Cleaning the combustion chamber/heating surfaces and fit-
ting the burner
!
Please note
Scratches on parts that are in contact with flue gas can lead to corrosion.
Never use brushes to clean the heat exchanger.
1.
Use a vacuum cleaner to remove
residues from the heat
exchanger
A
inside the combus-
tion chamber.
2.
If required, spray slightly acidic,
chloride-free cleaning agents
based on phosphoric acid (e.g.
Antox 75 E) onto the heat
exchanger
A
and let the solution
soak in for approx. 20 min.
3.
Thoroughly flush the heat
exchanger
A
with water.
4.
Install the burner and torque nuts
diagonally with 4 Nm.
5.
Fit the gas supply pipe with a new
gasket.
6.
Check the gas connections for
tightness.
Danger
Escaping gas leads to a risk
of explosion.
Check all fittings for gas-
tightness.
7.
Connect the electrical cables/leads
to each corresponding component.
Further details regarding the individual steps
(cont.)
20
Commissioning, inspection, maintenance
5692
673
GB
Summary of Contents for VITODENS 300-W
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