Key to symbols and safety
1.1 Key to symbols
Warnings in this document
are identified by a warning
triangle printed against a
Keywords at the start of a
warning indicate the type
and seriousness of the
ensuing risk if measures to
prevent the risk are not
The following keywords are defined and
can be used in this document:
• NOTICE indicates a situation that
could result in damage to property or
• CAUTION indicates a situation that
could result in minor to medium
• WARNING indicates a situation that
could result in severe injury or death.
• DANGER indicates a situation that
will result in severe injury or death.
Tronic – 6 720 816 255 (2018/06)
Key to symbols and safety instructions
This symbol indicates
where there is no risk to
people or property.
Step in an action sequence
Cross-reference to another part
of the document
List entry (second level)
1.2 Security measures
▶ Installation must only be carried out
by an authorised service.
▶ IEC 60364-7-701 must be observed
when installing the appliance and or
▶ The appliance must be installed in a
room free from the risk of frost.
▶ First connect the appliance
hydraulically and fill with water, then
connect the power supply.
▶ During the installation isolate the
appliance from the power supply.