Liebert Precision Cooling System DS - Manual (Page 54)

Disassembling the Liebert DS for Transport
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19. Cut the insulation and pull it back from the piping.
20. Cut the refrigerant piping with a tubing cutter; if there is no Schrader fitting, let the nitrogen
bleed out before cutting all the way through the pipe.
21. Unsweat or cut all copper water pipes that interconnect unit sections.
22. Immediately cap and seal all piping that has been cut, including the suction and liquid lines, as
well as the fluid piping on GLYCOOL and dual-cool units.
6.2.1 Remove the Compressor Assembly
1. Secure the compressor wire harness to the compressor assembly.
2. Remove the 10 thread-cutting bolts holding the compressor section assembly to the filter and
electric box assembly and the blower and coil assembly.
There are five bolts in the front, four in the back and one on the top at the middle of the unit.
a. Begin removing bolts at the bottom of the unit and progress toward the top. Use this method
for the front and back bolts.
b. Stabilize the compressor section before removing the top, middle bolt.
NOTICE
The compressor section is top-heavy and has a small base. It must remain upright. Do not lay
the compressor section on its side during or after removing it from the Liebert DS. Do not
remove shipping blocks from semi-hermetic compressors until the Liebert DS is fully
reassembled and ready for installation.
6.2.2 Remove the Filter and Electric Box Assembly
1. Using a stepladder to reach the top of the Liebert DS, remove the filter support plate; it is
attached to the filter and electric box assembly with two screws, one on each end.
2. Remove tags from the Schrader fittings on top of the coil headers. Retain the tags for replacement
during reassembly.
3. Remove 16 screws, (8) on each side, from the evaporator top cover plate to coil assembly. Coil top
blocker will remain with top section for rigidity.
4. Remove coil access plates from the left side of the Liebert DS.
5. Remove the four thread-cutting bolts securing the filter and electric box assembly to the blower
and coil assembly. There are two on the left and two on the right.
6. Separate the unit sections with caution.
NOTICE
Risk of improper handling.
• The filter and electric box section should be moved forward and set on the floor.
• Make sure to lift the coil plate over the Schrader fittings on the headers. Emerson
recommends using four people to remove this section. Special care is required when moving
this section because the legs are not designed to withstand strong shocks.
• The blower and coil assembly must remain upright. The coil is not secured to the blower
and coil assembly.
• Secure the coil to the bottom section with straps or a similar method before moving the
section.
7. Move each section of the Liebert DS to the installation location.
NOTE
Emerson does not recommend unsweating refrigerant connections.
NOTE
Emerson recommends using piano jacks when moving this section.