Vertiv | Liebert® CRV4 | User Manual 6
Installation
Chapter 2: Installation
Liebert® CRV4 air cooled AC unit is a row-cooling equipment which involves complex installation works. This
chapter details the installation preparation, including how to prepare the installation environment and space
and reserve the maintenance space, and how to unpack and inspect the unit. Please read this chapter carefully
before installation.
• Strict adherence to the installation procedure is mandatory to ensure that the air conditioner unit is
installed properly.
2.1. Equipment Room Consideration
The requirements on the equipment room are as follows:
• Before installation, the equipment room must be prepared to ensure a smooth operating ow and to achieve
the expected results. The data center must meet the standards, to obtain proper heating and ventilation. The
design specications for the air conditioners must be ideal and should be in-line with the energy-eicient
design standards.
• To ensure the normal operation of environment control system, the room should be moisture-proof and
Polyethylene lm should be applied for the damp-proong of the ceiling and walls. Alternatively, the same
eect similar to polyethylene can be simulated with moisture-proof paint. It is important to ensure that the
coating on the concrete wall and oor 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 airow.
• To avoid any outside air inltration into the room, all the doors and windows should be properly closed.
Do not use the indoor unit for outdoor environment.
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