Cleaning Secondary Heating Surfaces - Viessmann VITOLIGNO 300-P Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
6. Refit thermal insulation block C and
close combustion chamber door.

Cleaning secondary heating surfaces

A
B
C
D
E
F
G
H
48
1. Remove rear top panel A and ther-
mal insulation mat B.
2. Remove flame temperature sensor
C and clean off any ash deposits.
3. Remove cleaning cover D.
4. Undo screws E and pull out hangers
F with cleaning spirals G.
Note
Number of cleaning spirals and sec-
ondary heating surfaces (flues)
■ 12 to 24 kW: 6 pce
■ 32 to 48 kW: 10 pce
5. Clean secondary heating surfaces
(flues) H and reversing chambers
K with a cleaning brush and vacuum
cleaner.
K 6. Reassemble in reverse order.
(cont.)