How To Use; Temperature Setting; Programme Buttons; Temperature Limitation - clage CEX 9-U Gebrauchs- Und Montageanleitung

CEX 9-U / CEX 9

2. How to use

As soon as you open the hot water tap, the instantaneous water heater
switches on auto matically. When the tap is closed, the appliance automati-
cally switches off.
EN

Temperature setting

You can set the required temperature gradually to a lower or higher value with
the keys and (fig. A1).
The temperature changes by 1 °C, in the convenience zone between 35 °C
and 42 °C by 0.5 °C, if key is pressed shortly one time. Pressing a key for a
longer time changes the temperature continuously.
Note: If temperature is set below 20 °C with key
and the appliance switches off the heating function.
Note: If the water heater supplies a shower, the maximum temperature was
reduced during initial operation. This limitation cannot be exceeded.

Programme buttons

The two programme buttons allow to quickly select the preset temperature.
When pressing a programme key, the preset temperature is selected and dis-
played (fig. A2). The factory setting for programme
gramme it is 48 °C. You can assign your own settings for the programme
keys:
• Prolonged pressing of the programme key stores the previously selected
temperature. The display changes from "P1" or "P2" to the newly stored
temperature value. This newly set temperature is now available to you
each time you press the corresponding program key (fig. A3).

Temperature limitation

This instantaneous water heater is equipped with an optional temperature
limiting function. This scalding protection is deactivated in the factory set-
ting.
• Switch on: Select the limit tempe ra ture, then press
taneously for at least 3 sec. The dis play briefly confirms the activation by
"HI" (fig. A4).
• Switch off: press program key
The display briefly confirms the deactivation by "--" (fig. A5).
Note: By activation of the temperature limit also the programme keys are
affected. Therefore, the fixed values of the programme keys must be checked
after changing the temperature limitation.

Reset to factory setting

All factory settings can be recalled:
• Press and simultaneously. The display now counts backwards from
"10" to "00" in second intervals. The appliance is reset at value "00" -
if you stop pressing the keys earlier, you will cancel the process (fig A6).
the display shows "--"
is 35 °C and for pro-
and simul-
and simultaneously for at least 3 sec.

Top-up heating

When operating with preheated water (e.g. with solar systems), ensure that
the maximum inlet temperature is not exceed.
If the inlet temperature exceeds the preselected setpoint during operation
with preheated water, no power is delivered and the decimal point of the
display flashes.

ECO mode

The symbol shows that the appliance works in an energy saving mode i.e.
the momentary energy consumption is subject to the selected temperature
and to the flow rate in the energy saving mode.

Power limit

If the full output of the instantaneous water heater is not sufficient to heat
the tapped water quantity, this is indicated by the decimal point lighting up
(e.g. in winter when several taps are open at the same time). By reducing the
hot water flow, the dot stops lighting up as the power is again sufficient to
reach the set temperature.

Venting after maintenance work

This instantaneous water heater features an automatic air bubble protection
to prevent it from inadvertently running dry. Nevertheless, the appliance
must be vented before using it for the first time. Each time the appliance is
emptied (e.g. after work on the plumbing system, if there is a risk of frost
or following repair work), the appliance must be re-vented before it is used
again.
1. Disconnect the instantaneous water heater from the mains (e.g. via deac-
tivating the fuses).
2. Unscrew the jet regulator on the outlet fitting and open the cold water
tap valve to rinse out the water pipe and avoid contaminating the appli-
ance or the jet regulator.
3. Open and close the hot water tap until no more air emerges from the pipe
and all air has been eliminated from the water heater.
4. Only then should you re-connect the power supply again (e.g. via activat-
ing the fuses) to the instantaneous water heater and screw the jet regula-
tor back in.
5. The appliance activates the heater after approx. 10 seconds of continuous
water flow.

Cleaning and maintenance

• Plastic surfaces and fittings should only be wiped with a damp cloth. Do
not use abrasive or chlorine-based cleaning agents or solvents.
• For a good water supply, the outlet fittings (e.g. jet regulators and shower
heads) should be unscrewed and cleaned at regular intervals. Every three
years, the electrical and plumbing components should be inspected by an
authorised professional in order to ensure proper functioning and opera-
tional safety at all times.
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