Viessmann VITOMAX 200-HS Operating And Service Instructions page 52

Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
A
A
A
Check all gaskets/seals A and insulat-
ing parts for damage and a firm seat.
Note
Only undamaged and properly fixed
materials protect against the egress of
gas and overheating, and consequently
against material damage and injury.
52