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iNSTALLATiON
maintenance
14. Maintenance
Warning Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
Draining the appliance
You can drain the appliance for maintenance work or to protect
it from frost.
DANGER Scalding
Hot water may escape when draining the appliance.
f Close the shut-off valve in the cold water inlet line.
f
f Open all draw-off valves.
f
f Remove the power supply.
f
f Undo the water connections on the appliance.
f
Adjusting the flow rate
If the required temperature is not achieved, you can limit the flow
rate. This will give you a higher temperature.
f Set the flow rate with the adjusting screw in such a way that
f
the outlet temperature complies with the details in chapter
„Specification / Data table".
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Cleaning the strainer
You can clean the fitted strainer after removing the cold water
connection pipe.
1.
90°
2.
1 Earthing screw
2 Strainer
3 Cold water connection pipe
f Undo the earthing screw by approx. two turns.
f
f Undo the cold water connection pipe by turning the pipe in
f
the differential pressure switch through 90° and pulling it
downward.
f Clean the strainer or replace if required.
f
f Reinstall the parts in reverse order.
f
Material losses
!
Always secure the earthing screw.
Activating the high limit safety cut-out
Once faults have been remedied, you can reactivate the high limit
safety cut-out.
f Isolate the appliance from the power supply and depressur-
f
ise the water line. Push in the high limit safety cut-out reset
button.
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.
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DHA 4-8 L |
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