Emerson Liebert Xtreme Density Specifications download pdf (Page 12)

System Description

1.5 Liebert XDC—Chiller

The XDC is an indoor chiller that connects directly to the XDO or XDV units and provides coolant cir-

culation and control. The XDC keeps the XD Coolant temperature above the dew point and eliminates

the need for a separate pumping unit in the direct system configuration. The XDC employs two sets of

remote sensors to determine the temperature and humidity in the air and instantly adjusts coolant

supply temperature to compensate for changing conditions.

Figure 8 XD Chiller unit

1.6 Liebert XD Piping

Liebert XD Piping is prefabricated distribution piping that is installed in anticipation of a growing

system. XDV cooling modules are added as required and are quickly made operational with flexible

connection piping with threaded couplings. This unique system allows the room cooling capacity to

increase to more than 500 Watt per square foot (5400 W/m2) with no additional disruptive piping

installation. The flexible connection piping also allows the cooling modules to be re-positioned without

interruption in operation.

Liebert XD Field Piping Kits

Field piping kits are available in two versions

• 10 ft. (3.05m) with five ports for connecting five XDV modules

• 8 ft. (2.44m) with two ports for connecting two XDV modules

Each version is available in two pipe sizes:

• Supply pipe: 1-1/8"; return pipe: 2-1/8"

• Supply pipe: 1-3/8"; return pipe: 2-5/8"

Each kit contains supply pipe(s) and return pipe(s). Each port has a threaded coupling at the end with

automatic shutoff when disconnected. Each port also has a ball valve for manual shutoff.

XD Connection Port Kit

The connection ports in the XD Field Piping Kits are available as XD Connection Port Kit. Each port has

a threaded coupling, with automatic shutoff when disconnected, at the end. Each port also has a ball

valve for manual shutoff. Each kit contains one supply and one return port. Two kit sizes are available:

• Supply pipe: 1-1/8"; return pipe: 2-1/8"

• Supply pipe:1-3/8"; return pipe: 2-5/8"

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Emerson Liebert Xtreme Density Specifications Page 12