Henry Dr. Saage

Review of Zehnder GmbH

Zehnder Q350 ventilation system.

Zehnder Q350 ventilation system.

The ventilation system works properly. Unfortunately, all rooms can only be controlled together. Dry air in winter without enthalpy filter. It is better with an enthalpy filter, but then not a 100% separation of supply and exhaust air.
Why only two stars? The operating instructions are incorrect, diagrams are insufficiently labeled. The menu navigation is incorrectly translated. The promised remedy is a long time coming. It is a shame that one does not see in the management that an instruction manual belongs to the product. If you are misled by errors there, it is difficult to control the system with such a complex product.

With reasonable instructions 4 stars.

Yours sincerely, Dr.-Ing. H. Saage