6
Fit the clamped-ventilator insert in the wall
cut-out:
•
Insert the ventilator unit in the wall cut-out
(correct flap valve position and seating if ap-
propriate! See the bottom diagram)
Insertion in through-the-wall housings
3/LS, 3/LB, 3/LS 2, 3/LB 2:
•
Push the ventilator unit in the through-the-
wall housing while pressing the mains cable
back in the duct
4a
Mains Connection:
Fasten the power supply terminal to the mains
cable as shown in the appropriate wiring dia-
gram (see “Wiring diagrams”).
Caution
! The mains cable must be dead!
2
Top view of power
supply terminal
L2
L1
L
N
F+
F-
Plug the power supply terminal on and
latch on behind the notched hook
3
Lock the power supply
terminal in behind the
notched hook
4b
Correct the flap valve position and seating
(important for ceiling installation)
•
In the installed condition, the flap valve in the
exhaust nozzle must close because of its
own weight. The flap valve can be drawn out
from the inside for corrections.
Right
Wrong
Flap valve
‘‘DOWN‘‘
inscription
Correction
Break off the
guide stems
Mains cable
Installation
housing
Stick seal to exhaust
opening (see dia-
gram 1 )!
Push the ex-
haust nozzle on
to the stop
Duct