Viessmann Vitocal 300-G Series Installation And Service Instructions Manual page 3

Safety instructions
Auxiliary components, spare and wearing parts
!
Please note
Spare and wearing parts that have not been tes-
ted together with the system can compromise its
function. Installing non-authorised components
and making non-approved modifications or con-
versions can compromise safety and may inva-
lidate our warranty.
For replacements, use only original spare parts
supplied or approved by Viessmann.
Safety instructions for operating the system
What to do if water escapes from the appliance
Danger
If water escapes from the appliance there is a
risk of electrocution.
Switch OFF the heating system at the external
isolator (e.g. fuse box, domestic distribution
board).
(cont.)
Danger
If water escapes from the appliance there is a
risk of scalding.
Never touch hot heating water.
Safety instructions
3