Cleaning/maintenance
Cleaning, maintenance and repairs of the ventilation unit carried out only by qualified electricians. In accordance with DGUV regulation 3, Section 2 (3) and in compliance with the relevant standards (e.g. DIN EN 50110-1) and technical rules.
DANGER due to electric shock
Observe the safety rules of electrical engineering. Before taking off covers and before installing the electrics, shut down all supply circuits, switch off mains fuse, check that no voltage is present, secure against being accidentally switched back on and position a visible warning sign.
CAUTION Danger of burns when touching hot housing parts on ventilation units with preheating register.
Do not touch the heat register. Wait until the heat register and the housing parts have cooled off.
Cleaning and maintenance work may only be carried out by the specialist installer → Safety instructions supplement.
- Clean or service the ventilation unit at least every 2 years.
- Never operate the ventilation unit without an air filter.
- Only use original air filters.