Meanwhile, I have given the device back. The reason: the icing was not to get in touch. The seal is apparently not matched to frame and door. Within a short time ice formed between the seal and frame (s. Photo). Too bad, otherwise he was fine. But a nice shape and interior design are not enough, I want him already sealed, and - this was not a Monday device. The seal was replaced with an expert assured me: this can not work. Well then ... There was also a device replacement. Egebnis: everything as usual.