STIEBEL ELTRON DHM 3 Bedienung Und Installation Seite 40

INSTALLATIoN
Maintenance
Activating the safety pressure limiter
1
2
1 1-pole safety pressure limiter DHM 4 / DHM 6
2 2-pole safety pressure limiter DHM 3 / DHM 7
14. Maintenance
DANGER Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
40 | DHM
14.1 Draining the appliance
DANGER Scalding
Hot water may escape when you drain the appliance.
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 Open the draw-off valve.
f Undo the water connections on the appliance.
14.2 Cleaning the strainer
You can clean the fitted strainer after removing the cold water
supply pipe.
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