Vertiv EXM 0080kTK16FN01000, User Manual

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Chapter 10 Service And Maintenance 135
Liebert EXM 80kVA ~ 200kVA UPS User Manual
The UPS provides air filters on the back of the front door of the cabinet, and the user can replace the air
filter during the UPS operation.
Each air filter is fixed by a fixing bar on both sides. Refer to Figure 10-3, the following is the air filter
replacement procedures:
1. Open the front door of the UPS to reveal the air filter on the back of the front door.
2. Remove a fixing bar on one side and loosen the fixing screws of the fixing bar on the other side, with no
need to remove this fixing bar.
3. Remove the air filter to be replaced, and insert a clean one.
4. Re-install the removed fixing bar in the original place and tighten the fixing screws.
5. Tighten the fixing screws of the fixing bar on the other side.
Air filter
Figure 10-3 Replacing air filter
10.4 Maintenance Of UPS And Options
UPS and the options need common maintenance:
1. Keep good history record. Keeping good history record facilitates failure treatment.
2. Keep clean, so as to prevent UPS from the invasion of dust and moisture.
3. Maintain appropriate ambient temperature. The most appropriate temperature for battery is 20°C to
25°C. Too low temperature will reduce the battery capacity and too high temperature will reduce the
battery life.
4. Check the wiring. Check the tightening of all connected screws, and there should be routine tightening
at least once a year.
5. Check regularly if there is any abnormity in the superior or subordinate switch to ensure cutting off the
import or export when the current is too large. Maintenance staff should be familiar with the typical