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

Commissioning, inspection, maintenance
Further details regarding the individual steps
5. Check the outlet seals of the gas train
and fittings between the fan and the
boiler door and between the fan and
the venturi pipe for tightness.

Checking the gaskets/seals on the flue gas side

1. Check the gasket/seal on the flue gas
collector E between the flue gas col-
lector C and the boiler body A for
tightness.
28
A
C D
B
E
2. Check the lip seal B of the boiler flue
connection for tightness.
(cont.)