3
Danger
Hot surfaces and fluids 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 pipe-
work.
!
Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
Prior to commencing work, touch
earthed objects such as heating or
water pipes to discharge static
loads.
Repair work
!
Please note
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
Replace faulty components only
with genuine Viessmann spare
parts.
Auxiliary components, spare and
wearing parts
!
Please note
Auxiliary components, spare parts
and wearing parts that have not
been tested together with the sys-
tem can compromise its function.
Installing non-authorised compo-
nents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For installation and replacements,
use only Viessmann original parts
or parts approved by Viessmann.
Safety instructions
Safety instructions (cont.)
6221465
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