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Operating instructions
Please read the operating instructions carefully before
you use the appliance!
Safety information
This appliance is intended for domestic use or for house-
hold-based non-commercial applications. Household-
based applications include, e.g. usage in employees
catering facilities for shops, offices, agricultural and
other commercial operations, as well as usage by guests
of guest houses, small hotels and similar residential
establishments.
Risk of electric shock!
Switch off the mains voltage supply immediately if
a fault occurs.
We do not accept liability for damage resulting from
failure to heed these instructions.
The continuous-flow heater may only be connected
and put into operation by a qualified professional.
Repairs may only be undertaken by a suitably qualified
specialist to avoid potential sources of danger.
The continuous-flow heater may only be installed in a
frost-free room.
Persons (including children) with diminished bodily, sen-
sory or mental perception, or those who lack knowledge or
experience should not operate the appliance, unless they
are monitored or have received instruction concerning use
of the appliance by persons responsible for their safety.
Keep children away from the appliance. Please moni-
tor children to ensure that they do not play with the
appliance.
The mixer and the warm water pipe may be hot.
Please switch off all fuses immediately if a malfunction
occurs. Immediately shut off the cold water supply to the
appliance should it leak. The malfunction can only be re-
paired by a specialist or an authorised service agent.
Your new appliance
The electronic continuous-flow heater "electronic comfort
plus" is intended exclusively for heating water which flows
through the appliance.
The continuous-flow heater switches on and heats the water
when the warm water tap is opened. It switches off as soon as
the tap is closed.
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Special accessories
Pipe kit BZ 45U20: for use of the continuous-flow heater
as an under sink appliance
Priority switch (load shedding relay) BZ 45L20:
for operation with a priority circuit
Mounting kit BZ 45K23: for surface mount installation
Thermostatic premixer BZ 45T20: for installation in the
domestic plumbing when using preheated water
Operating the continuous-flow
heater
The default temperature for the water temperature after
setting the first start-up or a power failure is 40 °C.
Selecting shower temperature
Select the required temperature with the rotary knob used to
vary the desired temperature from 20 °C to 60 °C in steps of
0.5 °C.
Info: The temperature shown in the display is the water tem-
perature inside the appliance. The temperature of the water
leaving the tap can vary from this due to heat losses in the
pipework.
Conserving energy and water
Mixing in of cold water in the fitting requires unnecessary
water and energy. You should therefore set the desired tem-
perature directly on the continuous-flow heater and then
open the water tap.
Pre-warmed water
The continuous-flow heater can be operated with pre-
warmed water (for example from a solar energy unit).
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