36
and fill it with water. Attach the hose to the water drainage connector
(3/8” external thread) on the bottom of the unit. The hose must have
no other water trap or horizontal draught. The height of backwater
for the water trap should be at least 10 cm.
3. The air ducts are installed in the attic or in the ceiling (behind
ceiling panels). In unheated spaces, use 10 cm of mineral wool, for
example, to insulate the ducts. In heated spaces, also use a vapour
barrier for the outside air vent and exhaust air vent leading outside
(e.g., plastic sheeting on top of the insulation). The outside air
intake should be located under the eaves or on the wall. Use ILTO
roof flashing in installation of the exhaust air vent, to minimise
pressure loss. Remove the insect screen from the louvres because it
easily becomes clogged. The weight of the air ducts must not rest
on the unit. Install supports so that the weight of the ducts rests on
other structures. Also prevent sound transmission between ducts
and structures with a strip of mineral wool between the rafters and
the ducts and between the ducts and the mounting noose. Securely
soundproof the upper portion of the unit, down to the dampers, with
mineral wool (the duct is a sound source).
4. The use of a filler plate to ensure proper insulation of the vapour
barrier is recommended. A filler plate prevents moisture from reach-
ing the ceiling insulation and the attic air from entering the living
quarters. Cut an opening of approximately 10 mm in the collar of
the filler plate for the connections. Screw the plate to the ceiling via
the holes along the sides. Ensure that the plate is positioned cor-
rectly (the front and back are longer than the sides). Either fasten
the vapour barrier between the filler plate and the structure or tape
it securely to the filler plate.
5. The unit’s main switch is an independent on/off switch or, if the
unit is controlled from the cooker hood, the fuse.
6. The current through the step-down transformer can be used to
control the rotation speed of the intake fan in relation to the outlet fan.
ILTO W80 raised on the
lower hooks.
Fix the ILTO W80 in
place by tightening the
screws in front.
Open the screws
in front by approx.
2 cm.
NOTE: Electrical connections must be installed by a certi-
fied electrician. The current phase for the unit must be at
least 100 V.
Detach by pulling the plug of the reheater thermostat from the
electrical box. Open the three screws in the front panel of the box
and remove the cover plate. Open the four screws in the bottom of
the box and remove the bottom plate. To change the control voltage
of the supply air fan, move the phase-regulating connection to the
outlet of your choice (90 %, 80 %, 70 %, or 60 %). Assemble the
electrical box by reattaching first the bottom plate and then the front
cover plate. Finish by reinserting the plug of the reheater thermostat.
Duct insulation
Ducts in an unheated space:
Insulation of mineral wool,
thickness 100 mm or similar.
Outside duct and exhaust air duct in a heated
space.
Insulation: mineral wool, thickness 50 mm.
Covered with plastic that is taped airtight as a
vapour barrier.
Indoor warm intake and outlet ducts
do not have to be insulated.
Loose mineral wool
Do not install the horizontal portion of the outside air duct in the roof insulation, in
order to avoid condensation on the cold duct in the event of a leak in the vapour
barrier opening.
Insulate the outside air duct with at least 100 mm of mineral wool,
so
that any excessive heat in the attic in the summer does not heat the outside air led
to the unit.
Содержание ILTO W80
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