eta eHACK 20-50 kW, Руководство по обслуживанию

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Cleaning and maintenance Maintenance (expert)
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2.6 Maintenance (expert)
2.6.1 Preparation
Before this maintenance, perform all steps for the
preceding maintenance intervals
Before this maintenance, all steps for the
preceding maintenance intervals must be
performed.
WARNING!
The following activities may only be performed by
qualified specialist personnel.
If you carry out these activities without the correspond-
ing specialist training, and above all without the
required experience, safe operation is no longer
guaranteed. The resulting defects and consequential
damage are excluded from the guarantee and
warranty.
Equally an incorrect performance of these activities
can lead to serious injuries.
Stop heating
End the boiler's heating mode with the On/Off switch
in the boiler overview window. The boiler
performs an ember burnout and then changes to
[Switched off] mode. Press the [De-ash]
button to
make the boiler perform a final de-ashing.
WARNING!
Switch off the electricity to the boiler via the mains
switch

Switch off the electricity to the boiler via the mains
switch. This prevents injuries caused by switching
the boiler on inadvertently.
WARNING!
Burns caused by hot parts
Risk of burning on parts located behind the
boiler housing, even after shutting the boiler
down.

Allow the boiler to cool down sufficiently
before starting any activities.
2.6.2 Clean draught fan
Cleaning the draught fan
Unplug the power supply and remove the draught fan
from the boiler by loosening the nuts.
Fig. 2-64: Draught fan
Remove the ash from the fan housing on the boiler.
Fig. 2-65: Fan housing
Carefully clean the impeller of the draught fan with a
soft brush (not a wire brush) or with compressed air, so
that the impeller does not move out of balance.
Replace the seal on the draught fan.
Fig. 2-66: Clean impeller; replace seal