Service; Replacement Procedures Of Power Module; Replacement Procedures Of Air Filter - PROLiNK Master III Series User Manual

7. SERVICE

This chapter introduces the UPS service, including the service procedures of the power module, and the
replacement of air filter.
Warning:
1. Only the customer service engineers can service the power modules
2. The static transfer switch (STS) is NOT hot pluggable. It should be replaced only when the UPS is in
maintenance bypass mode or completely powered off.

7-1 Replacement Procedures Of Power Module

Warning:
l Confirm UPS is in Line mode or Bypass mode.
l
Confirm at least one Power Module remains in the UPS cabinet after one Power Module is removed
l If all power modules have to be removed, the replacement MUST be under Maintenance Bypass Operation
Mode.
1. The Power Module FAULT LED (RED) indicator is lit to indicate the Power Module output is off and
disconnected from UPS system.
2. Use a screwdriver to remove the screws from fixing holes.
3. Two people pull out together and remove the Power Module from its slot.
4. After servicing the module, confirm that the DIP switch of the module is set correctly Push the module into the
cabinet and tighten the screws on both sides.
5. The re-installed Power Module will be turned on automatically when UPS is in line mode.

7-2 Replacement Procedures Of Air Filter

As shown below, the UPS provides four air filters on the back of the front door. Each filter is fixed by a fixing bar
on both sides.
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