Reset To Factory Setting; How To Save Energy; Power Limit; Top­up Heating - clage DEX Mode D'emploi

DEX ELECTRONIC MPS ®
2. How to use
Reset
1
+
EN
Press + hold!

Power limit

Unit provides no output

Reset to factory setting

2
All factory settings can be recalled:
• Press
"00" in second intervals. The appliance is reset at value "00" ­ if you stop pressing
the keys earlier, you will cancel the process.
3
Reset completed

How to save energy

Set the exact temperature you need on the appliance and open the hot water tap.
Once you feel that the water is too hot, do not add any cold water and, instead, enter
a lower temperature on the appliance. If you were to add cold water, the water already
heated would cool down again and valuable energy would be wasted. Moreover, the
cold water added in the tap is not covered by the control range of the electronic cir­
cuitry, with the result that temperature constancy is no longer guaranteed.
Power limit
If the full output of the instantaneous water heater DEX does not suffice to heat the
tapped quantity of water, this will be indicated by the LCD decimal point (e.g. in winter
time, when open ing several taps at once). When you reduce the hot water flow rate,
the LCD point stops indicating because the output of the appliance is again sufficient
to reach the set temperature.
Top­up heating
When operating with preheated water (e.g. with solar systems), you must ensure that
the inlet temperature does not exceed 70 °C.
If the inlet temperature exceeds the setpoint, the appliance is not providing any out­
put, the flashing decimal point of the digital display indicates that the heating power
is switched off.

Venting after maintenance work

This instantaneous water heater features an automatic air bubble protection to pre­
vent 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 re­vented before it is used again.
1. Disconnect the instantaneous water heater from the mains (e.g. via deactivating 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 appliance 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 re­connect the power supply again (e.g. via activating the
fuses) to the instantaneous water heater and screw the jet regulator back in.
5. The appliance activates the heater after approx. 10 seconds of continuous water
flow.
and simultaneously. The display now counts backwards from "10" to
8