User`s manual

ENGLISH
User’s manual 24 UPS EVO DSP MM Rack Tower
12 Maintenance
12.1 UPS Cleaning
Before starting any cleaning operation, be sure that:
1. The AC Input Voltage for the UPS has been removed.
2. The UPS is completely OFF (the graphic LCD panel is OFF).
Use only a cloth dampened with water to clean the unit.
If UPS works in an environmental unusually dusty or dirty, remove the dirty from the ventilation holes.
Before restarting the UPS be sure it is completely dry. If any liquid gets inside the UPS, do not start the unit and
contact Technical Service immediately.
12.2 Battery
If the UPS is NOT going to be used for a long period of time, ensure that the batteries are left fully charged.
If the UPS has not been used for more than three months, go through the procedure described in the chapter 7
“First Start Up” before using it again.
Please keep in mind that the batteries must be recharged at least once a month. Take in mind that batteries are
recharged automatically (if the UPS is ON and working in Normal or in Bypass mode) for after approximately 4
hours with AC Input line present.
Battery life strongly depends on the ambient temperature. There are also other factors like the number of charge-
discharge cycles, the discharge depth, humidity and altitude.
The recommended environmental specifications for a correct use of batteries are listed in the “Technical
Specifications” section.
Performing Battery Test can provide you with information about Battery condition (see “Battery Test” section for
more information on Battery Test).
Danger of explosion and fire if batteries of the wrong type or number are used.
Do not dispose of batteries in a fire. The batteries may explode. Do not open or mutilate
batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.