Changing G4 and F7 air filters (unit filters)

Change the unit filters when the filter change indicator is on.

A pending filter change is displayed on a main control unit (if the status display is switched on under basic settings). On the RLS 1 WR control unit, the LED of ventilation level II flashes regularly at longer intervals.

Recommendation: Change the air filters together.

  1. Switch off ventilation unit, disconnect at all poles from the power supply, secure against being accidentally switched back on and position a visible warning sign.
  2. Loosen the two quick-release locks and remove the front cover.
  1. Pull the air filter out of the ventilation unit.
  2. Carefully slide the new air filter into the filter shaft. Do not press in the air filter (cellulose). Only press in at reinforced corners. Air direction arrow facing down.
  3. Attach front cover and secure with both quick-release clips. Ensure that it is properly fastened.
  4. Reset filter change interval. To do this, click on the message on screen and confirm the filter change with changed. Also confirm a premature filter change with "changed". For Solo single control unit (= system only with a single RLS 1 WR): Press the two arrow keys together for 2 seconds. The 3 LEDs flash briefly. If resetting prematurely, press the keys at the same time for 10 seconds.
  5. Dispose of the air filter according to local regulations.