7
Duct connection
At all duct connections, a yellow sticker is affixed
indicating which ventilation ducts are to be connected to
the various connectors.
Supply air is connected
Duct system from unit to supply air in living room.
Exhaust air is connected
Duct system from damp rooms to the unit.
Outdoor air is connected
Duct system from outdoor air hood/outdoor air grille from
outside or from earth exchanger to unit.
Extract is connected
Duct system from unit to exhaust hood/exhaust grille to
the open air.
To start the duct installation, it is recommended using 4 x
Ø160 mm connectors with double sealing lips.
Condensate drain
The ventilation unit produces up to 6 litres of condensate
per day. It is therefore important that the condensate drain
is executed correctly and that the drain pipe slopes slightly
towards the sewer connection.
An ordinary Ø32 mm water trap can be connected directly
to the ventilation unit.
From the water trap and drain pipe, there must be a slope
of 1% towards the sewer connection.
If the unit is installed in a cold attic, the condensate drain
must be insulated to prevent the condensate from freezing
in the pipe. However, it is recommended that the water trap
should be installed in a heated area below to ensure that
the water in it does not freeze.
If installation problems make it impossible to protect the
condensate drain against frost by means of insulation, it is
necessary to install a thermostatically controlled heating
coil around the drain.
During operation, a negative pressure arises in the
unit, making it necessary to install a water trap with
a water column of at least 50 mm
