PPB 30 O
The PPB 30 O unit is the ideal choice for an exhaust air room (bathroom, WC, kitchen), where the room is aerated and ventilated at the same time.
In heat recovery mode, the two internal fans switch from exhaust air to supply air mode or vice versa every 60 seconds. The supply air is heated by the ceramic heat exchanger using the recovered heat and thermal energy is extracted from the exhaust air.
In cross-ventilation mode (without heat recovery), the ventilation units work permanently in one direction in supply air or exhaust air mode.
If just one PPB 30 O unit is connected to the RLS 45 O control, pure exhaust air mode (press Ventilation level button for > 2 sec.) is possible. In this case, the pressure must be compensated via outside air openings (ALDs).
Both fans then switch to exhaust air (no heat recovery).
If a humidity, CO2 or air quality sensor (VOC) is connected to a room air control, demand-driven automatic operation with sensor control can be manually activated. Depending on the sensor values measured (H, CO2, VOC), the volumetric flow of all units is gradually adjusted. The set operating mode is retained.