Noise in the outdoor area with controlled residential ventilation - noise regulation regarding time?

  • Erstellt am 2016-09-15 14:54:03

Illo77

2016-09-15 14:54:03
  • #1

    [*]Hello everyone,
    is there actually a regulation about the times when a controlled residential ventilation system is allowed to run and when not, or on which levels it is allowed to run?
    We currently have quite a bit of stress with one of our neighbors who totally loses it as soon as the system runs on level 3 or level 4. According to the manufacturer, level 1 is only to be used during absence (e.g. vacation), levels 2-3 are normal operation (we normally only use level 2), level 4 is for things like visits, drying laundry, cooking, showering, bathing, etc.
    In summer, we run the system in the late afternoon or early evening (depending) on level 3 to ventilate the relatively cooler outside air from the east side (where the intake is located) into the rooms on the upper floor (children’s rooms) because otherwise it is boiling hot there and the kids are in bed early, which means the windows can’t be opened (on the one hand because of the risk that the child might climb out the window but also because it would simply be too bright in the room, not to mention the evening sun shining on the laminate floor, heating it up and the floor then giving off heat back into the room overnight). This regularly leads to angry remarks from the neighbor. I work in a facility for people with disabilities and, for example, my neighbor has already asked me whether I work there or am being cared for and said my poor child can’t choose their parents, etc.
    Anyway, the installer of the whole system has already been on site and said everything was okay (it really could have been that something was wrong with the system).
    Now the question is, which nobody has been able to answer me so far: Is there generally a regulation specifically for such systems (similar to operating a lawn mower etc. until 8 p.m.) stating that certain values must not be exceeded at certain times, or does only the general noise protection ordinance or whatever it is called apply? Maybe someone knows more about this, I only know someone who works at the environmental agency who says it is generally a growing issue (also in relation to air heat pumps).
    The house was built in 2013, the system is a Vallox 090sc, the device is located in the attic on the inside of the east gable wall, the air intake and outlet are accordingly on the outside of the gable wall with a combined air hood (a wide slot for one and a large opening downwards for the other, I don’t know which is intake and which is outlet).
    And yes, I know it’s not air conditioning, but the benefit in summer is clearly the cooler outside air and level 3 is still “normal” operation according to the manufacturer, we have only used level 4 when we had visitors in winter, but I don’t know how big the difference between 3 and 4 is.

    Oh yes, the location is Schleswig-Holstein.

    Kind regards
 

AOLNCM

2016-09-15 21:12:18
  • #2
The system is designed for continuous operation. As long as the silencers and sections with rubber inserts are installed, there is initially nothing to criticize. What is regulated, however, is the noise level. How many dB are allowed during nighttime rest max., no idea, you have to google that yourself.

What you can also do, if stage two is quiet enough and stage three is somewhat too loud. Normally, the volume flows of the respective stages can be adjusted by a professional. Possibly reduce stage three in ten cubic meter steps until both parties are satisfied?
 

Bieber0815

2016-09-15 21:21:07
  • #3

No, but permissible sound levels are regulated. What counts is not the sound level at your exhaust opening, but the sound level at your neighbor’s. Details can be fairly easily found online if you replace controlled residential ventilation system with air-to-water heat pump. The principle is the same.

(If you had bought a motorcycle, but you wanted the controlled residential ventilation system, your own fault :P *SCNR*).
 

Bauexperte

2016-09-15 22:48:17
  • #4
Unfortunately, you don't want it any other way .... I have now - felt like - deleted your fantasy job countless times, letting you be prompted by the software to enter your real profession. Do you actually think I am bored? Enter your profession correctly or play somewhere else! Greetings from the Rhineland
 

Musketier

2016-09-15 22:54:27
  • #5
Somehow that seemed familiar to me

It probably would have been easier if back then you had not only posted but also answered the questions.
 

MayrCh

2016-09-16 12:53:43
  • #6
Due to a lack of regulations, such systems are often subject to the TA Lärm, although the TA Lärm in question does not pertain to system and industrial noise. As already correctly stated, the TA Lärm is based on guideline values that must not be exceeded in total at the affected neighbor. Therefore, it is not primarily important how loud the system is at the source, but how much total noise (i.e., including all other possibly existing controlled residential ventilation/air-to-water heat pump systems) reaches the neighbor. For general residential areas, these guideline values are 55 dB(A) during the day (06:00–22:00) and 40 dB(A) at night (22:00–06:00). Within these time periods, there are especially protected quiet times (20:00–22:00 as well as 05:00–06:00). In case of complaints from neighbors, the responsible approval/emission control authority—provided it operates professionally—will insist that the impact at the neighbor from the considered single system lies at least 3, preferably 6 dB(A) below these guideline values. Only in this way can an exceedance of the guideline values be excluded according to the TA Lärm, taking into account all other relevant system and industrial noise sources. Depending on the specific local conditions, installation situation, etc., the operation of a controlled residential ventilation system can already lead to a utilization of the reduced guideline values especially during the night period, particularly when the frequently occurring tonal components are considered.
 

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