Cleaning The Combustion Chamber/Heating Surfaces And Fitting The Burner - Viessmann Vitodens 333 Service Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Cleaning the combustion chamber/heating surfaces and fit-
ting the burner
1. If required, clean the combustion
chamber and heating surfaces A
with a brush or flush with water.
!
Please note
Scratches on parts which
are in contact with flue
gases can lead to corrosion.
Only use plastic brushes
and NOT wire brushes.
22
(cont.)
2. Apply a solvent/potassium free
cleaning agent if residues remain:
Remove soot deposits with alka-
line cleaning agents with addi-
tional surfactants (e.g.
Fauch 600).
Remove coatings and surface
discolouration (yellow brown)
with slightly acidic, chloride free
cleaning agents based on phos-
phoric acid (e.g. Antox 75 E).
Thoroughly flush with water.
Note
Fauch 600 and Antox 75 E are sup-
plied by
Hebro Chemie GmbH
Rostocker Straße 40
D 41199 Mönchengladbach
3. Install the burner and torque nuts
diagonally with 4 Nm.
4. Secure the gas supply pipe with a
new gasket.
5. Check the gas connections for
soundness.
Danger
Escaping gas leads to a risk
of explosions.
Check all fittings for sound-
ness.
6. Connect the electrical cables/leads
to each corresponding component.