Vertiv | Liebert XDH | User Manual
5
Pre-Installation
Chapter 2: Pre-Installation
XDH precision air conditioner is a distinctly engineered equipment which requires preliminary preparation
before installation. This chapter provides the pre-installation details, including how to prepare the installation
environment, space and reserve the maintenance area. It also gives the air conditioner operational and storage
environment requirements, followed with the procedure to unpack the unit and placement strategies.
• Strict adherence to the installation procedure is mandatory to ensure that the air conditioner unit is
installed properly.
2.1.Equipment Room Requirements
•
Before installation, the equipment room must be prepared to ensure a smooth operating flow and to achieve
the expected results. The data center must meet the standards, to obtain proper heating and ventilation.
The design specifications for the air conditioners must be ideal and should be in-line with the energy-
efficient design standards.
• To ensure the normal operation of environment control system, the room should be moisture-proof and the
equipment room should have a sealed damp-proof layer. Polyethylene film should be used for the damp-
proof layer of the ceiling and walls. Alternatively, the same effect similar to polyethylene can be simulated
with moisture-proof paint. It is important to ensure that the coating on the concrete wall and floor is damp-
proof.
• The equipment room should be free of air leakage, reduced to a minimum because outdoor air can increase
the system load and de-stabilize the temperature gradient. It is recommended that the leakage rate of
outdoor air should be kept below 5% of the total indoor airflow.
•
To avoid any outside air infiltration into the room, all the doors and windows should be properly closed.
•
Avoid locating the indoor unit in concave or narrow areas which can affect the airflow. It is prohibited to
use the XDH precision air conditioner in an unconducive outdoor environment.
•
Vertiv recommends that the site preparation is defined as per the requirements. However, if these
requirements are not met, Vertiv recommends that rectifications should be made on the site in order to
comply with the specified requirements and conditions.
•
However, if the rectifications or modifications are not implemented, then Vertiv does not guarantee the
accuracy and precision of the temperature and humidity provided by the unit.
