Checking For Tightness On The Flue Side - Viessmann Vitocrossal 200 Service Instructions For Contractors

Commissioning, inspection, maintenance
Further details regarding the individual steps

Checking for tightness on the flue side

A
30
(cont.)
1. Check flue gas collector A and the
boiler shell for tightness.
Danger
Escaping flue gas can cause
health problems.
Check gaskets on the flue gas
collector and adjust, if
required.
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 A or on thermal
insulation components also indicate
a leak.
2. If required, retighten flue gas collec-
tor A to a torque of 10 Nm.
Note
We recommend you check the gas-
ket roughly every 500 hours run and
possibly retighten the nuts and
ensure that the gasket is correctly
seated.