Foggy windows despite ventilation system

  • Erstellt am 2019-01-21 16:02:37

ares83

2019-01-22 10:38:10
  • #1
The function apparently shuts down the system or reduces the output when it is too cold: According to the manual: Frost Disbalance - display of the current status of the airflow disbalance caused by the frost protection function. The percentage of supply air reduction is displayed
 

baschdieh

2019-01-22 10:39:56
  • #2


Directly on the display, only this message appears - I just checked under "Status" - there you can see that it is set to 5% - but that cannot be the actual problem either.
 

ares83

2019-01-22 10:46:05
  • #3
With this, you are still running the system at a higher throughput than we are, so that really shouldn't be the reason.
 

Lumpi_LE

2019-01-22 11:33:13
  • #4
Regardless of how well or poorly the ventilation system works, the windows must not fog up like that. The windows are soaking wet, with an average of 30% humidity and 18-19°C.. absolutely not acceptable.
 

Mottenhausen

2019-01-22 11:39:28
  • #5
Don't make a science out of it: you are additionally moistening the air:



But you expect the controlled residential ventilation to quickly ventilate out this additional humidification before it condenses on surfaces with dew point undershoot? A local electronic room humidifier regulates very ... digitally, if it measures too low, it briefly increases to 60%+ in the immediate vicinity and expects that it will then mix to 40% throughout the entire room. In practice, that doesn't work: the rain cloud from the humidifier drifts along the natural circulation toward the ceiling and falls back down along the windows, where it can nicely condense.

How warm is it at night in the rooms with condensation? If you absolutely want to maintain 40% humidity, then you also have to ensure that the necessary room temperature is maintained, so around the clock at least 22°+
 

baschdieh

2019-01-22 11:48:33
  • #6


The Venta only runs in the open living area – here we have a temperature of 22°C. In the bedroom, where we have the problem with condensation, nothing runs.
 

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