Vertiv Liebert CW, Installer/User Manual, Page: 40 / 76

Figure 8.2 Removing and installing the air filters
Item Description
1 Remove and install filters up and down in the columns. There are 3 filters in each column.
8.2 Fan Maintenance
8.2.1 Fan Assembly Troubleshooting
Any safety hazards stemming from the device must be re-evaluated once it is installed in the end device.
Do not make any modifications, additions or conversions to the fan assembly without the approval of
Vertiv.
WARNING! Risk of electric shock. Can cause serious injury or death. Open all local and remote
electric power supply disconnect switches and verify with a voltmeter that power is off before
working within the fan-motor electric-connection enclosures. Fan-motor controls can maintain
an electric charge for 10 minutes after power is disconnected. Wait 10 minutes after power is
verified as off before working within the electric control/connection enclosures. Use only fully-
trained and qualified HVAC technicians to perform maintenance on the fans.
Vertiv | Liebert® CW™ Installer/User Guide
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