Cus 15 - 60, Condensing units, Noise data – Airedale Condensing Units (CU) 3kW - 80kW User Manual
Page 9
Condensing Units
CUS 15 - 60
Chillers & Condensing Units
Technical Manual : v1.2.0 07_2014
9
Noise Data
Sound
Frequency (Hz)
Measurement
dBa
63
125
250
500
1000
2000
4000
8000
Power
dB
84
88
80
81
81
81
74
66
57
CUS 15D
Pressure
@ 1m
76
80
72
73
73
73
66
58
49
Pressure
@ 10m
56
60
52
53
53
53
46
38
29
Power
dB
85
88
80
82
82
82
75
68
59
CUS 20D
Pressure
@ 1m
77
80
72
74
74
74
67
60
51
Pressure
@ 10m
57
60
52
54
54
54
47
40
31
Power
dB
86
88
81
83
83
82
78
72
64
CUS 25/30D
Pressure
@ 1m
78
80
73
75
75
74
70
64
56
Pressure
@ 10m
58
60
53
55
55
54
50
44
36
Power
dB
101
95
93
89
89
95
95
93
91
CUS 40D
Pressure
@ 1m
93
87
85
81
81
87
87
85
83
Pressure
@ 10m
73
67
65
61
61
67
67
65
63
Power
dB
103
97
95
92
92
98
98
95
90
CUS 50D
Pressure
@ 1m
95
89
87
84
84
90
90
87
82
Pressure
@ 10m
75
69
67
64
64
70
70
67
62
Power
dB
105
98
95
92
94
99
100
97
90
CUS 60D
Pressure
@ 1m
97
90
87
84
86
91
92
89
82
Pressure
@ 10m
77
70
67
64
66
71
72
69
62
Notes:
1
Sound Power Reference Power = 10-12 Watts.
2
Sound Pressure Reference Pressure = 2 x 10-5 N/m2.
3
dBA is the overall noise level, measured on the A scale.
4
Sound Pressure data is only valid in free field conditions, where a reflective base, such as a roof is found.