1 About this manual
Before installing and using this unit, please read this
manual carefully. Be sure to keep it handy for later
reference.
1.1 Typographical conventions
DANGER!
High level hazard.
Risk of electric shock. Disconnect the
power supply before proceeding with any
operation, unless indicated otherwise.
CAUTION!
Medium level hazard.
This operation is very important for the
system to function properly. Please read
the procedure described very carefully and
carry it out as instructed.
INFO
Description of system specifications.
We recommend reading this part carefully
in order to understand the subsequent
stages.
2 Notes on copyright and
information on trademarks
The quoted names of products or companies are
trademarks or registered trademarks.
MNVCHPVB_1511_EN
3 Safety rules
CAUTION! The device must be installed
only and exclusively by qualified technical
personnel.
• CAUTION! The electrical system to which the unit
is connected must be equipped with a automatic
bipolar circuit breaker. The circuit breaker for main
supply voltage phase units must have a level of
intervention of 20A max. The circuit breaker for
low voltage units must have a level of intervention
of 6A max. This circuit breaker must be of the
Listed type. The minimum distance between the
contacts must be 3mm (0.1in). The circuit breaker
must be provided with protection against the fault
current towards the ground (differential) and the
overcurrent (magnetothermal).
• The manufacturer declines all responsibility
for any damage caused by an improper use
of the appliances mentioned in this manual.
Furthermore, the manufacturer reserves the right
to modify its contents without any prior notice.
The documentation contained in this manual has
been collected with great care. The manufacturer,
however, cannot take any liability for its use. The
same thing can be said for any person or company
involved in the creation and production of this
manual.
• Before starting any operation, make sure the
power supply is disconnected.
• Do not use cables that seem worn or old.
• Never, under any circumstances, make any
changes or connections that are not shown in
this handbook. Improper use of the appliance
can cause serious hazards, risking the safety of
personnel and of the installation.
• Use only original spare parts. Non-original spare
parts could cause fire, electrical discharge or other
hazards.
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