36
UK | 3 Intended use
2.4 Setting ventilation level
The ventilation level is set using one of the
,
or
keys. Ventilation level 0
only if the Off function is actively switched.
Venti-
lation
level
LEDs
RLS 45 O
RLS 45 K
LEDs on the
ventilation unit
PP 45 RC
PPB 30 RC
0
LED [17] = Off
1
LED
[17] flashes
once
orange:
HR-ventilation
blue:
Cross-ventilation
2
LED
[17] flashes
twice
orange:
HR-ventilation
blue:
Cross-ventilation
3
LED
[17] flashes
three times
orange:
HR-ventilation
blue:
Cross-ventilation
4
LED
[17] flashes
four times
orange:
HR-ventilation
blue:
Cross-ventilation
5
LED
[17] flashes
five times
orange:
HR-ventilation
blue:
Cross-ventilation
i
Filter change display:
The LED of the
current ventilation level flashes contin
-
ually. With PP 45 RC units, the current
operating mode LED on the underside
of the RC unit flashes
continually (blue
or orange).
3 Intended use
PP 45-/PPB 30
ventilation units with heat
recovery are used for air extraction / ventila-
tion of apartments, offices and similar rooms.
They are suitable for new builds and reno-
vation work. The units are designed for 24h
operation. The residential unit’s ventilation
system should be configured in accordance
with DIN 1946-6.
PP 45
are ventilation units, which are gener-
ally only suited to use in
supply air rooms
.
To achieve efficient ventilation of PP 45 units,
we would recommend operating the
PP 45
in pairs
with alternating ventilation and air
extraction.
PPB 30
are balanced ventilation units, which
are the ideal choice for use in
exhaust air
rooms
(bathroom, WC or kitchen
with win-
dows
) and aerate and ventilate the rooms at
the same time. Exhaust air mode is started
automatically depending on the setting or can
be started manually at the touch of a button.
PPB 30 are stand-alone units or can be used
in groups with other PPB 30/PP 45 units. PPB
30 can also be used in damp rooms, protec-
tive zone 1.
PP 45
are fitted in external walls (wall thick
-
ness 265-790 mm),
PPB 30
in external walls
(wall thickness 320-790 mm). The electrical
connection is made to a permanent electrical
installation.
The ventilation units are operated using a
room air control suited to the unit type:
●
RLS 45 O or RLS 45 K control
for PP 45 O/K and PPB 30 O/K.
●
Radio switch
DS 45 RC
for PP 45 RC/
PPB 30 RC. Alternatively with RLS 45 K +
PP 45 EO radio extension module.
PP 45-/PPB 30
ventilation units are only in-
tended for domestic use and similar purposes.
No other or additional use is intended.