Vertiv | Liebert XDH | User Manual
14
Mechanical Installation (Site Preparation)
•
One set of XD unit is configured with one XDP unit and six connections to XDH. The
&
show the configuration of one XDP and four XDH in top and bottom piping connections. These
illustrations are for reference only.
No. Description
No.
Description
1
On/ Off ball valve
5
Gaseous refrigerant dis-tributary pipe
2
Chilled water piping
6
Liquid refrigerant dis-tributary pipe
3
Gaseous refrigerant main pipe
7
On/ Off ball valve
4
Liquid refrigerant main pipe
8
Activities floor
Figure 3-3 Installation of the XDP and XDH with Bottom Piping Connections
•
In order to prevent air gaps or bubbles inside the refrigerant system, the refrigerant vapor line is
connected from the XDH (the end is tilted downwards along the direction to the XDP) to the XDP, this
connection must have a certain degree of tilt, specifically 25.4 mm to 51 mm for every 6 m distance.
•
For the liquid refrigerant and the gaseous refrigerant piping, the ball valves on the individual branched
piping are required to be installed on site. The size and specifications of the ball valves are subject to the
pipe diameters of the liquid refrigerant and gaseous refrigerant piping.
