Figure 15 hard pipe connection diagram, 1 leak-checking and evacuation, 2 header system – Emerson Liebert XDR User Manual
Page 23: Leak-checking and evacuation, Header system
Piping
17
Figure 15 Hard pipe connection diagram
6.6.1 Leak-Checking and Evacuation
Refer to the Liebert XDC or Liebert XDP user manual for procedures for evacuation, leak check,
charging and startup.
6.6.2 Header System
The Liebert XDR module system with optional flexible piping requires use of the Liebert XD prefabri-
cated piping assembly. The prefabricated piping is compatible with the Liebert XD Flex Pipe required
to attach to the Liebert XDR modules. For the details on piping connection locations, see Figure 14.
For additional information, refer to the Liebert X-treme Density System Design Manual, SL-16655,
available at the Liebert Web
Top of
Liebert XDR
and
Equipment
Rack
Return Main
(seen from end )
2-1/8" O.D.
or 2-5/8" O.D.
Recommended Arc
Acceptable
Arc
Copper Tubing
Total length of each line
from Liebert XDR to
Main not to exceed 72"
(1829 mm)
7/8” Refrigerant -Grade
Full-Port Ball Valve
Field-Supplied and
Field-Installed
Return from
Cooling Module
Supply Main
(seen from end )
1-1/8" O.D.
or 1-3/8" O.D.
1/2” Refrigerant -Grade
Full-Port Ball Valve
Field-Supplied and
Field- Installed
Supply
to Cooling
Module
Rear of
Equipment Rack
Refer to Table 1 for details.