9.2.2 Fan Impellers
Fan impellers should be periodically inspected and any debris removed. Check to ensure that the impellers can rotate
freely.
Consult the factory for fan assembly maintenance and removal instructions. Do not attempt to service or remove the fans
without first contacting Vertiv support at 1-800-543-2778.
9.2.3 Blower Motor Lubrication
The motor is initially lubricated at the factory.
•
Contact the motor manufacturer for the lubrication interval for motor bearings.
•
Contact the motor manufacturer to determine the type of grease to use for lubrication.
9.2.4 Removing Fan Assembly
Do not attempt to remove the fan assemblies without first contacting Vertiv Technical Support at 1-800-543-2778.
9.3 Condensate Drain and Condensate Pump System Maintenance
9.3.1 Condensate Drain
Check for and clear obstructions in tubing during routine maintenance.
9.3.2 Condensate Pump
WARNING! Risk of electric shock. Can cause injury or death. Open all local and remote electric power supply
disconnect switches and verify that power is Off with a voltmeter before working within the condensate
pump electrical connection enclosure. The Liebert® iCOM™ does not isolate power from the unit, even in the
Unit Off mode. Some internal components require and receive power even during the Unit Off mode of the
Liebert® iCOM™.
To maintain the condensate pump:
1.
Disconnect power to the unit using the disconnect switch.
2.
Check for and clear obstructions in gravity lines leading to the condensate pump.
3.
Remove the sump, clean with a stiff nylon brush and flush with water.
4. Inspect and clear clogs in the discharge check valve and float mechanism.
5.
Reassemble and check for leaks.
Vertiv | Liebert® DSE Thermal Management System Installer/User Guide
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