48
45
47
43
35
28
C45HI-V
Power
dB(A)
83
78
95
79
76
78
74
66
62
Pressure
@ 10m
55
50
67
51
48
50
46
38
34
CS50V
Power
dB(A)
83
81
93
77
77
78
74
68
67
Pressure
@ 10m
55
53
65
49
49
50
46
40
39
CS65V
Power
dB(A)
83
81
93
77
77
78
74
68
67
Pressure
@ 10m
55
53
65
49
49
50
46
40
39
CS80V
Power
dB(A)
84
76
93
80
78
81
76
70
69
Pressure
@ 10m
56
48
65
52
50
53
48
42
41
CS105V
Power
dB(A)
84
76
93
80
78
81
76
70
69
Pressure
@ 10m
56
48
65
52
50
53
48
42
41
1
Figures quoted using standard condenser fan(s) running at full speed under normal operating conditions.