4 Operating keys, displays, LEDs
47
4.2 Changing operating mode
Press key.
The operating mode LED
lights up.
Press or
key.
The operating mode LED
lights up.
Press or
key.
The operating mode LED on
the ventilation unit lights up.
Heat recovery mode: orange
LED flashes x times depend-
ing on ventilation level:
Level1 = 1 time... Level5 = 5
times
Cross-ventilation mode:
blue LED flashes x times, de-
pending on ventilation level:
Level1 = 1 time... Level5 = 5
times
4.3 Switching demand-driven mode
on/off
Automatic function differs depending on control
and ventilation unit. Automatic symbol only on
RLS 45 K
Function of demand-driven mode: Continu-
ously variable control of ventilation levels de-
pending on sensor measurements. Is used to
dehumidify the air or improve the room air
quality.
RLS 45 O, RLS 45 K and PP 45 RC units: This
function is only available with a connected and/or
installed/taught-in sensor. The function can be ac-
tivated in HR or cross-ventilation mode.
PPB 30 K units on RLS 45 K / PPB 30 RC: In de-
mand-driven mode, the ventilation level is always
regulated using the measurements from the hu-
midity sensor inside the unit.
Switching on: Select ventilation
level 3.
Switching off: Select another vent-
ilation level.
Display: Level 3 lights up.
To switch on or off, press
or button for
2seconds. When function is
switched on, the LED lights up
continuously.
To switch on or off, press
or button for
2seconds.
LED lights up for 5 seconds when
switching on:
orange with heat recovery ventila-
tion
blue with cross-ventilation
4.4 Setting ventilation level
The ventilation level is set using one of the
, or buttons. Ventilation
level 0 only if the Off function is actively switched.
Ventilation
level
LEDs
RLS 45 O /
RLS 45 K
LEDs on the vent-
ilation unit
PP 45 RC /
PPB 30 RC
0
LED = off
1
LED flashes 1 time
orange: heat recov-