Vertiv
™
| Liebert® XDO | User Manual
6
2 Mechanical Installation
This chapter introduces the mechanical installation of the Vertiv
™
Liebert® XDO unit, including computer room
requirements, maintenance space requirements, equipment handling, unpacking, inspection, installation notes, system
installation layout, installation of unit piping and installation inspection, etc.
2.1. Room Requirements
The equipment room requirements are as follows:
1. In order to ensure the normal operation of the environment control system, the equipment room should be moisture-
proof and heat-insulated.
2. The equipment room must have the moisture-proof layer of the ceiling and walls must be made of polyethylene film or
painted with moisture-proof paint.
3. The entry of outdoor air may increase the load of the system, so it is necessary to minimize the entry of outdoor air
into the equipment room. It is recommended that the intake of outdoor air be kept below 5% of the entire indoor air
circulation.
4. All doors and windows should be fully enclosed and the gap should be as small as possible.
5. In order to ensure the normal application of Liebert XDO, it is recommended that the equipment room be equipped with a
dehumidifier.
The Liebert XDO precision air-conditioner unit is prohibited to be used in the open harsh outdoor
environment.
2.2. Maintenance Space Requirements
The Liebert XDO is a set of high heat density cooling unit, which is ceiling-mounted above the heat dissipating cabinet to
form a “hot aisle-cold aisle” layout. The fan draws hot air from the cabinets, passes through the cooling coils on the two sides,
and then provides cold air to the cabinets.
2.2.1. Installation Height Requirements
In order to ensure the proper distribution of air in the hot and cold aisles in the room, the recommended height range of the
Liebert XDO above the cabinet is 457 mm to 609 mm, and the maximum height must not exceed 762 mm,
.
Figure 2-1 Height Requirement of the Unit
