Emerson XDR Manual Do Utilizador

The Liebert XDR is a cooling system for high-density heat loads that mounts on the rear of a 

24" x 42U rack (for other sizes consult the factory) and maintains access to the back of the server 

rack. Room air is drawn in through the front of the rack and picks up heat from the servers. The coil 

captures that heat, cooling the air, which is expelled through the rear of the rack.
The Liebert XDR relies on the rack equipment’s fans to move air across the micro-channel coil. Cap-

tured heat is carried away through pumped R-134a refrigerant supplied by either a Liebert XDP

™

 or 

Liebert XDC

™

.

The complete cooling system may include other Liebert XD cooling modules, such as the Liebert 

XDO

™

, Liebert XDV

™

, Liebert XDH

™

, Liebert XDA

™

 or Liebert XDCF

™

 (see Figure 3) and Liebert 

XD Flex Piping.
The Liebert XDR is not expected to produce any condensation because of its location, usually in the 

data center. A condensate pan is provided as a precaution. It does not have a drain fitting or other 

means of being emptied.
Four handles to ease carrying the Liebert XDR are attached at the factory. These should be removed 

after the module is attached to the rear of the enclosure. Leaving the handles attached would require 

space between the racks. The handles should be retained for use if the Liebert XDR is removed from 

the enclosure.

Upon arrival of the module and before unpacking it, verify that the labeled equipment matches the 

bill of lading.
Inspect all items for either visible or concealed damage. Damage should be immediately reported to 

the carrier and a damage claim filed with a copy sent to Emerson or to your sales representative. If 

you later find any concealed damage, report it to both the shipping company and your local Emerson 

representative.
Check to be sure all required assemblies and parts have been received.
The Liebert XDR is shipped in protective packaging and secured to a pallet (see Figure 5). Do not 

remove these protective items from the Liebert XDR before it is at the installation location. When 

unpacking and handling the Liebert XDR, exercise extra care to prevent damage.

Supply Lines

Return Lines

* Liebert XDCF ; Liebert XDH
   Liebert XDO ; Liebert XDR
   Liebert XDV

Pumped 

Refrigerant

R134a