Chapter 2 Mechanical Installation 31
4. Hold the handle of the winch firmly, and then turn the handle counter-clockwise to lower the fan.
After the fan is sunk, the status is shown in Figure 2-33.
Fan installation top cover
Unit base pallet
Gaskets III
Washers III
Figure 2-33 Lowering the fan
5. Install the fixing bolts and washers III (see Figure 2-33, totally 4 pcs) of the fan.
6. Remove the hook from the L shaped lifting component, turn the handle clockwise, tidy the sling and remove the
fixing bolts and washers IV (see Figure 2-31, totally 4 pcs) of the winch bracket, and take out the winch and the bracket
assembly.
7. Remove the fixing bolts and washers II (see Figure 2-31, totally 2 pcs) of the L shaped lifting component, and take
out the L shaped lifting component.
At this point, the operation of lowering the fan of one-bay unit is completed.
For the two-bay unit and three-bay unit, you should also lower other fans using the fan elevator assembly. The detailed
procedures are given as follows:
1. Install the fixing bolts and washers II (see Figure 2-31, totally 2 pcs) to fix the L shaped lifting component and the fan
installation top cover.
2. Install the fixing bolts and washers IV (see Figure 2-31, totally 4 pcs) to fix the winch and its bracket onto the unit
beams.
3. Repeat the step 1 to step 7 of the one-bay unit to lower all fans.
4. After lowering all fans, tidy the fan cables and fix them using a cable tie.
2.7.2 Removing Transport Fastener And Vibration Absorber
To protect partial components from damaging and distorting due to bumping, impact and resonation, fasteners and
vibration absorbers are mounted at certain locations before delivery. Remove the fasteners and vibration absorbers
before installation and commissioning.
Removing transportation fixing plate of compressor
To reduce the compressor operation vibration and noise, the vibration absorbing cushions are added to the
compressor base. However, such method cannot best restrain the equipment vibration during transportation, and may
result in loosened connections and wearing of certain parts. To prevent this, three L shaped fixing plates are added to
the compressor base, as shown in Figure 2-34.
Liebert.PEX2 Series Air Conditioner User Manual
Summary of Contents for Liebert PEX Series
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