ENGLISH
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Installation
Taking the appliance out of use
1
2
26�02�09�0010
1 Limiter disc
2 Without limiter disc, maximum 82°C
You can set the limit to 45°C / 60°C by rotating the limiter
disc. After removing the limiter disc, the maximum tempera-
ture can be set.
Replace the control panel cover and temperature selector.
13. Taking the appliance out of use
Isolate the appliance from the power supply by means of the
fuse/MCB in your fuse box/distribution panel.
Drain the appliance. See chapter "Maintenance / Draining the
appliance".
14. Troubleshooting
Note
The high limit safety cut-out can respond at temperatures
below –15°C. The appliance may be subjected to these
temperatures during storage or transport.
Fault Cause Remedy
The water does not heat
up.
The high limit safety
cut-out has responded
because the thermostat
is faulty.
Replace the thermostat
and press the high limit
safety cut-out reset but-
ton.
The high limit safety
cut-out has responded
because the temperature
has dropped below -15
°C.
Press the reset button.
The booster heater does
not switch on.
Check the contactor and
replace if required.
A heating element is
faulty.
Replace the heating ele-
ment.
The safety valve drips
when the heating is
switched off.
The valve seat is con-
taminated.
Clean the valve seat.
26�02�09�0070�
1
1 High limit safety cut-out reset button
15. Maintenance
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
WARNING Electrocution
Before any work on the appliance, disconnect all poles
of the appliance from the power supply.
If you need to drain the appliance, observe chapter "Draining the
appliance".
15.1 Checking the safety valve
Regularly vent the safety valve on the safety assembly until a
full water jet is discharged.
15.2 Draining the appliance
WARNING Burns
Hot water may escape during draining.
If the appliance needs to be drained for maintenance or to protect
the whole installation when there is a risk of frost, proceed as
follows:
Close the shut-off valve in the cold water line.
Open the hot water taps on all draw-off points.
Drain the appliance using the drain valve.
15.3 Checking / replacing the protective anode
Check the protective anode after the first two years of use
and replace if necessary. Check that the maximum transition
resistance between the protective anode and the cylinder is
0.3Ω. If it is not possible to insert a rod anode from above,
install a segmented anode.
Decide the time intervals at which further checks should be
carried out.
Removing the protective anode
Open the zip fastener in the cylinder casing.
Cut away the thermal insulation where you can detect the
protrusion (identification by colour).
15.4 Descaling the heating elements
Never use descaling pumps.
Only descale the flanged immersion heater after dismantling
and never treat the cylinder surface or protective anode with
descaling agents.
Torque of the flange screws: see chapter "Specification / Dimen-
sions and connections".
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