Videotec ULISSE Manuel D'instructions page 10

• 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.
• Before proceeding with installation, check the
supplied material to make sure it corresponds
to the order specification by examining the
identification labels (4.2 Product markings, page
10).
• This device was designed to be permanently
installed on a building or on a suitable structure.
The device must be installed permanently before
any operation.
• Installation category (also called Overvoltage
Category) specifies the level of mains voltage
surges that the equipment will be subjected to.
The category depends upon the location of the
equipment, and on any external surge protection
provided. Equipment in an industrial environment,
directly connected to major feeders/short branch
circuits, is subjected to Installation Category III. If
this is the case, a reduction to Installation Category
II is required. This can be achieved by use of an
insulating transformer with an earthed screen
between primary and secondary, or by fitting
listed Surge Protective Devices (SPDs) from live
to neutral and from neutral to earth. Listed SPDs
shall be designed for repeated limiting of transient
voltage surges, suitable rated for operating voltage
and designated as follows: Type 2 (Permanently
connected SPDs intended for installation on the
load side of the service equipment overcurrent
device); Nominal Discharge Current (In) 20kA min.
For example: FERRAZ SHAWMUT, STT2240SPG-
CN, STT2BL240SPG-CN rated 120Vac/240Vac,
(In=20kA). Maximum distance between installation
and reduction is 5m.
8
• Use a Class 2 listed UL tranformer, compliant with
the Standards in force, only for products marked
UL, powered at 24Vac.
• A disconnecting device, readily and easily
accessible, must be incorporated in the electrical
system of the building for rapid intervention.
• The separate protective earthing terminal provided
on this product shall be permanently connected
to earth.
• Connect the device to a power source
corresponding to the indications given on the
marking label. Before proceeding with installation
make sure that the power line is properly isolated.
The supply voltage should never exceed the limit
(±10%).
• Power supply must be provided with a SELV type,
24Vac, 8A isolated source derived from a double
isolation UL Listed transformer specially protected
in output.
• The device should be mounted so that it is
accessible only to the technician/installer because
the moving parts constitute a residual risk of injury
caused by movement of said parts.
• Attach the Dangerous Moving Parts label near the
device. (Fig. 6, page 12).
• Do not use the appliance in the presence of
inflammable substances.
• To connect the power supply line use the
appropriate junction-box (UPTJBUL). For further
information, refer to the product use and
installation manual.
MNVCUPTDMB_2104_EN