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iNSTALLATiON
Cleaning, care and maintenance
f Refit the terminal box cover before connecting the appliance
to the mains power supply.
f Adjusting the temperature setting on the temperature con-
troller only changes the temperature of the water in the
cylinder. The temperature supplied to the taps is set at the
mixing valve.
3.2
Resetting the temperature controller
If there is a risk of overheating, the temperature controller on the
appliance will switch off. The temperature controller can be reset
by removing the cover and pressing the red RESET button Consult
a qualified contractor if the temperature controller fails repeatedly.
3.3
Holiday and absence
f If you are not going to use the appliance for a long period,
switch it off. The installation room must be consistently free
from the risk of frost.
f If absence is expected for a period of more than 60 days,
drain the appliance.
f If you have not used the appliance for a prolonged period,
heat the cylinder content once to 60 °C before initial use, for
reasons of hygiene.
4.
Cleaning, care and maintenance
f Have the electrical safety of the appliance and the function of
the safety valve regularly checked by a qualified contractor.
f Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the unit.
Scaling
f Almost every type of water will deposit limescale at high
temperatures. This settles inside the appliance and affects
both performance and service life. The heating elements
must therefore be descaled from time to time. A qualified
contractor who knows the local water quality will tell you
when the next service is due.
f Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
f Regularly activate the safety valve to prevent it from becom-
ing blocked, e.g. by limescale deposits.
5.
Troubleshooting
problem
Cause
No water is supplied at
The water supply is off.
the hot water taps.
The mains power supply
is off.
Very hot water is contin-
The safety cut-off switch,
uously leaking from the
temperature controller
tundish.
or temperature and
pressure limiter is not
working properly.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-000000).
www.stiebel-eltron.co.uk
iNSTALLATiON
6.
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
6.1
We guarantee trouble-free function and operational reliability
only if original accessories and spare parts intended for the unit
are used.
6.2
remedy
Open the appliance shut-
off valve.
Check the fuse. If the fuse
is intact, contact a quali-
fied contractor.
Switch off the power
supply to the threaded
immersion heaters. Then
contact a qualified con-
tractor.
Safety
General safety instructions
WARNING Burns
The tap and safety valve can reach a
temperature of over 60 °C in operation.
There is a risk of scalding at outlet temperatures in ex-
cess of 43 °C.
WARNING Injury
The safety valve overflow must not be sealed or blocked
off.
WARNING Injury
The power cable must be heat resistant up to 90 °C. Al-
ways fit a cable clamp or strain relief.
WARNING Injury
Always fill the appliance with water before switching
it on.
CAUTION Injury
The DHW cylinder must be installed in compliance with
the applicable building regulations.
CAUTION Injury
Never cover the appliance.
Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
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Table of Contents
Troubleshooting
