7 Cleaning and servicing the heating system – Procedure
54
✓
The fill level of the water tank has been checked.
C
HECKING
AND
CLEANING
THE
RESERVOIR
AND
FLAP
OF
THE
DELIVERY
UNIT
The reservoir and the flap of the delivery unit have to be cleaned
when too much dust has accumulated or there is a foreign body in
the reservoir. If no pellets can be delivered to the reservoir by the
pellet suction system, emergency manual filling is possible via the
inspection hatch.
1.
Switch the heating system off.
✎
See the “HDG Control” operating manual, chapter “5 Using the
control unit”, section “5.3 Switching off the heating system”.
2.
Allow the fire in the heating system to burn out and cool down.
1.
Check the fill level of the
water tank (1) (volume
approx. 8 l).
✓
If the minimum fill level
indicator is not reached,
water must be added.
2.
Top up the water tank (1).
Figure 7/18 - Water tank fill level
1
Important!
Observe the “Generally applicable safety instructions” in this
section.
Caution!
Risk of serious injury if the stoker auger starts up
The stoker auger can start up unexpectedly. When the inspection
hatch is open, you hands or fingers can be crushed.
Before opening the inspection hatch on the reservoir, always
disconnect the boiler from the power supply (pull out the mains
plug) and secure it against being switched on again.
3.
Lift off the top right cover (1)
of the boiler.
Figure 7/19 - Removing the upper cover
1
