Viessmann Vitodens 300 Service Instructions Manual page 21

Further details regarding the individual steps
Cleaning the combustion chamber/heating surfaces and
installing the burner
Initial start-up, inspection, maintenance
(cont.)
1. If required, clean combustion
chamber A and heating
surfaces B with a brush or flush
with water.
!
Important information
Scratches on parts which
are in contact with flue
gases can lead to corrosion.
Only use plastic brushes and
NOT wire brushes.
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
c: Intec Bassersdorf AG
Grindelstrasse 12
Postfach
CH-8303 Bassersdorf
2. Install the burner and torque nuts
diagonally with 4.5 Nm.
21