Maintenance Intervals - Viessmann VITOLIGNO 250-S Operating Instructions Manual

Information on cleaning
■ Carry out the cleaning at the specified intervals, see
page 44.
Only clean the boiler with the cleaning equipment
■
provided and an ash vacuum cleaner. Never use
chemical cleaning agents.

Maintenance intervals

B
A
Fig. 33
Ash chamber door
A
Hopper cover
B
Sight glass
C
Cleaning cover, heat exchanger
D
(cont.)
C
D
E
F
G
Note
The cleaning intervals are intended as a guide that can
be adapted, if required, to the fuel quality and operat-
ing conditions.
Combustion chamber maintenance cover
E
Flue gas fan
F
Cleaning door
G
Maintenance
43