Viessmann vitocrossal 300 Installation Instructions Manual page 8

Assembly when supplied in sections
!
Please note
Scratches on parts that are in
contact with flue gas can lead to
corrosion.
Never put tools or other objects
into the combustion chamber.
1. Apply sufficient (2-3 tubes) sealing
material (part of the standard deliv-
ery) evenly to the annular groove of
the combustion chamber and heat
exchanger modules.
2. Position the heat exchanger module
on the combustion chamber module.
Note
Use the lifting eye to lift the heat
exchanger module.
3. Insert gaskets (in the pack supplied)
between the upper and lower flanges
and tighten screws and nuts diago-
nally.
4. Fit and tighten the M16 nuts by
hand.
8
(cont.)
5. Check that there is sufficient sealant
all around the sealing face of the
combustion chamber.
Close any gaps between the com-
bustion chamber module and the
heat exchanger module with seal-
ant.
Danger
Solvent vapours from the
sealant can cause irritation of
the respiratory system.
Ensure adequate ventilation
in the combustion chamber or
wear breathing equipment.
Note
Allow 4 hours for the sealant to dry
before commissioning.
6. Remove excess sealant (out of the
combustion chamber) from the heat
exchanger module.