Is an air conditioner necessary in a south-facing location?

But then he must get a 4MXM80N because a 4MXM68N wouldn't manage it. Even the 80N is already reaching its limits there. Besides, for 52m² I would rather lean towards the 6kW version. In the tables, you can see what net cooling capacity you get with different combinations (I just picked a few). However, if you want to adhere to the 100W/m² cooling capacity, you can see where the journey is heading.

Or maybe just have the 5MXM90N offered. It's only a few hundred euros difference compared to the 4MXM80N, but it looks a bit better in terms of cooling capacity.

So the outdoor unit is the 4MXM80N, I can tell that by the specified weight. Because the outdoor unit is listed at 67kg, the 68N only has 63kg according to technical data.

Thank you anyway for the additional hints, I rely on him having calculated everything correctly. As I said, the professional impression is very good! Price-wise, he is only slightly above what you find online for the indoor units, only for the outdoor unit does the surcharge seem higher. BUT that is okay, the overall package is, I think, consistent.

But I will discuss your hints with him again, THANK YOU!

So I contacted him again and he confirmed once more that the devices are dimensioned according to the cooling capacity calculation! Since I have no reason to doubt his professional competence, it will fit and the execution is scheduled for 07/13 or, with luck, the week before (he estimates a duration of 3 days).

Also a huge advantage compared to other providers who were only able to schedule appointments starting in July.

Well then, enjoy the last warm days in the house,
They will be the last ones

I certainly hope so!
A Remko offer just came in; it is initially €1000 "cheaper," but:

- Refrigerant line calculated very tightly (11m less, which already makes a difference at €35)
- Labor hours also significantly lower
- No WLAN/App connection for the devices (which I don’t find totally unreasonable)

So all in all, the Remko offer actually seems worse to me, because the labor hours and lines are, of course, billed according to actual effort/consumption.