Maintenance - STIEBEL ELTRON DEM 4 Bedienung Und Installation

INSTALLATION

Maintenance

Activating the safety pressure limiter
1
2
1 1-pole safety pressure limiter DEM 4 / DEM 6
2 2-pole safety pressure limiter DEM 3 / DEM 7
48 | DEM
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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