22
Air cooled chillers
LX
PROPELLER
F
ANS
A I R C O N D I T I O N I N G - R E F R I G E R A T I O N - A I R H A N D L I N G - H E A T E X C H A N G E -
N
N
A
A
0
0
4
4
.
.
5
5
3
3
1
1
B
B
S
OUND
LEVELS
XTRA LOW NOISE version
Specific mounting for low speed fans (715 rpm) + compressors sound insulation
Acoustic pressure levels ref 2 x 10
-5
Pa ± 3 dB (Lp)
LX - LXH
LXC
SOUND
PRESSURE
LEVEL
SPECTRUM (dB)
T
otal pressure
level dB(A)
63 Hz
125 Hz
250 Hz
500 Hz
1000 Hz
2000 Hz
4000 Hz
1200Z
1200Z HPS
51
52
46
54
47
40
32
53
1500Z
1500Z HPS
56
53
49
55
50
44
34
55
1850Z
1850Z HPS
56
53
49
55
50
44
34
55
2150Z
2150Z HPS
60
56
49
56
50
44
34
55
2500Z
2500Z HPS
60
56
49
57
51
44
34
56
2800Z
2800Z HPS
63
59
50
59
52
46
36
58
3050Z HPS
61
57
51
57
52
46
36
57
3400Z HPS
62
58
52
58
53
47
37
58
3750Z HPS
62
58
52
58
53
47
37
58
LX - LXH
LXC
SOUND
PRESSURE
LEVEL
SPECTRUM (dB)
Total pressure
level dB(A)
63 Hz
125 Hz
250 Hz
500 Hz
1000 Hz
2000 Hz
4000 Hz
1200Z
1200Z HPS
83
84
78
86
79
72
64
85
1500Z
1500Z HPS
88
85
81
87
82
76
66
87
1850Z
1850Z HPS
88
85
81
87
82
76
66
87
2150Z
2150Z HPS
93
89
82
89
83
77
67
88
2500Z
2500Z HPS
93
89
82
90
84
77
67
89
2800Z
2800Z HPS
96
92
83
92
85
79
69
91
3050Z HPS
94
90
84
90
85
79
69
90
3400Z HPS
95
91
85
91
86
80
70
91
3750Z HPS
95
91
85
91
86
80
70
91
Acoustic power levels ref 10
-12
W ± 3 dB (Lw)
Acoustic pressure levels are calculated following ISO 3744 regulation Lp = Lw - 10 log S,
in free field and at 10 meters
from the unit.
We remind that the acoustic pressure level is given as an indication and that only the sound power level is
comparable and certified.
