20 - 80 kVA parallel UPS systems
User’s and Installation Manual
1018390
Revision C
13
4.7 Maintenance
Warning!
Maintenance work must be performed only by a service person with the service training
completed.
One should sign a service and maintenance contract with an authorised local service centre.
The maintenance work for parallel UPS system can be done with the system bypass switch.
The good condition of the batteries is crucial to correct operation of the parallel UPS
system. Therefore, a battery discharge test is recommended once or twice per year in the
preventive maintenance procedure.
The UPS units are provided with the automatic battery test ABM™, which continuously
controls the condition of the battery bank. “Battery failure” alarm is activated when the
capacity of the battery bank has decreased remarkable from the default value.
Scrapping
Before scrapping UPS or its battery cabinet, battery bank and the lithium battery on the
logic board must be removed. Due to high energy and high voltage, removal of batteries is
allowed only for authorised service personnel. Local requirements must be followed in
battery recycling or discard.
WARNING!
HAZARDOUS MATERIALS. Batteries may contain HIGH VOLTAGES,
and CAUSTIC, TOXIC and FLAMMABLE substances. Batteries can injure or kill people
and damage equipment if used improperly. DO NOT DISCARD unwanted batteries or
battery material in the public waste disposal system. Follow ALL applicable, local
regulations for storage, handling and disposal of batteries and battery materials.