Vertiv Liebert PEX+ Series, User Manual

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Vertiv | Liebert PEX+Chilled Water | User Manual 36
Installation
2.5. Lowering the Fan
Before commissioning, the EC fans of the downflow unit must be lowered. The downflow unit is equipped with
a lowering tool when it is shipped. The lowering tool that uses winch is shown in Figure 2-26 . It mainly includes,
winch bracket, hook, sling, hand winch, handle, and a L-shaped lifting component.
No. Description No. Description
1 Winch bracket 4 Handle
2 Hook 5 Sling
3 Winch 6 L-shaped beam
Figure 2-26 Fan Elevator Assembly (Winch mode)
• Lowering Procedure
1. Installing lift and lowering kit for lowering the fan: Open the unit maintenance cover, check the fixing bolts
(refer, total two PCS) of the L-shaped lifting component to ensure that it is fixed properly, and then install the
fixing bolts (total four PCS) of the winch bracket, as shown in Figure 2-27 .
2. Turn the winch handle and use the winch hook to hook the L-shaped lifting component to the middle round
hole (refer Figure 2-28 ). Adjust the handle until the sling is completely tight.
3. Cut the cable tie that binds the fan cables to ensure that the cable length meets the fan lowering
requirements, and then remove the fixing bolts and washers (refer Figure 2-28 , total four PCS) for fan lowering.
4. Hold the winch handle firmly, and then turn the handle counterclockwise to lower the fan. The status after the
fan has been lowered is shown in Figure 2-29.