Xtreme X90-2S, User & Installation Manual

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7. Service
This chapter is about servicing the UPS, including the service procedures of the power module,
control module and the replacement of air filter.
Warning:
1. Only authorized service personnel can service the power modules and battery modules.
2. Remove the power modules and battery modules from top to bottom to prevent the cabinet from
toppling due to high center of gravity.
7.1 Procedure Of Replacing a Power Module
Warning:
⚫
Make sure that UPS is in Line mode or Bypass mode.
⚫
Make sure that at least one Power Module remains in the UPS cabinet after a Power Module is
removed.
⚫
If all power modules must be removed, the replacement MUST be performed in Maintenance
Bypass Operation Mode.
1. Turn ready switch to “ ” position.
2. The Power Module FAULT LED (RED) indicator is lit to indicate that the Power Module has turned
off its output and been disconnected from UPS system.
3. Use a screwdriver to remove the four screws from fixing holes.
4. Two people pull the Power Module out together and remove it from its slot.
5. After servicing the module, make sure that the DIP switch of the module is set correctly and
that the ready switch is at
“ ” position.
6. Push the module into the cabinet and tighten the screws on both sides into the fixing holes.
Turn ready switch to
“ ” position.
7. If the UPS has been in line mode, it will turn on the inverter of the re-installed Power Module
automatically.
7.2 Procedure Of Replacing the Air Filter
As shown below, there are four air filters on the back of the UPS front door. They are secured to the
front door by the four fixing bars.