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CHECKING INSTALLATION:
NOTE:
the size of the fuses fitted will depend on the type of Battery Cabinet installed.
If the Battery Cabinet is supplied by Riello UPS, make sure to have the correct fuse for the given UPS size (refer to
Battery Cabinet manual).
In case the Battery Cabinet isn’t supplied by the factory, please check that a DC switch is provided and that correct
fuses are installed according to Table 5. In any case, please read all the documentation provided by the supplier
and check carefully the compatibility with the UPS (voltage, number of poles, polarity etc.). Neutral wire must be
connected.
During maintenance operations the Battery Cabinet switch must be open in order to isolate it from the UPS.
Insert the right fuses (see Table 5 below) in the SWBATT fuse holders of the Battery Cabinet.
UPS (kVA) Current rating of battery protection device [A]
10 - 15 - 20
63 A 500 Vdc gR or gS
Table 5 – UPS battery protection devices
Close the SWBATT fuse holders of the Battery Cabinet and the UPS (WARNING: pay attention that
SWBATT of UPS only disconnect the batteries contained within the UPS cabinet).
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.
Battery 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
Setting the rated battery capacity – Software configuration
Having installed one or more BATTERY CABINETS, the UPS must be configured to the rated capacity value (total
Ah of batteries inside the UPS + external batteries).
To perform this operation, use the dedicated configuration software (reserved to service personnel only).
