Maintenance; Draining The Appliance; Opening The Appliance; Removing The Flanged Immersion Heater - STIEBEL ELTRON SHU 10 SLi Bedienung Und Installation

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16. Maintenance

DANGER Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
ª Dismount the appliance for maintenance work.
ª For the torque of the flange screws, see chapter
"Specification / Data table".

16.1 Draining the appliance

DANGER Scalding
Hot water may escape during the draining process.
Drain the appliance via the connector.

16.2 Opening the appliance

ª Pull off the controller selector and the limiter ring.
ª Remove the screws underneath the rotary selector.
ª Open the appliance cap by lowering the bolt screws inwards
and pivot the cap upwards, then remove it.
16.3 Removing the flanged immersion heater

16.4 Removing the protective anode

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16.5 Fitting the protective anode

ª To include the steel cylinder in the earthing mass, follow the
order of installation of the fixing elements of the protective
anode, see chapter "Removing the protective anode".

16.6 Descaling

ª Remove the flanged immersion heater.
ª Carefully tap the immersion heater element to remove larger
limescale deposits and immerse the heating element up to
the flange plate in descaling agent. Never treat the cylinder
surface or the protective anode with descaling agents.

16.7 Checking the protective anode

ª Check the protective anode for the first time 8 years after
installation. For this, remove the flanged immersion heater;
see chapter "Removing the flanged immersion heater and
protective anode". Replace the protective anode if worn.
ª Afterwards determine the time intervals at which further
checks should be carried out.

16.8 Checking the earth conductor

ª Pull off the controller button.
ª Check the earth conductor on a water connector and on the
earth conductor contact of the power cable.

16.9 Replacing the power cable

ª The power cable must only be replaced by a qualified
contractor with the original spare part.
Spare parts are offered by Stiebel Eltron, see spare parts list.
ª Insert the power cable into the retainer.

16.10 Temperature controller / limiter sensor

When replacing or removing the temperature controller / limiter,
reinsert the sensors into the protective pipe in accordance with
the following diagrams.
L1
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SHU 10 SLi l SHU 10 SL 2 kW
SH 10 SLi 2 kW
SH 15 SLi 2 kW
SH 15 SLi 3.3 kW
L2
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180 160
160 250
200 310
200 320
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