Technical data
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V
Precision Air Conditioning
Precision Air Conditioning
76
Technical Manual : 6258867 F 07/2012
Sound Data - Condensers C 11 - 50
METHOD OF SOUND MEASUREMENT
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.
Measurement of Sound
Data
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.
Horizontal Vertical
SOUND DATA
Standard Condenser Fan - Horizontal
Frequency (Hz) dB
Sound
Measurement
Overall
dB(A)
63
125
250
500
1000
2000
4000
8000
Power 67
56
58
63
64
63
61
55
47
C11HI-H
Pressure @ 10m 39
28
30
35
36
35
33
27
19
Power 70
59
61
66
67
66
64
58
50
C15HI-H
Pressure @ 10m 42
31
33
38
39
38
36
30
22
Power 79
78
87
76
73
74
70
62
55
C20HI-H
Pressure @ 10m 51
50
59
48
45
46
42
34
27
Power 79
78
87
76
73
74
70
62
55
C25HI-H
Pressure @ 10m 51
50
59
48
45
46
42
34
27
Power 79
78
87
76
73
74
70
62
55
C35HI-H
Pressure @ 10m 51
50
59
48
45
46
42
34
27
Power 82
81
90
79
76
77
73
65
61
C45HI-H
Pressure @ 10m 54
53
62
51
48
49
45
37
33
Power 81
84
89
77
77
76
73
66
65
CS50HI-H
Pressure @ 10m 53
56
61
49
49
48
45
38
37
Standard Condenser Fan - Vertical
Frequency (Hz) dB
Sound
Measurement
Overall
dB(A)
63
125
250
500
1000
2000
4000
8000
Power 68
53
61
63
64
64
62
56
48
C11HI-V
Pressure @ 10m 40
25
33
35
36
36
34
28
20
Power 71
56
64
66
67
67
65
59
51
C15HI-V
Pressure @ 10m 43
28
36
38
39
39
37
31
23
Power 80
75
92
76
73
75
71
63
56
C20HI-V
Pressure @ 10m 52
47
64
48
45
47
43
35
28
Power 80
75
92
76
73
75
71
63
56
C25HI-V
Pressure @ 10m 52
47
64
48
45
47
43
35
28
Power 80
75
92
76
73
75
71
63
56
C35HI-V
Pressure @ 10m 52
47
64
48
45
47
43
35
28
Power 83
78
95
79
76
78
74
66
62
C45HI-V
Pressure @ 10m 55
50
67
51
48
50
46
38
34
Power 83
81
93
77
77
78
74
68
67
CS50HI-V
Pressure @ 10m 55
53
65
49
49
50
46
40
39
1 Figures quoted using standard condenser fan(s) running at full speed under normal operating conditions.
OUTDOOR UNIT