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Stand- By
(both LEDs light up)
Stand-By, Replace lime-
scale protection unit
Water removal
(POWER flashes)
Water removal, remove
limescale protection unit
No power supply or elec-
trical fault
7. Changing the limescale protection
unit
As soon as the indicator LED "IN OPERATION" goes
out, the limescale protection unit must be changed.
I.
Isolate the water pipe before and after
AQA nano and release the locking screws at
the side of the device (see Fig. 13).
II.
Remove the device cladding.
III. By opening the black drain screw at the
bottom of the transparent cylinder, you can
carry out the pressure discharge (see Fig. 14).
IV. Unscrew the transparent cylinder then
manually (see Fig. 15).
V.
Now detach the limescale protection unit (see
Fig. 16). You can, without any hesitation, put
the limescale protection unit in the domestic
waste or send it to be recycled.
VI. Open the protective covering of the new
limescale protection unit and remove it from
the packaging using the hygiene gloves
supplied (see Fig. 17).
VII. Now set the limescale protection unit on the
two titanium electrodes in such a way that the
points of the electrodes stick into the limescale
protection unit (see Fig. 18).
VIII. Now push the limescale protection unit until it
clicks over the electrodes (see Fig. 19).
IX. Now tighten the transparent cylinder again
manually.
X. Now confirm that the limescale protection unit
has been changed, by holding the "RESET"
key for around three seconds (see Fig. 20).
The green indicator light "IN OPERATION"
now lights up again.
XI. Finally check that all cable connections are
tight and fit the device cladding using
the two locking screws.
14
POWER
IN OPERATION
(())
(())
8. Inspection
To guarantee the best level of hygiene safety, effici-
ent working and long life for the device, we would
recommend you carry out a regular visual check of
the device (at least once a week) and check the
operating status (LED lights).
Professional maintenance / servicing by your ex-
pert fitter or our BWT customer service also provi-
de the highest safety levels.
9. Operator duties
Although you have purchased a durable and easy
to maintain product, every technical system requi-
res regular service to guarantee its correct opera-
tion. A precondition for the operation and any war-
ranty and guarantee claims is the compliance with
the specifications listed in these operating instruc-
tions. These specifications concern in particular:
-
normal use of AQA nano
-
the operation within the operation limits (s.
technical data)
-
correct fitting by the approved specialist
company
-
Regular tests being carried out
-
Service- and maintenance work being carried
out by your specialist fitter or the BWT custo-
mer service
Protect your rights and have all the service and
maintenance work, and the replacement of spare
and wear parts carried out solely by specialist per-
sonnel (installation company familiar with the de-
vice or BWT customer service). Make sure you use
original BWT spare and wear parts - these will gua-
rantee you reliability for many years! We would re-
commend entering into a service agreement with
your fitter or the BWT customer service.
10. Warranty
In the case of a breakdown during the warranty
period, please contact your trade partner giving
the device type (see technical data or name plate
on the device), the installation company or BWT's
customer service. The national statutory warranty
provisions shall apply as amended.
Qualified staff:
The product may only be installed, commissioned
and serviced by skilled personnel.
Only trained persons are allowed to operate and
use it.
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