Vertiv | Liebert® DM | User Manual 23
Mechanical Installation
• Vertiv recommends that the site preparation is defined as per the requirements. However, if these
requirements are not met, Vertiv recommends that rectifications to 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.
2.5.2. Installation Space Requirements
Adequate installation space for the indoor unit must be provided. The indoor unit of the air-cooled product must be installed
on the floor of equipment room or computer room and the outdoor unit must be installed at outside of data center, open to
external ambient. Figure 2-9 indicates the installation location of the indoor unit.
No. Description No. Description
1 Recommended location for unit
installation
3 *Not recommended location for unit
installation
2 IT Equipments 4 Layout of the room
Figure 2-9 Installation Location of the Indoor Unit
• Do not use the indoor unit in the open and severe outdoor environment.
• *Avoid locating the indoor unit in concave or narrow areas, which can obstruct the airflow, shorten the
cooling cycle and result in air return short cycle and air noise.
• Avoid locating multiple indoor units close to each other that can result in short cycle of air and creating
load imbalance. The minimum distance between adjacent units is 600 mm.
• Do not install the unit within the vicinity of any other precision cooling equipment to avoid the leakage of
condensed water produced due to imbalance load condition.
• Do not install other devices (such as smoke detector) over the indoor cabinet.
• The Liebert® DM can generate condensate water. Water leakage can cause damage to other precision
equipment nearby. Do not install the units in the vicinity of any precision equipment. The installation site
must have the facility of drainage piping.
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