Xtreme Power Conversion Corporation
P90L 1500–3000 User’s Manual
Page 30
Uninterruptible Power Supply
Storage And Maintenance
Storage
Before storing, charge the UPS at least 5 hours. Store the UPS covered and upright in a cool, dry location. During
storage, recharge the battery in accordance with the following table:
Storage Temperature
Recharge Frequency
Charging Duration
-25°C - 40°C
Every 3 months
1-2 hours
40°C - 45°C
Every 2 months
1-2 hours
Maintenance
T
he UPS system operates with hazardous voltages. Repairs may be carried out only by qualified mainte
-
nance personnel.
Even after the unit is disconnected from the mains, components inside the UPS system are still connected
to the battery packs which are potentially dangerous.
Before carrying out any kind of service and/or maintenance, disconnect the batteries and verify that no
current is present and no hazardous voltage exists in the terminals of high capability capacitor such as BUS-
capacitors.
Only person who are adequately familiar with batteries and with the required precautionary measures may
replace batteries and supervise operations. Unauthorized persons must be kept away from the batteries.
Verify that no voltage between the battery terminals and the ground is present before maintenance or re
-
pair. In this product, the battery circuit is not isolated from the input voltage. Hazardous voltages may occur
between the battery terminals and the ground.
Batteries may cause electric shock and have a high short-circuit current. Please remove all watches, rings
and other metal personal objects before maintenance or repair, and only use tools with insulated grips and
handles for maintaining or repairing.
When replacing the batteries, install the same number and same type of batteries.
Do not attempt to dispose of batteries by burning them. This could cause battery explosion.
The batteries must be properly disposed of according to local regulation.
Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes. It may be toxic.
Please replace the fuse only with the same type and amperage in order to avoid fire hazards.
Do not disassemble the UPS system. The UPS contains no user-serviceable parts.
Batteries
The life of batteries used in these UPS products is estimated at 3-6 years depending on level of usage. Once the
battery is no longer useful and must be replaced, please contact service personnel for assistance.
