Meaning of the LEDs on PP 45 RC/PPB 30 RC

LED

Meaning

Orange

LED flashes x times when the heat recovery operating mode is selected (x = selected ventilation level). When demand-driven operation is selected, the LED lights up for 5 seconds.

Blue

LED flashes x times when the cross-ventilation mode is selected (x = selected ventilation level). When demand-driven operation is selected, the LED lights up for 5 seconds. In exhaust air mode (PPB 30 RC), the LED lights up 2x for 2 seconds.

Red

Filter change display and fault indicator light.