Table of Contents
Advertisement
● The outside air feed should be installed on
the shaded side of the building, e.g. on the
wall or under an overhang. If the outside air
is sucked in from underneath the roof tiles,
it must be ensured that there is no build-up
of condensation in the roof shell and that
no water can penetrate. Supply air can be
sucked in from underneath the roof tiles if
air can flow unhindered from below and
above in the roof area and if the building
drainage system does not vent out under
the roof tiles.
A Spacing 10 mm over the roof beam
support
B Roof insulation
C Foam seal
D The pipe for the air balancing must be
carefully insulated and equipped with a
moisture barrier
10
● The exhaust air channel is to be fed
through the roof shell such that no
condensation can build up in the roof shell.
● The exhaust air channel between the WRG
180 EC and the roof outlet should be
designed such that the build up of surface
condensation is excluded.
● An insulated roof outlet must be used for
ventilation purposes.
● The highest permitted resistance in the
channel system at maximum ventilation
power is 150 Pa. Increased resistance in
the channel system reduces the maximum
ventilation power.
● The position of the exhaust air opening and
the position of the building drainage system
vent should be chosen in such a way to
avoid cross-contamination through odours.
● Select the position for the supply air valve
so that contamination and draughts are
avoided.
Sufficient overflow openings must be
installed, shutter gap 2 cm.
Advertisement
Table of Contents
