Viessmann VITODENS 050-W Installation And Service Instructions Manual page 4

Safety instructions
Safety instructions
Danger
Hot surfaces and flu-
ids can lead to burns
or scalding.
■Before maintenance
and service work,
switch OFF the
appliance and let it
cool down.
■Never touch hot
surfaces on the
boiler, burner, flue
system or pipework.
!
Please note
Electronic assem-
blies can be dam-
aged by electrostatic
discharge.
Prior to commencing
work, touch earthed
objects such as heat-
ing or water pipes to
discharge static
loads.
4
(cont.)
Repair work
!
Please note
Repairing compo-
nents that fulfil a
safety function can
compromise the safe
operation of the sys-
tem.
Replace faulty com-
ponents only with
genuine Viessmann
spare parts.