42 Chapter 10 Maintenance & Spare Parts
Liebert.CRV Series Air Conditioner User Manual
Figure 10-1 Security switches of the fans
To extract the filters, push up the upper one and rotate it. Then move the other one up and repeat as before, as
shown in Figure 10-2.
Figure 10-2 Extract the filters
After cleaning or replacing the filter, before reassembly, check that the position of air differential pressure switch pipes
(clogged filter alarm) would be in right position and in right order.
Check also that the drain trays would be clean and the pipe fix. The air differential pressure switch pipes and
condensate drain pipe are shown in Figure 10-3.
Figure 10-3 Air differential pressure switch pipes and condensate drain pipe
Before re-start the unit, be sure that micro-switches are properly closed. Otherwise the unit maintains a safety status.
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