Controlled residential ventilation and still open windows at night

  • Erstellt am 2016-08-30 14:23:28

WildThing

2016-08-30 23:45:16
  • #1
What and where would this "Konstantvolumenstromregelung" be?
 

Sebastian79

2016-08-31 05:47:46
  • #2
Sits normally in the device, but there is also one per outlet.

Just google the term, it is well explained by bosy.

Ensures that the volume flow remains constant - no matter what you change (turning the valve up, window open). This eliminates the elaborate calibration...
 

Bieber0815

2016-08-31 07:20:01
  • #3
Constant volume flow control according to Aldes (there is a PDF on aldes.de, bosy cites Aldes as a source in his paragraph). Installed components that use a membrane to keep the volume flow constant within a relatively wide differential pressure range. After reading this, I still see no reason not to open a window.

Mechanically guided volume flow regulators are probably rare in private residential construction, right? But even there ...
 

Sebastian79

2016-08-31 07:27:19
  • #4
Well, you just have to read a bit more. These are all devices that can basically be retrofitted - so it doesn't matter or (exaggeratedly said) it counts on the lifetime of the additional devices because they regulate.

But there are controlled residential ventilation systems that can regulate the volume flow via the speed of the fan motors - and then you have a constant up and down of the speed. An open window (of course) disrupts the volume flow....
 

Kaspatoo

2016-08-31 10:11:55
  • #5
Hi,

I expressed myself poorly.
I mean, if I want to be able to open windows (at night, in the bedroom, every night on warm days, maybe only an hour before going to bed on cold days) and that together with a controlled residential ventilation system wouldn't make sense / would be totally stupid, then for me the consequence would be that a controlled residential ventilation system doesn't make sense for me.

However, the house is still well insulated. Ergo, I have to fix this by manual ventilation. But I assume that I won't manage to do this regularly three times a day.
My counter-question was aimed at this case, how I prevent mold when manually ventilating.

The only things that come to mind here are decentralized ventilation and something like window rebate ventilation.
And then there are the counterarguments again that all the insulation wouldn't make sense.
A bleak dilemma for fans of cool fresh air while sleeping (cool feels fresher = better body sensation).

But you yourselves say you sometimes also open the window.

What I haven't quite understood yet:

- There are systems that can dynamically regulate their speed
-> Is that true, or do they simply apply y watts to the fan and if it has a harder or easier time, it just spins faster or slower?
- Conversely, that means there are also ones without this feature
-> Can there also be problems with those when frequently opening windows?
- Now you brought up the constant speed controller, which according to the above-mentioned definition sounds complex with a membrane etc.
-> But if I have a device without dynamic control, isn't that the same as the constant speed controller?
-> Why then the elaborate technology with membrane etc. if you can simply choose not to include dynamic control

In other words, if I were to choose a system, what should I pay attention to?
 

Sebastian79

2016-08-31 10:17:21
  • #6
You should first read texts completely, then all questions become unnecessary...

Forget membranes etc. - the devices with constant volume flow do this internally through speed detection and who knows what else. That is also advertised...

Without this technology, you have - as I already wrote - no problems, because the ventilation is dumb and simply blows continuously.
 

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