Question about Furber Nuvola

I tested the air conditioner for a day and returned it because the cooling capacity was not high enough.
I got the 12,000 BTU model from Electrolux instead, which cools noticeably more and consistently and is interestingly also quieter, which does not correspond to the DB specifications in the product description.
For the caravan, the Furber Nuvola is probably perfect, but about as loud as a hairdryer on medium, so think carefully beforehand about how the neighbours will react to it.
But now to the first question: water has collected in both units. I'm no expert, but I assume that both units should be emptied regularly.
To the second question: I had run the cooling and dehumidification modes alternately and therefore cannot say whether so much water also collects exclusively in the cooling mode. However, dehumidifying helps enormously in humid heat.

Hi, you only need to drain the units when you turn the ac off. The enclosed hose could be used when draining the units. The water is pumped during operation from the inside to the outside. The water in the ouside unit gets evaporated via the fan. I’m using it in a good insulated floor and can keep the temperature constant for a full floor.