Wolf CWL-2 Ventilation System - Request for a second opinion

Evening,

a quick task for those interested. I have had a Wolf "CWL-2-225 4/0 L" (according to the nameplate) installed.



The documentation shows the following:



Am I making a mistake or should I quickly inform the general contractor? ;)

Oh man… Nothing surprises me anymore on construction sites. A few weeks ago, the two distribution boxes of the Kontrollierte-Wohnraumlüftung were installed on my basement ceiling. Afterwards, unfortunately, the window wouldn't open anymore because the boxes are quite large. They wanted to remove the basement window and reinstall it one centimeter lower, but what do I see today? A window sill was installed ‍♂️ So it first has to be removed again in order to be able to take out the window. In the meantime, I don’t immediately react to such things anymore but wait until the next interim invoice arrives, withhold double the value, and suddenly things start moving. The advantage is that the money earns interest longer in the savings account and you only have to write one long email instead of 5 short ones.

I think exchanging the device should be the least of the problems (although I waited exactly 1 year for my system). A bigger problem is probably that there is not enough distance between the exhaust air and the outside air. :rolleyes:

Something like this is installed on the outside. Seen it many times and it has been working for two acquaintances for years.

The general contractor has confirmed the "problem" and will solve it. When I asked if it will now be a R device: No

So, then I am curious. I have no desire for a pipe-tinkering-disaster....