Filter changes, unit cleaning

Risk of injury when working at heights due to falling slide-in module (3.6 kg).

Sometimes the slide-in module is hard to pull out of the wall sleeve/slide into the wall sleeve. Use appropriate, certified climbing aids (ladders). Stability should be ensured, if necessary have the ladders steadied by a 2nd person. Ensure that you are standing securely and cannot lose your balance and that there is no one under the unit. When installing and removing the slide-in module, support it from below with a hand.