Safety Instructions - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

Safety instructions

Safety instructions
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!
Please note
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
& Work on electrical equipment must
only be carried out by a qualified
electrician.
& The system must be commissioned
by the system installer or a qualified
person authorised by the installer.
Regulations
Observe the following when working
on this system
& all legal instructions regarding the
prevention of accidents,
& all legal instructions regarding
environmental protection,
& the Code of Practice of relevant
trade associations.
& all current safety regulations as
defined by DIN, EN, DVGW, VDE
and all locally applicable standards
2
Working on the system
& Isolate the system from the power
supply and check that it is no longer
'live', e.g. by removing a separate
fuse or by means of a main isolator.
& Safeguard the system against
unauthorised reconnection.
!
Please note
Electronic modules can be
damaged by electrostatic dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!
Please note
Repairing components that ful-
fil a safety function can com-
promise the safe operation of
your heating system.
Replace faulty components
only with original Viessmann
spare parts.