Vertiv Liebert XDU 060, Installer/User Manual

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Component
Maintenance Period
Monthly By
User
Every
3 Months
Every
6 Months
Annually
Pumps
Check for irregular noise from the
pumps.
X
Check for leaks of the pump casing
and seals.
X
Check motor mounts for tightness. X
Table 10.1 Maintenance Schedule (continued)
10.5 Fan Replacement
10.5.1 Replacing a Fan in 600-mm (24-Inch) Models
WARNING! Risk of contact with high speed rotating fan blades. Can cause serious injury or death. Open all
local and remote electric power supply disconnect switches, verify with a voltmeter that power is off, and
verify that all fan blades have stopped rotating before working in the unit cabinet or on the fan assembly. If
control voltage is applied, the fan motor can restart without warning after a power failure. Do not operate the
unit with any or all cabinet panels removed.
To replace the fan:
1. Shut off all power to the unit by opening the main disconnect switch on the electrical panel on the front of the
Liebert® XDU.
2. Remove the lower front panel.
3. Open the panel assembly that contains the fans, using the quarter-turn latches.
4. Disconnect the fan’s power connections in the electrical junction box.
5. Remove the fan frame assembly by removing the four bolts from the corner braces at each corner.
6. Set the fan assembly in a work area.
7. Remove the four bolts that attach the fan to be replaced to the frame assembly.
8. Reverse the steps to install the replacement fan.
Refer to Figure 10.1 on the next page for the fan-assembly components.
10 Maintenance
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