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DV50 DV80
(Integral CO
Sensor)
2
REMOVING AND CLEANING THE
EXTRACT AIR FAN
This section describes how to remove the extract air fan
of the right handed unit. The steps are mirrored for the left
handed unit.
To remove and clean the extract air fan:
1.
Disconnect the ventilation unit from the mains
electricity supply.
2.
Turn the latch to open the door of the ventilation unit.
3.
Lift the door off.
4.
Remove the extract air filter (C), the cell top bracket (E)
and the heat recovery cell (D), as described in sections
"Filters" and "Heat recovery cell".
5.
Remove the fan bed mounting screw (see removing the
supply air fan, Figure 1).
6.
Remove the connector package from the wall.
7.
Separate the connectors from each other.
8.
Tilt the fan to the left and turn 90°.
9.
Tilt the fan forward to pull it out of the unit.
10. The fan has now been removed for cleaning.
11. To reassemble the ventilation unit, follow the above
steps in reverse order.
12. Close the door and plug the unit back into the mains.
13. The fan has now been checked and cleaned.
CONDENSING WATER
In the heating season, the extract air humidity condenses
to water. In new buildings, condensation runoff can form
rapidly. Condensed water must be able to freely leave the
unit.
At some time before the heating season begins (e.g. during
autumn maintenance), check that the condensing water
outlet (L) in the bottom pool is not clogged. To check this,
pour some water into the pool. Clean as required.
The unit is delivered with two condensing water outlets: one
that has an air lock (see the Figure) and a more compact
outlet that has not. When the outlet with no air lock is used,
an air lock must be installed somewhere else between
the extraction pipes (the parts needed are included in
the accessory bag). The air lock ensures the removal of
condensing water and muffles any noise.
MAINTENANCE INSTRUCTIONS
Install the fan beds in a reverse
order.
Water must be kept out of the
electrical system at all times.
40
NOTE
WARNING
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