58
Maintenance
Maintenance details
1
2
3
4
5
6
19
16
15
17
18
OPEN
CLOSED
Check the disassembled components
for soiling and, if necessary, clean
them.
- Loosen the upper left-hand (5) and
right hand (6) clamping rod with a
hexagonal key (4 mm) by turning
it by a 45° (please pay attention to
the red markings on the clamping
rods).
- Pull the clamping rods out towards
the front.
- Remove the entire fan unit,
including the gas valve, from the
heat exchanger.
- Remove the burner cassette (15)
from the mixing head (16).
- Inspect the burner cassette for
wear and tear, soiling and defective
burner blocks. The burner cassette
should be cleaned with a soft brush
and a vacuum cleaner. In case of a
torn burner cassette/burner block, it
will be necessary to exchange the
entire cassette.
- Check the fan unit and the gas-
air distribution plate for soiling.
Whenever necessary, these can
be cleaned with a soft brush in
combination with a vacuum cleaner.
Fan unit (17)
Inspect the fan unit and the gas-air
distribution plate for soiling. Whenever
necessary, these can be cleaned with
a soft brush, in combination with a
vacuum cleaner.
Non-return valve (18)
Check the installed non-return valve for
smooth operation.
CAUTION:
Hazard to life by poisoning!
In case of systems with multiple
users, an incorrect function of the
non-return valve can endanger the
lives of people through leaking flue
gas.
Heat exchanger (19)
Check the heat exchanger for soiling.
Clean the heat exchanger with a soft
brunch and a vacuum cleaner.
CAUTION:
Please make sure that no dirt
particles fall down into the heat
exchanger.
Flushing the heat exchanger from
the top with water is not permitted.
An assembly must be carried out in
reverse order.
During the assembly, attention must
be paid that the red markings on the
attachment rods stand in a vertical
position.
