Cleaning Intervals; Combustion Chamber - Viessmann VITOFLEX 300-UF Operating Instructions Manual

Maintenance
Cleaning
(cont.)

Cleaning intervals

Fig. 4
Activity
Heat exchanger A
Check sight glasses of light barriers for dirt and clean if necessary
Remove any deposits from the apertures for the sight glasses.
Clean heat exchanger together with complete flue gas path and re-
versing area
B
Clean lambda probe C
Clean primary air fan, secondary fan and flue gas fan

Combustion chamber

Check ash level in ash removal channel
and if necessary remove ash in manual mode
Note
After cleaning, the ash removal screw conveyor must be covered
with ash again. This will protect the ash channel and the ash re-
moval screw conveyor from excessive temperatures.
Adjust the ash removal cycle via the control unit if necessary.
Check combustion block with grate
and clean if necessary.
Cleaning interval depends on fuel and fuel quality
40
K
through the sight glass
F
for dirt and slag deposits
D
Interval
Daily 300 900
hours hours
O
O
O
Annually
O
O
O