Viessmann VITOCAL 150-A Operating Instructions For The System User page 3

For your safety
Keep ignition sources away, e.g. naked
■
flames, hot surfaces, electrical devices
not free of ignition sources, mobile
devices with integrated batteries (e.g.
mobile phones, fitness watches, etc.).
Do not use flammable materials, e.g.
■
sprays or other flammable gases.
Do not remove, block or bridge safety
■
equipment.
Do not make any alterations to the out-
■
door unit:
Do not change, load or damage inlet/
–
outlet lines and electrical connec-
tions/cables.
Do not change the surroundings.
–
Do not remove any components or
–
seals.
Connection of the system
The appliances may be connected and
■
commissioned only by authorised con-
tractors.
Observe the specified electrical con-
■
nection requirements.
Modifications to the existing installation
■
may only be carried out by authorised
specialists.
Danger
Incorrectly executed work on the
system can lead to life threatening
accidents.
Work on electrical equipment may
only be carried out by a qualified
electrician.
Working on the system
All adjustments and work on the sys-
■
tem must be performed as specified in
these operating instructions.
Other work on the system may only be
carried out by authorised contractors,
e.g. maintenance, service and repairs.
Do not open the appliances.
■
(cont.)
Do not remove casings.
■
Do not modify or remove attachments
■
or fitted accessories.
Do not open or tighten pipe connec-
■
tions.
Work on the refrigerant circuit of the
■
outdoor unit may only be carried out by
authorised heating contractors. These
heating contractors must be trained in
accordance with EN 378 Part 4 or
IEC 60335-2-40, Section HH. The cer-
tificate of competence from an industry
accredited body.
Danger
Hot surfaces can cause burns.
Do not open the appliance.
■
Do not touch the hot surfaces of
■
uninsulated pipes and fittings.
Auxiliary components, spare and
wearing parts
!
Please note
Components that were not tested
with the system may cause system
damage, or may affect its functions.
Have all installation or replacement
work carried out exclusively by
heating contractors.
Safety instructions
3