Stiebel Eltron DEM 3 Utilisation Et Installation page 47

INsTALLATIoN
Maintenance
14. Maintenance
DANGER Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
Draining the appliance
DANGER Scalding
Hot water may escape during the draining process.
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:
f Close the shut-off valve in the cold water inlet line. f
f Open the draw-off valve. f
f Undo the water connections on the appliance. f
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Cleaning the strainer
You can clean the fitted strainer after removing the cold water
supply pipe.
Checking the earth conductor
f Check the earth conductor (in Germany e.g. BGV A3) on the f
earth conductor contact of the power cable and on the appli-
ance connector.
Appliance storage
f Store the dismantled appliance in a room free from the risk f
of frost, as water residues remaining inside the appliance can
freeze and cause damage.
Replacing the power cable for the DEM 6
f If replacing the cable for the DEM 6, use a power cable with f
4 mm² cross-section.
DEM | 47