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Installation - for contractors
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:
» Close the shut-off valve in the cold water inlet line.
» Open the draw-off valve.
» Undo the water connections on the appliance.
36
Cleaning the strainer
You can clean the fitted strainer after removing the cold
water supply pipe.
Checking the earth conductor
» Check the earth conductor (in Germany e.g. BGV
A3) on the earth conductor contact of the power
cable and on the appliance connector.
Appliance storage
» Store the dismantled appliance in a room free from
the risk of frost, as water residues remaining inside
the appliance can freeze and cause damage.
Replacing the power cable for the MTD 570
» If replacing the cable for the MTD 570, use a power
cable with 4 mm² cross-section.
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