Storage And Maintenance; Storage; Maintenance - Njoy Garun Series User Manual

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Storage and maintenance

5.1. Storage

Before storing, charge the UPS at least 7 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
-25°C - 40°C Every 3 months
40°C - 45°C Every 1 months

5.2. Maintenance

• The UPS system operates with hazardous voltages. Repairs may be carried
out only by qualified maintenance 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 persons are adequately familiar with batteries and with the required
precautionary measures may replace batteries and supervise operations.
Unauthorized persons must be kept well away from the batteries.
• Verify that no voltage between the battery terminals and the ground is
present before maintenance or repair. In this product, the battery circuit is
not isolated from the input voltage. Hazardous voltages may occur between
the battery terminals and the grounding/earthing.
• Batteries may cause electric shock and have a high short-circuit current.
Please remove all wristwatches, rings and other metal person 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.
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Charging Duration
1-2 hours
• Do not attempt to dispose of batteries by burning them. This could
cause battery explosion. The batteries must be deposed according to local
environmental regulations.
• 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.
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