40
FANS
Check the cleanliness of the fans when servicing the filters and the
heat recovery cell. Clean the fans as required.
You can clean the fan blades with compressed air or by brushing
them gently. Do not remove or move the fan blade balancing
weights.
WARNING
The fans are extremely sensitive to external shocks, and to
minimize risk of damage to them It is recommended that the fans
be cleaned in place, i.e. without attempting to remove them.
CLEANING THE SUPPLY AIR FAN
To lean the supply air fan, proceed as follows:
1. Disconnect the ventilation unit from the mains electricity
supply.
2. Open the Vallox ventilation unit door by turning the latch.
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. Pull out the temperature sensor (figure 1) located at the top of
the extract air duct (G). Remove the stopper screw (I) at the
bottom of the duct. The extract air duct now comes out by
turning and pushing it downwards simultaneously (figure 2).
6. Remove the temperature sensor from the resistance support
(figure 4).
MAINTENANCE INSTRUCTIONS
MAINTENANCE
