7 Cleaning and servicing the heating system – Procedure
75
9.
If necessary, remove deposits and dust with a vacuum cleaner.
10.
Clean the flue gas flap (6) and the suction channel behind it with
a suitable cleaning tool (e.g. scraper) or with a vacuum cleaner.
11.
Unlatch the actuating handle of the flue gas flap.
12.
Remove the clip connectors (2 + 4).
13.
Remove the retaining plate (3 + 5) for the turbulators.
14.
Pull out the two clip connectors (1 + 4).
15.
Lift out the large guide crossbar (5) in an upward direction.
16.
Pull out the cleaning turbulators (2) in an upward direction.
17.
Clean the heat exchanger pipes (3) using the round cleaning
brush.
18.
Mount the cleaning turbulators in the reverse sequence.
19.
Close the boiler in the reverse sequence.
20.
Make sure that the cleaning shaft lid is closed properly.
✓
The cleaning system, the heat exchanger surfaces and the flue gas
flap have been cleaned.
Figure 7/11 - Pulling out the cleaning turbulators
5
4
2
1
3
Important!
When cleaning the heat exchanger surfaces, always first push the
cleaning brush all the way down and through before you pull it up
again, so that the wire bristles of the brush are not bent.
Summary of Contents for F20
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