STIEBEL ELTRON 233991, Эксплуатация и установка, Страница: 5 / 96

OPEraTiON
Settings
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4. Settings
The DHW outlet temperature can be variably adjusted. The se-
lected temperature is displayed. At temperatures over 43 °C, the
colour of the display changes from blue to red to indicate a risk
of scalding.
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f f Turn the temperature selector to the required temperature.
Note
If the outlet temperature is not sufficiently high when the
draw-off valve is fully open and the temperature selector
is set to maximum, then more water is flowing through
the appliance than can be heated by the heating system
(appliance is at its output limit).
f f Reduce the water volume at the draw-off valve.
4.1 Recommended settings
Thermostatic valve
Your instantaneous water heater offers maximum precision and
maximum convenience in DHW provision. Should you nonetheless
be operating the appliance with a thermostatic valve, we recom-
mend that you:
f f Adjust the set temperature on the appliance to over 50 °C.
Then set the required set temperature on the thermostatic
valve.
Following an interruption to the water supply
!
Material losses
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be restarted by taking the following steps.
f f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f f Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
f f Switch the mains power back on again.
5. Cleaning, care and maintenance
f f
Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
f f
Check the taps regularly. Limescale deposits at the tap out-
lets 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 board.
The flow rate is too low.
The aerator in the tap
or the shower head is
scaled up or dirty.
Clean and/or descale the
aerator or shower head.
Required temperature
> 45 °C is not achieved.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line
(see chapter "Settings").
The cold water inlet tem-
perature is > 45 °C.
Reduce the cold water
inlet temperature.
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
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