Figure 97 Remove The Air Filters; Figure 98 Differential Pressure Switch Tubes - Emerson Liebert CRV User Manual

To extract the filters (refer to Figure 97:
1. Push up the upper filter.
2. Pull the bottom of the filter away from the Liebert CRV.
3. Pull it out of the unit.
4. Lift the lower filter up
5. Pull the bottom of the filter away from the Liebert CRV.
6. Pull it out of the unit.

Figure 97 Remove the air filters

Upper Filter
Push the upper filter up, pull the
bottom away from the Liebert CRV and
lift it out of the unit
After cleaning or replacing the filter and before reassembling the unit, check that the air differential
pressure switch pipes (clogged filter alarm) are in the correct position and order. Check also that the
drain trays are clean and the pipe secure.

Figure 98 Differential pressure switch tubes

Before restarting the unit, be sure that the microswitches are properly closed; otherwise, the unit
remains in safety status.
® ™
Liebert CRV
Slide the lower filter up beyond the support
bar and lift it out of the Liebert CRV the
same way as the upper filter
Differential
pressure
switch tube
Lower Filter
110
Maintenance
Support Bar