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M
AINTENANCE
C
OMFORT
C
IRCLE
44
6.2.3 Cleaning the filter
1. Switch the unit off using the controller.
2. Remove the air inlet grille
1
.
3. Clean the filter
2
using a vacuum cleaner
3
.
4. Replace the air inlet grille.
5. Switch the unit on.
6. Reset the filter’s service life by pressing
+
and
-
simulta-
neously.
6.2.4 Removing and replacing the filter
Danger:
d
This may be carried out by qualified staff only.
1. Switch the unit off.
2. Disconnect power supply (remove plug from socket or
move main switch to Off).
3. Remove the air inlet grille.
4. Loosen screw
1
, but do not remove it from the unit.
5. Remove the locking plate
2
.
6. Take out the filter
3
.
7. Clean or renew the filter.
8. Replace the filter.
9. Re-apply the locking plate to the filter.
10. Tighten screw
1
.
11. Replace the air inlet grille.
12. Switch the power on again.
Danger:
d
For safety reasons, the unit may not be used with-
out a filter.
1
2
3
3
2
1