Cleaning The Combustion Chamber And Heating Surfaces; Checking Gaskets And Thermal Insulation Parts - Viessmann VITOCROSSAL 300 Type CT3 Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Cleaning the combustion chamber and heating surfaces

!
Please note
Contact with unalloyed iron and
scratches on parts in contact with
flue gases can lead to corrosion.
Only use plastic brushes, NOT
wire brushes or sharp objects.
1. Clean the combustion chamber and
heating surfaces.
■ For normal cleaning, flush the heat-
ing surfaces thoroughly with a
water jet.
■ However, you may use cleaning
agents if you notice stubborn resi-
dues, surface discolouration or
soot deposits.
For this, observe the following:
– Only use solvent-free cleaning
agents. Ensure that no cleaning
agents enter between the boiler
body and the thermal insulation.
– 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).

Checking gaskets and thermal insulation parts

1. Check gaskets and the packing cord
in the boiler door for damage.
2. Check the thermal insulation compo-
nents of the boiler door for damage.
10
(cont.)
2. Remove loose deposits from the
boiler; flush the heating surfaces and
the flue gas collector thoroughly with
a water jet.
Danger
Loose residues and residual
cleaning agents can lead to
injury.
Wear goggles, protective gloves
and protective clothing.
Cleaning agent manufacturer's
details.
Note
"Fauch 600" and "Antox 75 E"
Manufacturer:
Hebro Chemie GmbH
Rostocker Straße 40
D -41199 Mönchengladbach
3. Replace any damaged parts.