31
Checking the gaskets/seals on the flue gas side
E
A
B
C
D
1.
Check seal
A
between flue gas col-
lector
D
and boiler body
E
for tight-
ness.
2.
Check lip seal
B
of the boiler flue
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.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 908 GB