Tecnoware EVO DSP TM, User Manual

Page: 32 / 44

User’s Manual 30 UPS EVO DSP TT
9 Maintenance
Batteries, fans and capacitors shall be replaced at the end of their lives.
Hazardous voltage and high temperature metal parts inside even if the UPS is
disconnected. Contact may cause electric shock and burns. All operations except
replacing Battery fuses shall be carried out by the authorized technical personnel only.
Some parts inside the UPS (terminals, EMC filters and measurement circuits) are still
energized during maintenance Bypass operation. In order to isolate all UPS parts, circuit
breakers on mains and Bypass mains distribution panels feeding the UPS and circuit
breakers on external battery cabinet shall be brought to “OFF/0” position. Internal
batteries shall also be isolated from the system.
9.1 Battery Fuses
Bringing the Battery circuit breaker (F5) to “ON”/“1” position before seeing “NORMAL” message on
the LCD may cause Battery fuses to blow out.
Battery fuses shall only be replaced with Gould 22x58 AR 660V ultra fast fuse of same
rating or equivalent.
9.2 Battery
Battery life strongly depends on the ambient temperature. There are also other factors like the
number of charge-discharge cycles and discharge depth.
Battery life is between 3-10 years if the ambient temperature is between 10 – 20
°
C. Performing
Battery Test can provide you with information about battery condition. (See “Battery Test” section for
more information on Battery Test)
Danger of explosion and fire if the batteries of the wrong type or number are used.
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.
9.3 Fans
The life of fans used to cool the power circuits depends on the usage and environmental conditions.
Preventive replacement by authorized technical personnel every four years is recommended.
9.4 Capacitors
The life of the electrolytic capacitors on the DC bus and the capacitors used for output and input
filtering purposes depends on the usage and environmental conditions.
Preventive replacement by authorized technical personnel every five years is recommended.