Operation with RLS 1 WR

The ventilation levels can be set manually with the RLS 1 WR single control unit. LEDs indicate the selected ventilation level, a pending filter change or faults.

In ventilation level II (nominal ventilation), the ventilation unit switches to the Auto sensor operating mode (setting can be changed by the installer). The automatic system ensures hygienically perfect ventilation based on the determined humidity values (combi sensor) and/or air quality values (optional CO2/VOC sensor).

Ventilation levels I-III: Shift up with the ▼ button, shift down with the ▲ button.

Ventilation level I	Ventilation for humidity protection (building preservation). LED I flashes. Interval ventilation 13 minutes on – 17 minutes off – 13 minutes on.
Ventilation level I	Reduced ventilation. LED I on. Continuous operation.
Ventilation level II	Nominal ventilation. LED II on. Continuous operation. Ventilation unit in Auto sensor operating mode.
Ventilation level III	Intermittent ventilation. LED III flashes. Intensive ventilation with timer. Once a timer interval has elapsed, the ventilation unit switches back to nominal ventilation
Ventilation level III	Intensive ventilation. LED III on. Continuous operation.
Filter change indicator	LED II flashes.
Fault indicator	All 3 LEDs flash: The fault elimination must be acknowledged manually. RLS 1 WR: Press both arrow keys at the same time for 3 seconds. RLS T2 WS: Acknowledge fault clearance on the display.