Viessmann VITOLIGNO 300-H Operating Instructions For The System User page 2

Safety instructions
For your safety
Please follow these safety instructions closely to prevent accidents and mate-
rial 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 envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These operating instructions are
designed for heating system users.
This appliance can also be operated by
children of 8 years and older, as well as
by individuals with reduced physical,
sensory or mental faculties or those lack-
ing in experience and knowledge, provi-
ded such individuals are being super-
vised or have been instructed in the safe
use of this appliance as well as in any
risks arising from it.
!
Please note
Supervise children in the proxim-
ity of the appliance.
■ Never permit children to play
with the appliance.
■ Cleaning and maintenance
must not be carried out by
unsupervised children.
2
Appliance connection
■ The appliance may only be connected
and commissioned by authorised con-
tractors.
■ Only operate the appliance with suita-
ble fuels.
■ Observe the specified electrical con-
nection requirements.
■ Modifications to the existing installa-
tion may only be carried out by author-
ised contractors.
Danger
Incorrectly executed work on the
heating system can lead to life
threatening accidents.
Work on electrical equipment
must only be carried out by a
qualified electrician.
Work on the appliance
■ All settings and work on the appliance
must be carried out as specified in
these operating instructions.
Further work on the appliance may
only be carried out by authorised con-
tractors.
■ Never change or remove attachments
or fitted accessories.
■ Never open or retighten pipe connec-
tions.
Danger
Hot surfaces can cause burns.
Never touch the hot surfaces
inside the appliance or those of
uninsulated pipes, fittings or flue
pipes.