Checking The Gaskets/Seals On The Flue Gas Side - Viessmann VITOCROSSAL 200 Service Instructions Manual

Further details regarding the individual steps

Checking the gaskets/seals on the flue gas side

A
B
1. Check seal A between flue gas col-
lector D and boiler body E for tight-
ness.
Commissioning, inspection, maintenance
C D
2. Check lip seal B of the boiler flue
(cont.)
E
connection for tightness.
Note
The seals/gaskets can also be
checked under full load with an
inspection mirror. If required, remove
the thermal insulation components.
Traces of condensate on the outside
of flue gas collector D also point
towards a leak.
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