Initial Operation; Selection Of Power Rating (Only Cex / Cex-U / Cfx / Cfx-U); Reinstallation (Only Cex / Cex-U / Cfx / Cfx-U); Shower Application - clage CFX-U Gebrauchs- Und Montageanleitung

6. Initial operation

Before making the electrical connec tion, fill the mains and the appliance
with water by carefully opening and closing the hot water tap in order to vent
completely.
To ensure a maximum flow, remove any existing aerator from the faucet.
Flush the warm and cold water pipes each at least for one minute.
After every draining (e.g. after work on the plumbing sys tem or following
repairs to the appli ance), the heater must be re-vented in this way before
starting it up again.
If the water heater cannot be put into operation, the temperature cut-out or
the pressure cut-out may have tripped during transport. If necessary, reset
the cut-out (fig. F1).

Selection of power rating (only CEX / CEX-U / CFX / CFX-U)

Only by authorised specialist, other wise lapse of guarantee!
Upon first connection of the appliance to the supply voltage, select the
maximum power rating. Only after having set the power rating, the heater
provides its standard ope ration mode.
The maximum allowable power rating at installation site de pends on the local
situation. It is impe rative to observe all data shown in the table "Technical
specifications", in particular the required cable size and fuse protection for
the electrical connec tion. Moreover, the electrical installation must comply
with the statutory regulations of the respective country and those of the local
elec tricity supply company (Germany: DIN VDE 0100).
CEX / CEX-U / CEX7 / CEX7-U
1. Switch on the power supply to the appliance. The digital display on the
appliance must light up.
CEX / CEX-U only
a. When switching on the supply voltage for the first time, the value
"11" flashes in the display. If not, please carefully read the note
"Reinstallation".
b. Select the maximum allowable power rating depending on the local
situation via the up and down
c. Press key to confirm the setting. The appliance starts operating.
d. Mark the set power rating on the rating plate.
2. Open the hot water tap. Check the function of the appliance.
3. After having set the maximum allowable power rating, the heating ele-
ment will be activated after approx. 10 – 30 seconds of water flow.
4. Explain the user how the instantaneous water heater works and hand over
the operating instructions.
5. Fill in the guarantee registration card and send it to the after-sales service
or use the online registration.
CFX / CFX-U
1. Switch on the power supply to the appliance
2. After inserting the batteries into the radio remote control (fig. B1), the
language selection appears. Select your preferred operating language and
confirm with "OK".
3. A maximum of ten Bluetooth devices found are then scanned and listed
(fig. F3). The scan can be repeated by selecting
4. Select your instantaneous water heater and confirm with "OK". The PIN
entry appears (fig. F4).
keys: 11 or 13 kW.
.
5. Enter the last 4 digits of the serial number and confirm with "OK". The
serial number can be found on the type plate of the instantaneous water
heater and in the warranty booklet.
6. The remote control is now connected to the instantaneous water heater
and starts data synchronisation. This may take a few seconds. The remote
control then switches to the selection of power rating.
7. Select the maximum allowable power rating depending on the local situa-
tion via the middle two sensor keys: 11 or 13 kW.
8. Confirm the setting with "OK". The remote control changes to the set-
point display and the unit starts operating.
9. Mark the set power rating on the rating plate.
10. Open the hot water tap. Check the function of the appliance.
11. After having set the maximum allowable power rating, the heating ele-
ment will be activated after approx. 10 – 30 seconds of water flow.
12. Explain the user how the instantaneous water heater works and hand over
the operating instructions.
13. Fill in the guarantee registration card and send it to the after-sales service
or use the online registration.

Reinstallation (only CEX / CEX-U / CFX / CFX-U)

In case the appliance will be commis sioned again under different installation
conditions than during its initial ope ration, it may be necessary to adapt the
maximum power rating. A temporary short-circuit of the two pins, e.g. with a
screwdriver acc. to EN 60900 (see fig. F2), will reset all heater para meters to
works setting and lock the heating.
Value "11" flashes in the display until the maximum power rating has been
selected. This condition will maintain when activating and deactivating the
supply voltage. With the CFX, the remote control must be registered again.
See step 2-6 of the power switching procedure.

Shower application

The water heater's temperature must be limited to 55 °C, if it is connected to
a shower.
CEX / CEX-U / CEX7 / CEX7-U
The service menu parameter "Temperature Limit" ("tL") must be set to a
value less or equal 55 °C, in consultation with the customer and the lock level
must be activated.
CFX / CFX-U
The temperature limit in the settings menu must be set to a maximum of
55 °C during commissioning after consultation with the customer and the
blocking level must be activated.
When the device is operated with preheated water, it must be ensured that
this temperature is limited to 55 °C as well.
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CLAGE
EN