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Powerware 8 - 10 kVA User Manual

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UPS 8 – 15 kVA, 230V 50/60 Hz output
User’s Guide
1022403
Revision  B1
37
Servicing of batteries should be performed or supervised by personnel knowledgeable about
batteries and required precautions. When replacing batteries, replace with the same type and
number of batteries.
Note!
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.
Cooling fan
The cooling fan lifespan of the UPS unit is about 60 000 operating hours. The actual lifespan
depends on the environment and ambient temperature.
Fan failure can be predicted by increasing noise from the fan bearings. The fan replacement is
recommended once this symptom starts appearing.
Do not use other than manufacturer’s specified spare parts.
LED Indicators
The UPS unit has (4) LEDs to indicate the status.
Table 43.
Description of the LED indicators.
Maintenance bypass switch (MBS) operation
The maintenance bypass switch may be as standard or as optional in your system depending on
the ordered configuration. The operation of the MBS is allowed for a trained person only who is
familiar with the UPS behaviour and functions. The full UPS wiring diagram with a MBS switch
is presented in the installation part of the manual.
Note!
The MBS consist of three switches and failure to understand the correct sequence may
drop the critical load.
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