Maintenance, Service And Faults - PROLiNK PROFESSIONAL I Series User Manual

1-5. Maintenance, service and faults

The UPS system operates with hazardous voltages. Repairs may be carried out only by

qualified maintenance personnel.
Caution - risk of electric shock. Even after the unit is disconnected from the mains

(building wiring outlet), components inside the UPS system are still connected to the
battery and electrically live and 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.
Caution - risk of electric shock. The battery circuit is not isolated from the input

voltage. Hazardous voltages may occur between the battery terminals and the ground.
Before touching, please verify that no voltage is present!
Batteries may cause electric shock and have a high short-circuit current. Please take

the precautionary measures specified below and any other measures necessary when
working with batteries:
－remove wristwatches, rings and other metal objects
－use only tools with insulated grips and handles.
When changing 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.
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 dismantle the UPS system.

WARNING: This is a category C2 UPS product. In a residential environment, this

product may cause radio interference, in which case the user many be required to take
additional measures. (only for 220/230/240 VAC system)
Only for 110/120 VAC system:
NOTE: This equipment has been tested and found to comply with the limits for a Class

A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his own expense.
WARNING: Changes or modifications not expressly approved by the party responsible

for compliance could void the user's authority to operate the equipment.
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