Maintenance Work; Cleaning And Replacing The Filter Strainer; Cleaning And Replacing The Filter Strainer If Direct Connected - clage DEX Next S Gebrauchs- Und Montageanleitung

9. Maintenance work

(a)
(b) (c)
Strainer
Maintenance work must only be conducted by an authorised professional.
closed

Cleaning and replacing the filter strainer

The cold water connection of this instantaneous water heater is equipped with an inte-
grated shut-off valve and a strainer. Soiling of the strainer may reduce the warm water
output. Clean or replace the strainer as follows:
1. De-energize the instantaneous water heater (e.g. via deactivating the fuses) and
prevent inadvertent reactivation of them.
open
2. To open the appliance, take off the small face plate, loose the screw behind this
cover and detach the hood.
3. Close the shut-off valve (a) in the cold water connection piece (position "closed").
4. Unscrew the screw plug (b) from the cold water connection piece and take out the
strainer (c).
Note: Residual water can leak
5. The strainer can now be cleaned or re placed.
6. After fitting of the clean strainer tighten the screw plug.
7. Slowly reopen the shut-off valve in the cold water connection piece (posi-
tion "open"). Check all connections for leaks.
8. Vent the appliance by carefully opening and closing the affiliated warm water tap
valve several times until air no longer emerges from the pipe.
9. Fit the hood of the appliance. Then switch on the power again (e.g. via activating
the fuses).

Cleaning and replacing the filter strainer if direct connected

The cold water connection of this instantaneous water heater is equipped with a
strainer. Soiling of the strainer may reduce the warm water output. Clean or replace
the strainer as follows:
1. De-energize the instantaneous water heater (e.g. via deactivating the fuses) and
prevent inadvertent reactivation of them.
2. Close the shut-off valve in the mains water supply of the instantaneous water
heater.
3. To open the appliance, take off the small face plate, loose the screw behind this
cover and detach the hood.
4. Unscrew mains water inlet from connection piece and take out the strainer.
Note: Residual water can leak
5. The strainer can now be cleaned or replaced.
6. After refitting the clean strainer reconnect the mains water inlet to the connection
piece.
7. Slowly reopen the shut-off valve in the mains water supply. Check all connections
for leaks.
8. Vent the appliance by carefully opening and closing the affiliated warm water tap
valve several times until air no longer emerges from the pipe.
9. Fit the hood of the appliance. Then switch on the power again (e.g. via activating
the fuses).
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