37
3.4 System overview
Item
Designation
Function
1
Internal cover
Cover for the air filter
and the electronics
1.1
Bolt
Internal cover fixing
1.2
Threaded
insert
Internal cover fixing
2
Wall sleeve
Consisting of
3 connectable ring
segments
3
External cover
Stainless steel cover
for external wall
3.1
Bolt
External cover fixing
4
Supply air fan
Conveys fresh air
into the living area
4.1
Fly screen
Protection from
insects
4.2
Outside air
shutter
Opens or closes the
supply air channel.
Fitted with foam
rubber for noise-
reduction.
5
Exhaust fan
Conveys the used air
to the outside
5.1
Fly screen
Protection from
insects
5.2
Exhaust air
shutter
Opens or closes the
exhaust air channel.
Fitted with foam
rubber for noise-
reduction.
6
Plate heat
exchanger
The heat transfer
between the exhaust
air and outside air
flows happens in the
heat exchanger.
7
Condensation
connection
Condensation drain,
Special accessory
with extension sleeve
8
Housing
Fan housing con-
sisting of 2 housing
shells
Item
Designation
Function
9
Drip tray
Leads the conden-
sation from the
external wall to the
outside
10
Electronics,
electrical
connection
Control circuit board
with RJ12 connection
socket for room air
control or network
and terminal block for
the power connection
11
Supply air
air filter, filter
class G4
Filters coarse dirt out
of the outside air
11.1
Optional
pollen filter,
filter class F7
Filters the smallest
dirt out of the outside
air, e.g. pollen
12
Exhaust air
air filter, filter
class G4
Filters coarse dirt out
of the exhaust air
13
13.1
Room air
control
RLS 5 UP
RLS 5 AP
no picture
4 ventilation levels,
switchable manually
or through a weekly
program. With supply
air or exhaust air
operation.
With filter change
display, operating
status, operating
hours counter and
fault display.
H versions with
additional humidity
control.
14
14.1
Room air
control
RLS 4-1 UP
RLS 4-1 AP
no picture
4 ventilation
supply air or exhaust
air ope Off.
With filter change and
fault display.
GB
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