User manual
FLEXI 50
8
5.2
Air damper operating principle
The indoor unit
of
the
venti
l
ators
has
a sw
i
ve
l
damper.
The
vertical pos
i
tion of the
handle
corresponds
to
the pos
iti
on OPEN,
the
horizontal
one
-
to the
pos
ition
on C
L
OSED
.
The indoor unit
of the vent
il
ators
i
s equ
i
pped
w
ith
an automatic air
damper.
I
t opens at
the
beginning of
the
venti
l
ator's operation and
l
ets
the
air
f1ow
freely through
the vent
il
ator. Afte
r
swi
t
ching off the venti
l
ator,
the damper closes
automat
i
cal
l
y.
The
ai
r
damper
opening and
closing
process can
take up to five-
minute
s.
Caution! If the power supply is cut off during operation of the ventilator, after five minutes, the damper can be
manually moved to the CLOSED position using the handle to prevent drafts.
Later
on,
w
hen the
venti
l
ato
r i
s turned on,
the damper
w
ill
a
ut
omat
i
ca
lly
y open.
Automatic open
in
g/ clos
in
g of t
h
e damper
i
s
not
prov
i
ded in
the
indoor unit of
the
ventilators.
The d
a
mper in
th
ese models
can on
l
y be
a
djusted manually using the handle regardless
of
the
venti
l
ator operat
in
g mode.
Caution! Air damper opening or closing does not turn the ventilator on or off!
Th
e
figure
be
l
ow shows
the closed
and open pos
i
t
i
ons of the
damper
and
the handle.
