Vertiv | Liebert XDH | User Manual
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Mechanical Installation (Site Preparation)
3.5.3.Leakage Detecting by Nitrogen
The pressure of nitrogen charged shall be more than 20 bar. The nitrogen shall be kept for more than 12hrs,
before and after which the pressure should be the same. The pressure gauge is connected to the Schrader
valve at the outlet of the refrigerant pump as shown in the
Figure 3-18 Location of the Schrader Valve
3.6.Installation Checklist
Initiate the inspection checks after the mechanical installation is completed. Pre-check and confirm that
there are no discrepancies or faults. Ensure that all the points in the checklist (refer
for installation
checklist) are complying accordingly.
Table 3-4 Installation Checklist
Items
Results
Sufficient space for maintenance activities at site.
The equipment is installed vertically and the installation fasteners have been fixed.
The connecting pipe between the XDP and XDH units is installed and the ball valve at the
XDH unit side has been fully opened.
The airflow direction of the air baffles have been adjusted (if necessary).
The condensate drain pipe is connected.
All pipe joints tightened.
All pipe connectors and fasteners are tightly fastened.
All connected copper and water pipes shall be insulated properly.
Irrelevant things (such as transportation material, structure material, and tools)
inside or around the equipment have been cleared after the equipment is installed.
After all the items are checked and confirmed, perform the electrical installation operation.
