6
3.
Safety instructions
Depressurize the system before carrying out any work on the piping.
Installation and maintenance work may only be carried out when the device is not under
pressure.
Installation and maintenance work may only be carried out by trained and experienced
personnel.
Installation and maintenance work may only be carried out when electrical power supply is
disconnected.
Electrical work must always be carried out by qualified electrician.
Do not exceed maximal operating pressure or operating temperature range (see data label).
Do not use the device in hazardous areas with potentially explosive atmospheres.
Use original spare parts only.
Use the device for the appropriate purpose only.
3.1
Hazardes classes
Important instructions regarding personal protection and safe operation are indicated in the manual
in distinct hazard classes. The hazard classes explain how states or individual steps of an operation
sequence are dangerous and can cause damage.
Hazard class
Description
DANGER
Indication of an immediate imminent danger. If the warning is not observed, this
will result in death or serious injuries.
WARMING
Indication of a potentially dangerous situation. If the warning is not observed, this
can result in death or serious injuries.
CAUTION
Indication of a potentially dangerous situation. If the warning is not observed, this
can result in minor injuries.
NOTICE
Indicate of a potentially dangerous situation. If the waning is not observed, this can
result in material damage.
3.2
Structure of the warning
The warnings describe the type and source of danger, the consequences of not heeding these
warnings, and measures to be taken to avert danger. A warning is always structured according to the
following pattern:
Type and source of danger.
Consequences of not heeding the warning.
Measures for averting the danger.