28
50 cm.
UPS battery
cabinet no 1
UPS battery
cabinet no 2
UPS cabinet
no 1
UPS cabinet
no 2
UPS cabinet
no 3
UPS cabinet
no 4
UPS battery
cabinet no 3
UPS battery
cabinet no 4
25 cm.
150 cm.
10 cm.
25 cm.
50 cm.
50 cm.
50 cm.
25 cm.
10 cm. 25 cm.
Fig. 25.
Floor view with minimum distances for a parallel system.
5.1.4.3. Equipment immobilized and levelled.
• All UPSs
and battery mo
dules with casters, have 4 stabilizer
elements
(PB)
, arranged next to each caster.
• The purpose of the stabilizers elements
(PB)
is to lay,
immobilize and level the metallic cabinet once it is located, in
order to avoid possible overturns, in particular with those whose
battery shelves can be extracted.
Warning!
Danger of turning over when extracting the
battery shelves without stabilizing the unit in advance. Do
not extract more than one shelf at the same time, or
high risk of serious injuries to the operators may cause
the possible impact of falling and/or trapping of the
equipment.
• Loosen the elements
(PB)
by turning them counterclockwise as
high as it is off the floor with the help of a spanner, and loosen
them more than half turn in order to immobilize the metallic
cabinet with a correct levelling.
Fig. 31 shows where the stabilizers elements
(PB)
have to
be finally fixed.
• To have access to the battery shelves, cabinet side covers have
to be removed and they have to be unblocked. Shelves can be
extracted through both sides and each one has a stopper.
5.1.4.4. Preliminary considerations before connecting.
• The
description of this manual refers to the connection of terminals
and switching maneuvering that is only available in some versions
or equipment with extended back-up time. Ignore those
operations if the unit does not have them.
• Follow and respect the instructions described in this section
referred to the installation of a single equipment or parallel system.
• Switchgear or external manual bypass panel boards:
It is advisable to have an external manual bypass panel
board equipped with input, output, static bypass (
UPS-B
version only) and manual bypass protections, in single
installations.
For parallel systems up to two units, it
is very advisable
having a switchgear panel board and for systems with 3 or
4 equipment,
it is essential
. Switches of the panel board
have to allow isolating the UPS from the system against any
wrong operation and feed the loads with the rest ones,
either during the preventive maintenance period or the
reparation of itself.
• Upon request an external manual bypass panel board for a
single equipment or parallel system can be sup
plied.
Original position from factory
of the element
(PB)
.
Element
(PB)
tighten
against the floor.
•
If it requires more detailed information for particular
system configuration, ask for the relating information in
«Recommended installation». It shows the circuit diagram,
as well as the protection size and minimum cross section
of the wires that are connected to the equipment, taking
into account the nominal operating voltage. All figures are
calculated for a
maximum total cable length of 30 m
between the distribution panel board, equipment and loads.
Fig. 26.
Equipment / battery module stabilizers elements
(PB)
.
• Equipment maintenance and battery handling is a reserved task
to the
S.T.S.
or authorized staff.
If for any reason, the battery sliding shelves are in use or any
intervention, it is essential to pay attention and respect the
indications of the label stuck in each shelf, before extracting
them (see Fig. 26).
For longer lengths correct the cross sections accordingly, in
order to avoid dropping voltages, by respecting the Regulations
or norms corresponding to the country.
For each setting in manual and the information is available for
«N» units in parallel, as well as the features in «Backfee
d
protection».
