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31 Sound level
Noise levels must be taken into consideration when siting the system.
In accordance with TA-Lärm [or local regulations], the following emission limits must be observed:
Area
Spa complexes, hospitals and care homes, where indicated as such by means of
signs on the premises or road.
Emission location surrounded exclusively by residential buildings
(purely residential areas)
Emission location surrounded primarily by residential buildings
(generally residential areas)
Emission location neither primarily surrounded by commercial facilities nor by
residential buildings (core areas, mixed areas)
Emission location surrounded primarily by commercial facilities (commercial areas)
Emission location surrounded exclusively by commercial facilities and perhaps the
occasional residential building for the owners and managers of the facilities and for
supervisors and on-call staff (industrial areas)
Measuring location outside but close to the residence concerned (0.5 m in front of the open window that is most affected)
31.1 The following must be observed when installing the system
Avoid siting the heat pump directly outside or below windows of noise-sensitive rooms, e.g. bedrooms.
Installation in recesses or between 2 walls is not recommended, as this will increase the noise level due to sound
reflection.
The sound power level of heat pumps is calculated in accordance with EN 12102. It enables comparisons to be
made independently of surroundings, direction and distance.
31.2 Sound reflection (directivity Q)
With the number of adjacent vertical surfaces (for example walls), the sound pressure level increases exponentially
to the free positioning (Q = directivity).
Q = 2: Freestanding outdoor heat pump installation
88
Sound level
Noise emission limits
[dB(A)]
Day
Night
06:00 - 22:00
22:00 - 06:00
45
35
50
35
55
40
60
45
65
50
70
70
3064298_201805
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