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MAINTENANCE
Fans
Check the cleanliness of the fans when servicing the filters
and the heat recovery cell. Clean the fans as required.
Fans can be removed from the unit for cleaning. The fan
blades can be cleaned with compressed air or by brushing
them gently. Do not remove or move the fan blade
balancing weights.
Removing the supply air fan, right-handed model
(The steps are mirrored for the left-handed unit)
The unit with the heat recovery cell and the filters removed
1. Remove the mounting screw of
the fan bed.
1. Remove the mounting
screw of the fan bed.
2. Remove the connector
package from the wall.
3. Separate the connectors
from each other.
2. Pull the bypass duct/
filter stand package
out of the unit and
turn to the right.
3. Disconnect the cable
of the bypass damper
motor.
4. Tilt the supply air fan to the right
and push the connectors out of
the way.
5,. Turn the fan 90° and
tilt it forward to pull it
out of the unit.
2
1
3
2
1
3
4
4
5
5
4.. Tilt the fan to the
left and turn 90°.
5. Tilt the fan
forward to pull it
out of the unit.
Install the fan beds in a reverse order.
Removing the supply and extract air
fan
Before the supply and extract air fans are removed,
the filters and the heat recovery cell of the unit must
be removed as described above. Fan beds and the
bypass duct must be removed and reinstalled carefully
in accordance with the below instructions to prevent
damage. The small size of the unit restricts the space
available for servicing.
Removing the extract air fan, right-handed model
(The steps are mirrored for the left-handed unit)
