29
Grommet
Fixing the mounting panel
Mounting panel
Fix ILTO to the mounting panel
from inside through the back
wall.
Fixing must remain flexible.
Hole
16
Fixing scre
ws to studs
on the wall
Do not fix ventilation
pipes so that their weight
leans on ILTO.
NOTE! Mount the fastening bolts before
screwing the panel on the wall.
550
460
Instructions for Installation
1. Mount ILTO on the wall so that it rests on the mounting panel. Screw the mounting
panel on the wall. Lift ILTO on top of the panel edge and fix it with two rubber
fasteners through the service door to the mounting panel.
In wall and ceiling mounting the unit should be mounted as close to a wall as
possible. It is recommended to seal the space between the unit and the wall in
order to prevent sound coming through the back wall of the unit from entering the
room.
2. Condensation water goes through a fairly rigid hose or pipe, with a thickness of
at least 12 mm, to a floor drain, to a water trap near the sink or similar. The
condensation hose of ILTO must not be connected directly to the drain. A water
trap, made by looping a hose delivered with the unit, is mounted in vertical position
and filled with water.
If there is no water in the water trap, the flowing of air in the condensation
pipe may generate a disturbing sound.
If the water trap is made from the mounting pipe, its backwater height must be at
least 100 mm. At the bottom of ILTO 400 there is a condensation water outlet, to
which the hose is connected.
The water hose must not have another water trap or horizontal draught.
3. Mount the air ductwork in the attic or in the interior space (a counter ceiling).
In a cold space the ductwork is heat-insulated with for instance 10-cm rock wool.
In a warm space the outdoor air duct and the exhaust air duct going out must also
be damp-proofed (for instance by placing a plastic film on top of the insulating
layer). Outdoor air is supplied to the unit either from below the eaves or from the
wall. Exhaust air is led outside through ILTO roof penetration, ensuring a small
pressure loss. Remove a mosquito net, which easily gets clogged, from the outdoor
air louvre. The weight of the air ductwork must not burden ILTO. Supports have to
be made in such a way that the weight of the ductwork leans on other structures.
Transmission of sound from the ducts to structures must also be prevented (a
woollen strip between the roof truss and pipe as well as between the pipe and
handle). It is recommended to use ILTO grommets in duct penetrations when piercing
the vapour barrier.
ENGLISH
