
System Description
5
1.4 Liebert XDP—Pumping Unit
The XDP isolates the building’s chilled water circuit from the XD Coolant circuit. The XDP circulates
coolant to XDV or XDO modules while preventing condensation by maintaining the coolant’s temper-
ature above the dew point.The XDP 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 7 XDP pumping unit
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