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PREVENTIVE MAINTENANCE
I
NTRODUCTION
Our UPS are designed and produced for long life even under the severest operating conditions. Remember however that they are
electrical power equipment items and as such are in need of periodic checks. Besides, some components have a life cycle of their
own and must therefore be checked at regular intervals and may need to be replaced, due to the conditions; in particular: the batteries,
the fans and the dust-proof filter.
It's very important to check the requirements and the suggestions for the installation environment given in the “Installation manual”.
Moreover, it is recommended to implement a preventive maintenance program, using the manufacturer authorized and trained service
personnel.
During the Maintenance all the electronics and the mechanicals parts will be controlled. This will improve the reliability, maintain the
UPS efficiency to the maximum level and to extend the lifespan.
The product safety preservation over the time is ensured with a preventive and regular maintenance program on the UPS.
Only the authorized and trained service personnel can perform any maintenance operations.
Our Technical Servicing department is at your disposal to discuss the different personalized preventive maintenance options.
B
ATTERIES
Thanks to an advanced battery care system our UPS preserve the batteries health both during charging and discharging phase. For
example an algorithm to avoid deep discharge is implemented. Anyway environmental condition and usage affect battery life. Ambient
temperature, number of blackout or outages, number of depth discharges, frequency of charge and discharge cycles are the key
factors that affect battery life. In order to avoid unexpected behavior during a mains outage, batteries should be regularly checked and
maintained by authorized service personnel.
F
ANS
The Fans fitted in this UPS are speed controlled. Ambient temperature and UPS output power affect the speed. In addition, dusty
environments can make matters worse. Preventive maintenance ensures that the cooling system is kept in perfect working order.
A
IR FILTER
The Sentryum 40, 50 and 60kVA units are endowed with a dust-proof filter located under the front door, in a separated compartment
below the display support. To open it, two knob-screws must be unscrewed at the right side.
The filter has to be frequently checked in order to verify if excessive dirt can prevent a sufficient air flow. If the case, the filter can be
cleaned with neutral soap and water and re-inserted only once perfectly dried out.
If necessary, the filter can be replaced with a suitable replacement. Ask to your vendor for this spare part.
