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4.1 Recommended tap/valve settings
Note
If the outlet temperature is not high enough when the
draw-off valve is fully open at full power, then more water
is flowing through the appliance than can be heated by
the heating system (appliance is at its output limit).
Reduce the water volume at the draw-off valve.
Low draw-off rate = high outlet temperature
High draw-off rate = low outlet temperature
Recommended settings when using thermostatic valve
Set the output selector to full power.
Twin lever tap
Output stage Application range
Low power Washbasin
Full power Bath, shower, sink
Add cold water if the temperature is too high when the tap is
fully open.
Mono lever mixer
Output stage Application range
Full power All
Turn the tap lever to the highest temperature.
Fully open the tap.
Increase the outlet temperature by closing the tap slowly.
Reduce the outlet temperature by adding cold water or open-
ing the tap further, if possible.
Following an interruption of the water supply
!
Material losses
Following an interruption in the water supply, the appli-
ance must be recommissioned by carrying out the fol-
lowing steps, in order to prevent damage to the tubular
heater heating system.
Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
Switch the mains power back ON again.
5. Cleaning, care and maintenance
Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
Check the taps regularly. Limescale deposits at the spouts
can be removed using commercially available descaling
agents.
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no power.
Check the fuses/MCBs in
your fuse box/distribu-
tion panel.
The flow rate is too low
for switching on the
heating output. The
aerator in the tap or the
shower head is scaled up
or contaminated.
Clean and/or descale the
aerator or shower head.
If you cannot remedy the fault, notify your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-00000):
Nr.: 000000-0000-00000
D0000042704
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