3. Positionthe lifting device so that it lines-up withthe EC-fan assembly.
NOTE: A minimum clearance of 36 in. (914mm) from the bottom of the unit to the topof the plenum is
required for component access.
4. Using the handleson the EC-fan assembly, carefully lift the assembly over the hinge along the top of the unit,
and slide the assembly onto the lifting device, Figure 11.8 below.
5. Use the lifting device to lower the EC-fanassembly for transport to service or maintenance area.
Figure 11.8 EC-fan assembly moved onto lifting device
10.3 Blower Drive System—Forward-curved Blowers
Periodic checks of the blower package include the belt, motor mounts, fanbearings and impellers.
The units are manufactured withfactory-supplied, adjustable motor sheaves. Due tovariations inapplication, youmay want
tosubstitute a fixed motor pulley for the adjustable sheave after youobtain and confirm the desired air flow. This
substitution reduces vibrationand wear on the belts and pulleys. Consult your Vertiv sales representative for more
information.
Vertiv | Liebert® CW™Installer/User Guide
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