OPERATION
Settings
ENGLISH
www.stiebel-eltron.com DHF-C | 21
4. Settings
D0000042703
1 2
1 Partial load:
This setting is suitable for hand washing at a basin, for ex-
ample. At low flow rates, the appliance starts heating at half
the selected output.
2 Full load:
This setting is suitable for baths, showers and washing up,
for example. At low flow rates, the appliance starts heating
at half the selected output and at higher flow rates, the full
selected output.
Click the output selector into the required position.
For start volumes, see chapter "Specification/ Data table/ On".
Recommended settings when using a thermostatic valve
Set the output selector to full power.
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
Twin lever tap
Output stage Application range
Partial load Washbasin
Full load Bath, shower, sink
If the temperature is too high, mix in some cold water.
Mono lever mixer
Output stage Application range
Full load 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 of the water supply, the
appliance must be recommissioned by carrying out the
following steps:
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 the appliance to start
heating at the selected
output. The aerator in
the tap or the shower
head is scaled up or con-
taminated.
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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