Emerson 400V Replacing Dust Filters, Bracket, Sems s crew, Redundant Fan for Power Module

Options—For Assembly Inside the UPS Cabinet

9.1.7Replacing Dust Filters

Installing the two dust filters in the Liebert NX requires only a Phillips screwdriver. Each filter is held in place by a bracket on either side of each filter. To install each filter:

1.Open the UPS door and locate the filters on the back side of the front door (see Figure 75).

2.Remove one bracket and loosen the screw on the second bracket. The second bracket need not be removed (see Figure 75).

3.Remove the dust filter to be replaced.

4.Insert the clean filter.

5.Reinstall the bracket, tightening the screw securely.

6.Tighten the screw on the second bracket.

Figure 75 Replacing the dust filters

Bracket
Sems screw	Bracket

9.1.8Redundant Fan for Power Module

In addition to the monitored fans installed in the UPS cabinet to ensure sufficient cooling power at various operation modes with 100% rated load, a redundant power module fan set can be supplied, thus ensuring continuity of UPS operation even with the failure of some fans. No extra footprint is required.

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