Emerson Liebert DS Series, User Manual

Page: 75 / 167

Disassembling the Liebert DS for Transport
65
17. 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.
18. Unsweat or cut all copper water pipes that interconnect unit sections.
19. Immediately cap off and seal all piping that has been cut, including the suction and liquid lines,
the humidifier supply line and the condensate discharge line (if applicable), as well as fluid piping
on GLYCOOL and dual-cool units.
7.5.1 Remove Compressor Assembly
1. Secure the compressor wire harness to the compressor assembly.
2. Remove the 10 thread-cutting bolts holding compressor section together.
a. Begin removing bolts at the bottom of the Liebert DS 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 the shipping blocks from the semi-hermetic compressors until the Liebert DS is fully
reassembled and ready for installation.
7.5.2 Remove Blower and Electric Box Assembly
1. Remove the motor access plate from right end of unit.
This will provide a place to grasp the blower and electric box assembly and move it.
Remove the coil access plates on the left side of the unit for clearance when brazing the suction
and discharge lines.
2. Remove the thread-cutting bolts holding the unit sections together; there are four on the left and
four on the right.
3. Separate the unit sections with caution.
NOTICE
Risk of improper handling. May cause damage to the Liebert DS.
• The blower and electric box assembly should be moved forward and set on the floor.
• Emerson recommends using four people to remove this section.
• The motor end will be significantly heavier than the other end.
• The filter and coil assembly must remain upright. The coil is not secured to the filter and
coil assembly.
• Secure the coil to the bottom section with straps or a similar means before moving the
section.
4. 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.