Cleaning The Flue Gas Fan, Lambda Probe And Flue Gas Temperature Sensor - Viessmann Vitoligno 300-C Installation And Service Instructions Manual

Emptying the ash box
A E
Fig. 46
01. Switch the boiler off with the "START/STOP" but-
ton at the control unit and wait until "Buffer draw-
ing" or "Residual heat utilisation" is shown on
the display.
02. Only for pellet supply via vacuum system:
Open l.h. front panel (door)
03. Open tensioning toggles
sion toggle clip.
Push the ash box slightly to the left.
04. Pull out locking pins
C
back as far as it will go.
05. Pull out ash box towards the front.
E
Note
The telescopic handle on top of the ash box can
be pulled out to various lengths.

Cleaning the flue gas fan, Lambda probe and flue gas temperature sensor

Danger
Working on the flue gas fan while it is running
can cause serious injury.
Turn off the boiler and safeguard against restart-
ing.
(cont.)
B
D
C
.
A
B by pushing the ten-
. Push ash partition
D
Commissioning, inspection, maintenance
06. Empty the ash box. For this, remove the cover
from the ash box.
07. Remove ash residues from the base plate.
08. Reseal the ash box with its cover.
09. Proceed in reverse order to re-insert the ash box
and close the boiler.
Note
Before closing the boiler, ash partition
be opened again.
10. Confirm message "Has the ash box been emp-
tied?" on the display.
11. Restart the boiler by pressing "START/STOP" on
the control unit.
has to
D
67