VarioSelectCDE 18-27 TECHNOTHERM
14
1.
De-energize the instantaneous water heater (e.g. via deactivating the fuses) and
prevent inadvertent reactivation of them.
2.
To open the hood, 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).
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
(position “open“).
8.
Vent the unit 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 unit. Then switch on the voltage again (e.g. via activating the
fuses).
9. Maintenance work
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 repla-
ce 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 hood, 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.
5. The strainer can now be cleaned or replaced.
6. After refitting the clean strainer reconnect the mains water inlet to the con-nec-
tion piece.
7. Slowly reopen the shut-off valve in the mains water supply.
8.
Vent the unit 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 unit. Then switch on the voltage again (e.g. via activating the
fuses).
Maintenance work must only be conducted by an authorised professional.Cleaning
and replacing the filter strainer. The cold water connection of this instantaneous
water heater is equipped with an integrated shut-off valve and a strainer. Soiling of
the strainer may reduce the warm water output. Clean or replace the strainer as
follows:
