Salicru SLC ADAPT2 Series User Manual page 24

This control will be more rigorous, exhaustive and appro-
priate to the circumstances, when there may be a dusty
environment with conductive materials in suspension.
The modules are equipped with three internal speed-
ˆ
regulated fans. The air flow is channelled from the front
to the rear. Do not block the ventilation holes or ob-
struct the air circulation.
The modules can be fully integrated into a rack cabinet
since they have no ventilation grilles on their sides.
To allow comfortable operation of personnel, it is rec-
ˆ
ommended to leave a free space on the front of 1 m
that allows loosely open the door of a rack cabinet and
facilitate the operations of removal or installation of
additional modules.
It is necessary to leave a minimum of 50 cm in the back
for free circulation of ventilation air pushed by the fans.
When the conditions of the room are extreme, it will be
ˆ
necessary to install an external ventilation system to
force the cooling air flow.
The acoustic level of the ventilation system is high and
ˆ
invalidates the device to install it in the same room
where office personnel work.
Only intended for mounting on cement or other non-
ˆ
combustible surface.
For the battery cabinets supplied by our brand, the bat-
ˆ
tery trays are extracted frontally. Leave a free space on
the front of 1 m for the installation of accumulators and
preventive maintenance.
In general comply with all the conditions indicated in
ˆ
the safety instructions (document EK266*08).
5.2.2. Room for the batteries.
The batteries generate quantity of hydrogen and oxygen
•
during the charging process, reason why it is indispensable
condition to have a good air circulation of the room.
The stability and ambient temperature of the room where
•
the battery is located is an important factor that determines
the capacity to store the energy during the chemical pro-
cess that occurs during charging. In the same way, these
factors influence the reverse chemical process that occurs
in the discharge in the event of an energy demand and that
they have a significant effect on shortening the useful life
of the same.
The nominal operating temperature of a battery is 20°C.
Operating above this temperature will reduce its duration
or life and operating below it will reduce its storage ca-
pacity. If the average operating temperature of the battery
increases from 20°C to 30°C, the service life will be re-
duced by 50%. If the operating temperature exceeds 40°C,
the service life will be reduced exponentially.
In a normal installation, the battery temperature is main-
tained between 15 and 25°C. Keep batteries away from
heat sources or air intakes.
When external batteries are used, the protections (fuses or
•
circuit breakers) should be fitted as close as possible to the
accumulators, and their connecting cables, between them
and the UPS, should be as short as possible.
24
5.3. ENTRY FOR THE CONNECTION CABLES.
The 2 and 4-slot cabinets have a cable gland in the terminal
•
protection cover and an elliptical hole behind a metal part
that serves as a cover. Either of these is valid for the routing
of connection cables as they prevent the entry of foreign
materials and insects into the enclosure, although the cable
glands are more suitable since they perform the additional
function of retaining the cables to protect them against for-
tuitous or accidental pulling (see ).
Cable entry through the back cover.
Cable entry through the base.
Fig. 22. Cable entry on 2 and/or 4-slot cabinets.
SALICRU