clage German Pool DEX12, User Manual

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12. How to use
12. How to use
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Temperature limitation
The instantaneous water heater DEX12 is equipped with
an optional temperature limiting function. This scalding
protection is deactivated in the factory setting.
Switch on: Select the limit temperature, then press
and
simultaneously for at least 3 sec. The display
briefly confirms the activation by “HI“.
Switch off: press program key and simultaneously
for at least 3sec. The display briefly confirms the
deactivation by “--“.
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.
+
Reset
1
Press + hold!
Reset completed
3
2
+
Press
≥ 3 sec
1
2
Scalding protection off
Confirmation
of deactivation
Scalding protection on
+
Press
≥ 3 sec
1 2
Note
By activation of the temperature limit also the
programme keys are limited. Therefore, the fixed
values of the programme keys may be set again
after deactivation of the temperature limitation.
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 circuitry, with the result that temperature
constancy is no longer guaranteed.
Power limit
Unit provides no output
Power limit
If the full output of the instantaneous water heater DEX12 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
opening 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.
Top-up heating
When operating with preheated water, you must ensure that
the inlet temperature does not exceed 25°C.
If the inlet temperature exceeds the setpoint, the appliance
is not providing any output, the flashing decimal point of the
digital display indicates that the heating power is switched off.
Venting after maintenance work
The instantaneous water heater DEX12 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 by disactivating 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.
4. Only then should you reconnect the power supply 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.
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 (special tap aerators 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 operational safety at all times.
Power limit
Unit provides no output