OPERATION
Cleaning, care and maintenance
26 | DEL SL electronic LCD www.stiebel-eltron.com
1 Set temperature setting range 30 - 60°C (without end-stop)
35°C to 43°C in 0.5°C increments, other temperature ranges
in 1°C increments
2 Call up preferred temperatures
3 Set the temperature limit
Memory keys M1 and M2 can each be assigned a preferred tem-
perature.
Select a preferred temperature.
Press one of the M keys for 3seconds to save the preferred
temperature . The temperature is confirmed with 1x flashing.
v
!
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
(working at maximum output).
Reduce the water volume at the draw-off valve until
the required temperature delivery is achieved.
4.2 Temperature limit (child-proofing)
M1
Tmax
M2
D0000040981
The temperature limit can be individually set between 30°C and
60°C.
Enabling the temperature limit (child-proofing)
Press and hold the Tmax key for >6seconds. The set value
display flashes and the current temperature limit is shown.
The value for the temperature limit can be changed while
the display is flashing. If no key is pressed for 10seconds,
the display stops flashing and the value is stored. The display
then shows the set value and the Tmax symbol.
Disabling the temperature limit (child-proofing)
Press and hold the Tmax key for >6seconds.
The Tmax symbol on the display is no longer shown.
4.3 Inlet temperature information
If the inlet temperature is higher than the preferred temperature,
e.g. if water has been preheated by solar energy, the display alter-
nates between showing "hot" and the measured inlet temperature.
The LED scalding risk indicator also flashes.
Recommended setting for operation with a thermostatic valve
and water preheated by solar energy
Set the temperature at the appliance to the max.
temperature.
4.4 Following an interruption to the water supply
!
Material losses
Following an interruption of the water supply the appli-
ance must be recommissioned by carrying out the follow-
ing steps, in order to prevent the destruction of the bare
wire 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/valves regularly. Limescale deposits at the
spouts can be removed using commercially available descal-
ing agents.
6. Troubleshooting
Fault Cause Remedy
The appliance will
not start despite the
DHW valve being
fully open.
There is no voltage in the
appliance.
Check the fuses/MCBs in
your fuse box.
The aerator in the tap or
the shower head is scaled
up or contaminated.
Clean and/or descale the
aerator or shower head.
The water supply has been
interrupted.
Vent the appliance and the
cold water inlet line (see
chapter "Settings / Follow-
ing an interruption to the
water supply").
Cold water flows
briefly while hot
water is being
drawn.
The air sensor detects air
in the water and the ap-
pliance's heating output is
briefly switched off.
The appliance restarts au-
tomatically after 1minute.
The temperature at
the appliance cannot
be set to >43°C.
The child-proofing Tmax is
enabled.
Disable the child-proofing
(see chapter "Appliance
description")
The anti-scalding protec-
tion in the appliance is
enabled.
Your qualified contractor
can disable the anti-scald-
ing protection for you.
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 (000000-0000-000000):
No.: 000000-0000-000000
DEL ... SL
26�02�02�1125�
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