10
Subject to change without notice | 83051400cUK – Translation into English of the original German operating manual | ait-deutschland GmbH
SOUND
The noise emission from the heat pumps must be taken
into account in the respective installation plans for air /
water heat pumps. The respective regional regulations
must be complied with.
NOTE.
The following sound pressure levels are calcu-
lated values. Other constellations, adjoining
other buildings or even reflecting surfaces may
lead to a level increase. An exact specification
of each sound pressure level is possible only
through a measurement spot when the heat
pump is already installed.
The following sound pressure levels result, depending on the distance and installation variant with directivity factor Q
(see sketches page 11):
LW
90 A/RX
Distance from the heat pump in m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Directivity
factor
Sound pressure level at max. heating output in dB(A)
Q
2
58
52
48,5 46
44
42,4 41,1
39,9
38,9 38
37,2
36,4 35,7 35,1 34,5 33,9 33,4 32,9 32,4 32
4
61
55
51,5
49
47
45,4 44,1 42,9 41,9
41
40,2 39,4
38,7 38,1 37,5
36,9 36,4 35,9 35,4 35
8
64
58
54,5 52
50
48,4 47,1
45,9 44,9 44
43,2 42,4 41,7
41,1
40,5 39,9
39,4
38,9 38,4 38
LW
140 A/RX
Distance from the heat pump in m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Directivity
factor
Sound pressure level at max. heating output in dB(A)
Q
2
59
53
49,5 47
45
43,4 42,1 40,9 39,9
39
38,2 37,4
36,7 36,1 35,5 34,9 34,4 33,9 33,4 33
4
62
56
52,5 50
48
46,4 45,1 43,9 42,9 42
41,2 40,4 39,7 39,1
38,5 37,9
37,4
36,9 36,4 36
8
65
59
55,5 53
51
49,4
48,1 46,9 45,9 45
44,2 43,4 42,7 42,1 41,5 40,9 40,4 39,9
39,4
39
