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INSTALLATION
Maintenance
ENGLISH
16. Maintenance
WARNING Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly exceed60VDC.
Draining the appliance
The appliance can be drained for maintenance work.
WARNING Burns
Hot water may escape when you drain the appliance.
Close the 3-way ball shut-off valve or the shut-off valve in the
cold water inlet line.
Open all draw-off valves.
Undo the pipe connections from the appliance.
Store the dismantled appliance free from the risk of frost, as
water residues remaining inside the appliance can freeze and
cause damage.
Clean strainer
If the strainer in the threaded cold water fitting is dirty, clean it.
Close the 3-way ball shut-off valve or the shut-off valve in the
cold water inlet line before removing, cleaning and refitting the
strainer.
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