17
EN
CLAGE
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:
1. De-energize the instantaneous water heater (e.g. via deactivating the fuses) and prevent
inadvertent reactivation of them.
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 “0“ fig. G1).
4. Unscrew the screw plug (b) from the cold water connection piece and take out the strainer
(c) (fig. G2).
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 (position “1“). Check all
connections for leaks.
8. Vent the appliance by carefully opening and closing the affiliated warm water tap valve sev-
eral 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).
7. Initial operation
Locking function
The operating mode of the appliance can be restricted.
Activation of the locking function
1. Select required parameters via the setting menu (see online user manual chapter “Settings”,
subpoints “Temperature limit” and / or “Load shedding”).
2. Disconnect the appliance from the power supply (e.g. by switching off the fuses).
3. Take the jumper off the power electronics and change to position “
1” (see figure F4).
4. Put the appliance into operation again.
Deactivation of the locking function
1. Disconnect the appliance from the power supply (e.g. by switching off the fuses).
2. Take the jumper off the power electronics and change to position “
O” (see figure F4).
3. Put the appliance into operation again.
8. Maintenance work
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 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 sev-
eral 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
(fig. G3).
