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CHECKING INSTALLATION:
NOTE:
the setting of the battery cabinet breaker trip current will depend on the size of UPS installed.
If the Battery Cabinet is supplied by Riello UPS, make sure to have set the correct thermal trip current for the given UPS
size (refer to Battery Cabinet manual).
During maintenance operations the Battery Cabinet breaker must be open in order to isolate it from the UPS.
Close all the Battery Cabinet breakers.
Carry out the UPS power-on procedure described in the USER MANUAL.
Once the UPS is started, check that the UPS is working properly: simulate a black-out by opening the SWIN input disconnect
switch of the UPS. The load must continue to be powered, the status light must change to orange and the buzzer will beep
at regular intervals. When the SWIN (input disconnect switch) is closed again, the UPS must return to normal operation from
the mains supply within a few seconds.
NON-STANDARD BATTERIES:
When batteries other than a matching battery cabinet are used, a remote DC-rated disconnect switch with overcurrent protection is
required by the National Electrical Code. Contact Riello UPS for more information about correct protection sizing.
In any case, please read all the documentation provided by the supplier and carefully check the compatibility with the UPS (voltage,
number of poles, polarity etc.).
B
ATTERY ROOM VENTILATION
The room where the Battery Cabinet is located must have sufficient ventilation to ensure the concentration of hydrogen
produced is within safe limits.
The room should preferably be ventilated naturally; if it cannot be, forced ventilation may be employed.
Standard EN 50272-2 regarding air exchange provides that the minimum aperture must satisfy the following equation:
A = 28 x Q = 28 x 0.05 x n x Igas x C10 (1/10³) [cm²] where:
A
= area of opening [cm²]
Q
= airflow required [m³/h]
n
= number of battery cells;
C10 = battery capacity in 10 hours [Ah]
Igas = gas producing current [mA/Ah]
according to the standard:
Igas = 1 in backup charging for VRLA type batteries
Igas = 8 in fast charging for VRLA type batteries
S
ETTING THE RATED BATTERY CAPACITY
–
S
OFTWARE CONFIGURATION
Having installed one or more BATTERY CABINETS, the UPS must be configured to the correct rated capacity value.
To perform this operation, use the dedicated configuration software (reserved to service personnel only).
E
XTERNAL BATTERY TEMPERATURE PROBE
An optional temperature probe kit provides the Sentryum UPS with the ability to monitor the temperature within a separate Battery
Cabinet via the connector located on the power terminal area, identified as “EXT T_BATT” (refer to the “Connection detail” paragraph
of the installation manual for further information).
This
non-isolated
input can be used also to adjust the battery voltage in accordance with the ambient temperature (temperature
compensation) this feature must be enabled and configured via the configuration software (reserved to service personnel only).
When the probe is configured, the Ext-Bat value will be shown on the “Sensor status” page.
It is essential that only the kit provided by the manufacturer or the probe already installed in the matching battery cabinet
is used. The use of a temperature probe that does not comply with the specifications may cause faults or failure of the
equipment. Only authorized personnel can install and activate the temperature probe.
The kit enables the connection of a temperature probe for a Battery Cabinet placed adjacent to the UPS. If this distance
is insufficient then it is possible to extend it up to 25 meters.
To install the External Battery Temperature probe within the Battery Cabinet, refer to the manual provided with the kit.
F
OUR SWITCH VERSION
THE
SW
(FOUR SWITCH) VERSION OF THE S3U SERIES IS ENDOWED WITH OUTPUT SWITCH AND MANUAL BYPASS
BREAKER AS WELL AS SEPARATED BYPASS INPUT AND MAINS INPUT LINES.
The S3U SW UPS models, through the separate bypass, ensure a separate connection between the input and bypass lines.
Also, thanks to the integrated output and manual bypass switch, enable the user to perform some basic maintenance operations on
the UPS without un-powering the load and without the need of an external maintenance bypass.
