22
Pipe bends with union nuts and flat packing
are supplied with equipment with heat
exchangers to enable an easy connection to
the solar heating system.
2.5.6 Fitting the extract air filter cassette
Prior to fitting the extract air filter cassette to
the ventilation equipment, undo the three self-
tapping screws in the top l.h. corner of the
side panel (Fig. 10).
Remove the separately packed extract air filter
cassette with the fixing screws supplied and
secure it on the side panel of the ventilation
equipment. Re-use the previously removed
self-tapping screws.
2.5.7 Fitting the extract and expelled air ducts
In line with DIN 24145, folded spiral pipes
NW 160 are envisaged for connection to this
device.
Insulate the extract ducts in case they are
routed through rooms which are colder than
those from which the air is extracted (e.g. from
attics, cellars, garages and false ceilings). Fit
the extract air pipe to the connector on the l.h.
side of the equipment so that neither stresses
nor torque are applied to the equipment.
Fit the expelled air pipe either to the r.h.
side or the top of the equipment so that
neither stresses nor torque are applied to
the equipment. Insulate the expelled air duct
26_04_01_0149
against condensation with a vapour-proof
layer.
The expelled air connector is located at the top
of the equipment as standard. The following
steps are necessary for conversion
– Isolate the equipment from the power
supply and open it as shown in Fig. 6.
– Remove the 4 fixing screws from the top of
the equipment and remove the equipment
lid.
– Undo the 6 fixing screws from the cover
panel on the r.h. side of the equipment.
– Rotate the side panel by approx. 10
degrees and remove the EPS profile, which
faces the front, upwards.
– Pull the second EPS profile approx. 20 mm
in the direction of the equipment front and
then remove upwards by rotating the side
Fitting the extract air filter cassette
26_04_01_0110
Fig. 10
panel by approx. 10 degrees.
– Remove the cover from the side panel.
– Remove the expelled air connectors from
the equipment lid.
– Fit the cover panel and expelled air
connector in each other’s place.
– Install EPS profiles in reverse order, so that
the airway points towards the equipment
side panel.
– Fit the equipment lid and close the
equipment again.
For anti-vibration separation and service
reasons, connect the equipment to extract and
expelled air ducts with about 1 m length of
flexible pipe each.
Also separate the flexible expelled air pipe.
The expelled air screen must not be fitted with
a fly screen for similar.
Safety instructions
If the dwelling contains combustion
equipment (tiled stoves, fire places, wall
mounted gas fired boilers etc.), ensure that
such combustion equipment is supplied with
combustion air separate from the ventilation
equipment (check with your local flue gas
inspector, as requirements vary across regions
and countries).
When operating a dryer or a cooker hood
which extracts air, ensure also, that a
sufficiently large air flow rate is supplied to
that equipment, independent of the ventilation
equipment.
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